diff --git a/hotspot/test/compiler/arguments/BMISupportedCPUTest.java b/hotspot/test/compiler/arguments/BMISupportedCPUTest.java
index df6e1540918f9797d44594cfaaa46186692266dc..c67deab9bbe78497447908b937b9c457d3f5e70f 100644
--- a/hotspot/test/compiler/arguments/BMISupportedCPUTest.java
+++ b/hotspot/test/compiler/arguments/BMISupportedCPUTest.java
@@ -60,8 +60,11 @@ public class BMISupportedCPUTest extends BMICommandLineOptionTestBase {
           VM will be launched with following flags:
           -XX:+<tested option> -version
         */
+        String errorString = String.format("JVM should start with '-XX:+%s'"
+                + " flag without any warnings", optionName);
         CommandLineOptionTest.verifySameJVMStartup(null,
-                new String[] { warningMessage }, ExitCode.OK,
+                new String[] { warningMessage }, errorString, errorString,
+                ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
 
         /*
@@ -69,8 +72,11 @@ public class BMISupportedCPUTest extends BMICommandLineOptionTestBase {
           VM will be launched with following flags:
           -XX:-<tested option> -version
         */
+        errorString = String.format("JVM should start with '-XX:-%s'"
+                + " flag without any warnings", optionName);
         CommandLineOptionTest.verifySameJVMStartup(null,
-                new String[] { warningMessage }, ExitCode.OK,
+                new String[] { warningMessage }, errorString,
+                errorString, ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, false));
 
         /*
@@ -78,7 +84,9 @@ public class BMISupportedCPUTest extends BMICommandLineOptionTestBase {
           VM will be launched with following flags:
           -version
         */
-        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "true");
+        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "true",
+                String.format("Option '%s' is expected to have default value "
+                    + "'true'", optionName));
 
         /*
           Verify that option could be explicitly turned off.
@@ -86,6 +94,8 @@ public class BMISupportedCPUTest extends BMICommandLineOptionTestBase {
           -XX:-<tested option> -version
         */
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' is set to have value 'false'",
+                    optionName),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, false));
     }
 }
diff --git a/hotspot/test/compiler/arguments/BMIUnsupportedCPUTest.java b/hotspot/test/compiler/arguments/BMIUnsupportedCPUTest.java
index 93fbcb296874e02d534ed002f994ab3d8bf16092..bae0280162abe7d77eb9b81b75be49a27b7a29d4 100644
--- a/hotspot/test/compiler/arguments/BMIUnsupportedCPUTest.java
+++ b/hotspot/test/compiler/arguments/BMIUnsupportedCPUTest.java
@@ -75,9 +75,13 @@ public class BMIUnsupportedCPUTest extends BMICommandLineOptionTestBase {
           warning. VM will be launched with following options:
           -XX:+<tested option> -version
         */
+        String errorString = String.format("JVM should start with '-XX:+%s' "
+                + "flag, but output should contain warning.", optionName);
         CommandLineOptionTest.verifySameJVMStartup(
                 new String[] { warningMessage }, new String[] { errorMessage },
-                ExitCode.OK, CommandLineOptionTest.prepareBooleanFlag(
+                errorString, String.format("Option '%s' is unsupported.%n"
+                + "Warning expected to be shown.", optionName), ExitCode.OK,
+                CommandLineOptionTest.prepareBooleanFlag(
                         optionName, true));
 
         /*
@@ -85,15 +89,21 @@ public class BMIUnsupportedCPUTest extends BMICommandLineOptionTestBase {
           VM will be launched with following options:
           -XX:-<tested option> -version
         */
+        errorString = String.format("JVM should start with '-XX:-%s' flag "
+                        + "without any warnings", optionName);
         CommandLineOptionTest.verifySameJVMStartup(null,
-                new String[] { warningMessage, errorMessage }, ExitCode.OK,
+                new String[] { warningMessage, errorMessage },
+                errorString, errorString, ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, false));
 
         /*
-          Verify that on unsupported CPUs option is off by default.
-          VM will be launched with following options: -version
-        */
-        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false");
+         * Verify that on unsupported CPUs option is off by default. VM will be
+         * launched with following options: -version
+         */
+        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' is expected to have default value "
+                        + "'false' since feature required is not supported "
+                        + "on CPU", optionName));
 
         /*
           Verify that on unsupported CPUs option will be off even if
@@ -101,6 +111,9 @@ public class BMIUnsupportedCPUTest extends BMICommandLineOptionTestBase {
           following options: -XX:+<tested option> -version
         */
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' is expected to have default value"
+                        + " 'false' since feature required is not supported on"
+                        + " CPU even if user set another value.", optionName),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
 
     }
@@ -118,11 +131,17 @@ public class BMIUnsupportedCPUTest extends BMICommandLineOptionTestBase {
           with following options: -XX:[+-]<tested option> -version
         */
         CommandLineOptionTest.verifySameJVMStartup(
-                new String[] { errorMessage }, null, ExitCode.FAIL,
+                new String[] { errorMessage }, null,
+                String.format("JVM startup should fail with '-XX:+%s' flag."
+                        + "%nOption should be unknown (non-X86CPU).",
+                        optionName), "", ExitCode.FAIL,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
 
         CommandLineOptionTest.verifySameJVMStartup(
-                new String[] { errorMessage }, null, ExitCode.FAIL,
+                new String[] { errorMessage }, null,
+                String.format("JVM startup should fail with '-XX:-%s' flag."
+                        + "%nOption should be unknown (non-X86CPU)",
+                        optionName), "", ExitCode.FAIL,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, false));
     }
 }
diff --git a/hotspot/test/compiler/arguments/TestUseCountTrailingZerosInstructionOnSupportedCPU.java b/hotspot/test/compiler/arguments/TestUseCountTrailingZerosInstructionOnSupportedCPU.java
index 2a39ada6f18d6f3c19d383a299b41902618597e5..aadd3180d49bc5f056db7165ebac6e2d4f281d44 100644
--- a/hotspot/test/compiler/arguments/TestUseCountTrailingZerosInstructionOnSupportedCPU.java
+++ b/hotspot/test/compiler/arguments/TestUseCountTrailingZerosInstructionOnSupportedCPU.java
@@ -59,6 +59,9 @@ public class TestUseCountTrailingZerosInstructionOnSupportedCPU
           -XX:-UseBMI1Instructions -version
         */
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                "Option 'UseCountTrailingZerosInstruction' should have "
+                    + "'false' value if all BMI1 instructions are explicitly"
+                    + " disabled (-XX:-UseBMI1Instructions flag used)",
                 TestUseCountTrailingZerosInstructionOnSupportedCPU.DISABLE_BMI);
 
         /*
@@ -68,6 +71,9 @@ public class TestUseCountTrailingZerosInstructionOnSupportedCPU
           -XX:+UseCountTrailingZerosInstruction -version
         */
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "true",
+                "Option 'UseCountTrailingZerosInstruction' should be able to "
+                    + "be turned on even if all BMI1 instructions are "
+                    + "disabled (-XX:-UseBMI1Instructions flag used)",
                 TestUseCountTrailingZerosInstructionOnSupportedCPU.DISABLE_BMI,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
     }
diff --git a/hotspot/test/compiler/arguments/TestUseCountTrailingZerosInstructionOnUnsupportedCPU.java b/hotspot/test/compiler/arguments/TestUseCountTrailingZerosInstructionOnUnsupportedCPU.java
index 1bd71a70a0a48abd6d3d39b0e4ed1dcb99309649..68483893a535275f9216a47fc8977cfe8520af44 100644
--- a/hotspot/test/compiler/arguments/TestUseCountTrailingZerosInstructionOnUnsupportedCPU.java
+++ b/hotspot/test/compiler/arguments/TestUseCountTrailingZerosInstructionOnUnsupportedCPU.java
@@ -59,6 +59,9 @@ public class TestUseCountTrailingZerosInstructionOnUnsupportedCPU
           -XX:+UseBMI1Instructions -version
         */
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                "Feature bmi1 is not supported on current CPU. Option "
+                    + "UseCountTrailingZerosInstruction should have 'false'"
+                    + " value",
                 TestUseCountTrailingZerosInstructionOnUnsupportedCPU.
                         ENABLE_BMI);
 
@@ -68,6 +71,9 @@ public class TestUseCountTrailingZerosInstructionOnUnsupportedCPU
           -version
         */
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                    "Feature bmi1 is not supported on current CPU. Option "
+                    + "UseCountTrailingZerosInstruction should have 'false'"
+                    + " value",
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true),
                 TestUseCountTrailingZerosInstructionOnUnsupportedCPU.
                         ENABLE_BMI);
diff --git a/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForOtherCPU.java b/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForOtherCPU.java
index c5d21ed4baa31f8a7452b0dd797998618d24ddfd..a67883166bae18059b5f92746258abf8bdacfe65 100644
--- a/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForOtherCPU.java
+++ b/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForOtherCPU.java
@@ -41,30 +41,42 @@ public class GenericTestCaseForOtherCPU extends
 
     @Override
     protected void verifyWarnings() throws Throwable {
+        String shouldPassMessage = String.format("JVM should start with "
+                + "option '%s' without any warnings", optionName);
         // Verify that on non-x86 and non-SPARC CPU usage of SHA-related
         // options will not cause any warnings.
         CommandLineOptionTest.verifySameJVMStartup(null,
-                new String[] { ".*" + optionName + ".*" }, ExitCode.OK,
+                new String[] { ".*" + optionName + ".*" }, shouldPassMessage,
+                shouldPassMessage, ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
 
         CommandLineOptionTest.verifySameJVMStartup(null,
-                new String[] { ".*" + optionName + ".*" }, ExitCode.OK,
+                new String[] { ".*" + optionName + ".*" }, shouldPassMessage,
+                shouldPassMessage, ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, false));
     }
 
     @Override
     protected void verifyOptionValues() throws Throwable {
         // Verify that option is disabled by default.
-        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false");
+        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' should be disabled by default",
+                        optionName));
 
         // Verify that option is disabled even if it was explicitly enabled
         // using CLI options.
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' should be off on unsupported "
+                        + "CPU even if set to true directly", optionName),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
 
         // Verify that option is disabled when it explicitly disabled
         // using CLI options.
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' should be off on unsupported CPU"
+                        + " even if '%s' flag set to JVM", optionName,
+                        CommandLineOptionTest.prepareBooleanFlag(
+                        SHAOptionsBase.USE_SHA_OPTION, true)),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, false));
     }
 }
diff --git a/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForSupportedSparcCPU.java b/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForSupportedSparcCPU.java
index c8ce2d52ca0e275ebc825da1477f7d198f82a654..e87943d96552390676864c16fba069be74a9b2fc 100644
--- a/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForSupportedSparcCPU.java
+++ b/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForSupportedSparcCPU.java
@@ -39,17 +39,24 @@ public class GenericTestCaseForSupportedSparcCPU extends
 
     @Override
     protected void verifyWarnings() throws Throwable {
+
+        String shouldPassMessage = String.format("JVM should start with option"
+                + " '%s' without any warnings", optionName);
         // Verify that there are no warning when option is explicitly enabled.
         CommandLineOptionTest.verifySameJVMStartup(null, new String[] {
                         SHAOptionsBase.getWarningForUnsupportedCPU(optionName)
-                }, ExitCode.OK,
+                }, shouldPassMessage, shouldPassMessage, ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
 
         // Verify that option could be disabled even if +UseSHA was passed to
         // JVM.
         CommandLineOptionTest.verifySameJVMStartup(null, new String[] {
                         SHAOptionsBase.getWarningForUnsupportedCPU(optionName)
-                }, ExitCode.OK,
+                }, shouldPassMessage, String.format("It should be able to "
+                        + "disable option '%s' even if %s was passed to JVM",
+                        optionName, CommandLineOptionTest.prepareBooleanFlag(
+                            SHAOptionsBase.USE_SHA_OPTION, true)),
+                ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA_OPTION, true),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, false));
@@ -58,7 +65,11 @@ public class GenericTestCaseForSupportedSparcCPU extends
         // all SHA intrinsics via -UseSHA without any warnings.
         CommandLineOptionTest.verifySameJVMStartup(null, new String[] {
                         SHAOptionsBase.getWarningForUnsupportedCPU(optionName)
-                }, ExitCode.OK,
+                }, shouldPassMessage, String.format("It should be able to "
+                        + "enable option '%s' even if %s was passed to JVM",
+                        optionName, CommandLineOptionTest.prepareBooleanFlag(
+                            SHAOptionsBase.USE_SHA_OPTION, false)),
+                ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA_OPTION, false),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
@@ -66,19 +77,30 @@ public class GenericTestCaseForSupportedSparcCPU extends
 
     @Override
     protected void verifyOptionValues() throws Throwable {
-        // Verify that on supported CPU option is enabled by default.
-        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "true");
+        // Verify that "It should be able to disable option "
+
+        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "true",
+                String.format("Option '%s' should be enabled by default",
+                        optionName));
 
         // Verify that it is possible to explicitly enable the option.
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "true",
+                String.format("Option '%s' was set to have value 'true'",
+                        optionName),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
 
         // Verify that it is possible to explicitly disable the option.
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' was set to have value 'false'",
+                        optionName),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, false));
 
         // verify that option is disabled when -UseSHA was passed to JVM.
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' should have value 'false' when %s"
+                        + " flag set to JVM", optionName,
+                        CommandLineOptionTest.prepareBooleanFlag(
+                            SHAOptionsBase.USE_SHA_OPTION, false)),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true),
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA_OPTION, false));
@@ -86,6 +108,10 @@ public class GenericTestCaseForSupportedSparcCPU extends
         // Verify that it is possible to explicitly disable the tested option
         // even if +UseSHA was passed to JVM.
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' should have value 'false' if set so"
+                        + " even if %s flag set to JVM", optionName,
+                        CommandLineOptionTest.prepareBooleanFlag(
+                            SHAOptionsBase.USE_SHA_OPTION, true)),
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA_OPTION, true),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, false));
diff --git a/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForUnsupportedSparcCPU.java b/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForUnsupportedSparcCPU.java
index 43bda2fb07a9c48ae5bdce10bfe756e029449bb1..e2a85fe6271a548d98f25677f7b1fbbd4a97db80 100644
--- a/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForUnsupportedSparcCPU.java
+++ b/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForUnsupportedSparcCPU.java
@@ -41,25 +41,35 @@ public class GenericTestCaseForUnsupportedSparcCPU extends
 
     @Override
     protected void verifyWarnings() throws Throwable {
+        String shouldPassMessage = String.format("JVM startup should pass with"
+                + "option '-XX:-%s' without any warnings", optionName);
         //Verify that option could be disabled without any warnings.
         CommandLineOptionTest.verifySameJVMStartup(null, new String[] {
                         SHAOptionsBase.getWarningForUnsupportedCPU(optionName)
-                }, ExitCode.OK,
+                }, shouldPassMessage, shouldPassMessage, ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, false));
     }
 
     @Override
     protected void verifyOptionValues() throws Throwable {
         // Verify that option is disabled by default.
-        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false");
+        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' should be disabled by default",
+                        optionName));
 
         // Verify that option is disabled even if it was explicitly enabled
         // using CLI options.
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' should be off on unsupported "
+                        + "SparcCPU even if set to true directly", optionName),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
 
         // Verify that option is disabled when +UseSHA was passed to JVM.
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' should be off on unsupported "
+                        + "SparcCPU even if %s flag set to JVM",
+                        optionName, CommandLineOptionTest.prepareBooleanFlag(
+                            SHAOptionsBase.USE_SHA_OPTION, true)),
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA_OPTION, true));
     }
diff --git a/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForUnsupportedX86CPU.java b/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForUnsupportedX86CPU.java
index d7033e52448ef4db9dcb8a0aa1f0d1035361ec7c..5c5d3d32e644cc94cc679acd20a49f744315160b 100644
--- a/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForUnsupportedX86CPU.java
+++ b/hotspot/test/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForUnsupportedX86CPU.java
@@ -38,33 +38,45 @@ public class GenericTestCaseForUnsupportedX86CPU
 
     @Override
     protected void verifyWarnings() throws Throwable {
+        String shouldPassMessage = String.format("JVM should start with '-XX:+"
+                + "%s' flag, but output should contain warning.", optionName);
         // Verify that when the tested option is explicitly enabled, then
         // a warning will occur in VM output.
         CommandLineOptionTest.verifySameJVMStartup(new String[] {
                         SHAOptionsBase.getWarningForUnsupportedCPU(optionName)
-                }, null, ExitCode.OK,
+                }, null, shouldPassMessage, shouldPassMessage, ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
 
+        shouldPassMessage = String.format("JVM should start with '-XX:-%s' "
+                + "flag without any warnings", optionName);
         // Verify that the tested option could be explicitly disabled without
         // a warning.
         CommandLineOptionTest.verifySameJVMStartup(null, new String[] {
                         SHAOptionsBase.getWarningForUnsupportedCPU(optionName)
-                }, ExitCode.OK,
+                }, shouldPassMessage, shouldPassMessage, ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, false));
     }
 
     @Override
     protected void verifyOptionValues() throws Throwable {
         // Verify that the tested option is disabled by default.
-        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false");
+        CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' should be disabled by default",
+                        optionName));
 
         // Verify that it is not possible to explicitly enable the option.
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' should be off on unsupported "
+                        + "X86CPU even if set to true directly", optionName),
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
 
         // Verify that the tested option is disabled even if +UseSHA was passed
         // to JVM.
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "false",
+                String.format("Option '%s' should be off on unsupported "
+                        + "X86CPU even if %s flag set to JVM",
+                        optionName, CommandLineOptionTest.prepareBooleanFlag(
+                            SHAOptionsBase.USE_SHA_OPTION, true)),
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA_OPTION, true));
     }
diff --git a/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHAIntrinsicsSpecificTestCaseForUnsupportedSparcCPU.java b/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHAIntrinsicsSpecificTestCaseForUnsupportedSparcCPU.java
index 4e208eec9586192faf71ccf10a4acb710ce6b5e4..16b925bafe58ae6a1736da78c63d146dbd2cc551 100644
--- a/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHAIntrinsicsSpecificTestCaseForUnsupportedSparcCPU.java
+++ b/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHAIntrinsicsSpecificTestCaseForUnsupportedSparcCPU.java
@@ -50,10 +50,13 @@ public class UseSHAIntrinsicsSpecificTestCaseForUnsupportedSparcCPU
     }
     @Override
     protected void verifyWarnings() throws Throwable {
-        // Verify that attempt to enable the tested option will cause a warning.
+        String shouldPassMessage = String.format("JVM should start with "
+                + "'-XX:+%s' flag, but output should contain warning.",
+                optionName);
+        // Verify that attempt to enable the tested option will cause a warning
         CommandLineOptionTest.verifySameJVMStartup(new String[] {
                         SHAOptionsBase.getWarningForUnsupportedCPU(optionName)
-                }, null, ExitCode.OK,
+                }, null, shouldPassMessage, shouldPassMessage, ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
     }
 }
diff --git a/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHASpecificTestCaseForSupportedSparcCPU.java b/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHASpecificTestCaseForSupportedSparcCPU.java
index f547568398a25cdea5fa665edfabeda115ad255d..95046ea125da9ff4b7998dbb18687be0d0f689f4 100644
--- a/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHASpecificTestCaseForSupportedSparcCPU.java
+++ b/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHASpecificTestCaseForSupportedSparcCPU.java
@@ -39,16 +39,22 @@ public class UseSHASpecificTestCaseForSupportedSparcCPU
                 IntrinsicPredicates.ANY_SHA_INSTRUCTION_AVAILABLE));
 
         Asserts.assertEQ(optionName, SHAOptionsBase.USE_SHA_OPTION,
-                "Test case should be used for " + SHAOptionsBase.USE_SHA_OPTION
-                        + " option only.");
+                String.format("Test case should be used for '%s' option only.",
+                        SHAOptionsBase.USE_SHA_OPTION));
     }
 
     @Override
     protected void verifyWarnings() throws Throwable {
+        String shouldPassMessage = String.format("JVM startup should pass when"
+                        + " %s was passed and all UseSHA*Intrinsics options "
+                        + "were disabled",
+                        CommandLineOptionTest.prepareBooleanFlag(
+                            SHAOptionsBase.USE_SHA_OPTION, true));
         // Verify that there will be no warnings when +UseSHA was passed and
         // all UseSHA*Intrinsics options were disabled.
         CommandLineOptionTest.verifySameJVMStartup(
-                null, new String[] { ".*UseSHA.*" }, ExitCode.OK,
+                null, new String[] { ".*UseSHA.*" }, shouldPassMessage,
+                shouldPassMessage, ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA_OPTION, true),
                 CommandLineOptionTest.prepareBooleanFlag(
@@ -61,10 +67,12 @@ public class UseSHASpecificTestCaseForSupportedSparcCPU
 
     @Override
     protected void verifyOptionValues() throws Throwable {
-        // Verify that UseSHA is disabled when all UseSHA*Intrinscs are
+        // Verify that UseSHA is disabled when all UseSHA*Intrinsics are
         // disabled.
         CommandLineOptionTest.verifyOptionValueForSameVM(
-                SHAOptionsBase.USE_SHA_OPTION, "false",
+                SHAOptionsBase.USE_SHA_OPTION, "false", String.format(
+                "'%s' option should be disabled when all UseSHA*Intrinsics are"
+                        + " disabled", SHAOptionsBase.USE_SHA_OPTION),
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA1_INTRINSICS_OPTION, false),
                 CommandLineOptionTest.prepareBooleanFlag(
@@ -73,9 +81,14 @@ public class UseSHASpecificTestCaseForSupportedSparcCPU
                         SHAOptionsBase.USE_SHA512_INTRINSICS_OPTION, false));
 
         CommandLineOptionTest.verifyOptionValueForSameVM(
-                // Verify that UseSHA is disabled when all UseSHA*Intrinscs are
+                // Verify that UseSHA is disabled when all UseSHA*Intrinsics are
                 // disabled even if it was explicitly enabled.
                 SHAOptionsBase.USE_SHA_OPTION, "false",
+                String.format("'%s' option should be disabled when all "
+                        + "UseSHA*Intrinsics are disabled even if %s flag set "
+                        + "to JVM", SHAOptionsBase.USE_SHA_OPTION,
+                        CommandLineOptionTest.prepareBooleanFlag(
+                             SHAOptionsBase.USE_SHA_OPTION, true)),
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA_OPTION, true),
                 CommandLineOptionTest.prepareBooleanFlag(
@@ -89,6 +102,11 @@ public class UseSHASpecificTestCaseForSupportedSparcCPU
         // if all UseSHA*Intrinsics options were enabled.
         CommandLineOptionTest.verifyOptionValueForSameVM(
                 SHAOptionsBase.USE_SHA_OPTION, "false",
+                String.format("'%s' option should be disabled if %s flag "
+                        + "set even if all UseSHA*Intrinsics were enabled",
+                        SHAOptionsBase.USE_SHA_OPTION,
+                        CommandLineOptionTest.prepareBooleanFlag(
+                            SHAOptionsBase.USE_SHA_OPTION, false)),
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA_OPTION, false),
                 CommandLineOptionTest.prepareBooleanFlag(
diff --git a/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHASpecificTestCaseForUnsupportedSparcCPU.java b/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHASpecificTestCaseForUnsupportedSparcCPU.java
index 5aceed60715a2e7df6659f7671ceeb37f5ecee5a..fb81f6e3d7982560a954278c0289d4a232bb4ed9 100644
--- a/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHASpecificTestCaseForUnsupportedSparcCPU.java
+++ b/hotspot/test/compiler/intrinsics/sha/cli/testcases/UseSHASpecificTestCaseForUnsupportedSparcCPU.java
@@ -48,18 +48,24 @@ public class UseSHASpecificTestCaseForUnsupportedSparcCPU
     @Override
     protected void verifyWarnings() throws Throwable {
         // Verify that attempt to use UseSHA option will cause a warning.
+        String shouldPassMessage = String.format("JVM startup should pass with"
+                + " '%s' option on unsupported SparcCPU, but there should be"
+                + "the message shown.", optionName);
         CommandLineOptionTest.verifySameJVMStartup(new String[] {
                         SHAOptionsBase.getWarningForUnsupportedCPU(optionName)
-                }, null, ExitCode.OK,
+                }, null, shouldPassMessage, shouldPassMessage, ExitCode.OK,
                 CommandLineOptionTest.prepareBooleanFlag(optionName, true));
     }
 
     @Override
     protected void verifyOptionValues() throws Throwable {
         // Verify that UseSHA option remains disabled even if all
-        // UseSHA*Intrincs options were enabled.
+        // UseSHA*Intrinsics were enabled.
         CommandLineOptionTest.verifyOptionValueForSameVM(
-                SHAOptionsBase.USE_SHA_OPTION, "false",
+                SHAOptionsBase.USE_SHA_OPTION, "false", String.format(
+                    "%s option should be disabled on unsupported SparcCPU"
+                        + " even if all UseSHA*Intrinsics options were enabled.",
+                    SHAOptionsBase.USE_SHA_OPTION),
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA1_INTRINSICS_OPTION, true),
                 CommandLineOptionTest.prepareBooleanFlag(
@@ -68,9 +74,14 @@ public class UseSHASpecificTestCaseForUnsupportedSparcCPU
                         SHAOptionsBase.USE_SHA512_INTRINSICS_OPTION, true));
 
         // Verify that UseSHA option remains disabled even if all
-        // UseSHA*Intrincs options were enabled and UseSHA was enabled as well.
+        // UseSHA*Intrinsics options were enabled and UseSHA was enabled as well.
         CommandLineOptionTest.verifyOptionValueForSameVM(
-                SHAOptionsBase.USE_SHA_OPTION, "false",
+                SHAOptionsBase.USE_SHA_OPTION, "false", String.format(
+                    "%s option should be disabled on unsupported SparcCPU"
+                        + " even if all UseSHA*Intrinsics options were enabled"
+                        + " and %s was enabled as well",
+                    SHAOptionsBase.USE_SHA_OPTION,
+                    SHAOptionsBase.USE_SHA_OPTION),
                 CommandLineOptionTest.prepareBooleanFlag(
                         SHAOptionsBase.USE_SHA_OPTION, true),
                 CommandLineOptionTest.prepareBooleanFlag(
diff --git a/hotspot/test/compiler/rtm/cli/RTMGenericCommandLineOptionTest.java b/hotspot/test/compiler/rtm/cli/RTMGenericCommandLineOptionTest.java
index 16177156958600cdb8719a228cda6e401fac09bf..5b9f50aef6b679dfd4cedd7ee41efbede0a87c43 100644
--- a/hotspot/test/compiler/rtm/cli/RTMGenericCommandLineOptionTest.java
+++ b/hotspot/test/compiler/rtm/cli/RTMGenericCommandLineOptionTest.java
@@ -121,7 +121,9 @@ public abstract class RTMGenericCommandLineOptionTest
      */
     protected void runNonX86TestCases() throws Throwable {
         CommandLineOptionTest.verifySameJVMStartup(
-                new String[] { errorMessage }, null, ExitCode.FAIL,
+                new String[] { errorMessage }, null,
+                String.format("Option '%s' should be unknown on non-X86CPUs.%n"
+                + "JVM startup should fail", optionName), "", ExitCode.FAIL,
                 prepareOptionValue(defaultValue));
     }
 
@@ -136,12 +138,18 @@ public abstract class RTMGenericCommandLineOptionTest
 
     protected void verifyJVMStartup() throws Throwable {
         String optionValue = prepareOptionValue(defaultValue);
+        String shouldFailMessage = String.format("VM option '%s' is "
+                + "experimental.%nVM startup expected to fail without "
+                + "-XX:+UnlockExperimentalVMOptions option", optionName);
+        String shouldPassMessage = String.format("VM option '%s' is "
+                + "experimental%nVM startup should pass with "
+                + "-XX:+UnlockExperimentalVMOptions option", optionName);
         if (isExperimental) {
             // verify that option is experimental
             CommandLineOptionTest.verifySameJVMStartup(
                     new String[] { experimentalOptionError },
-                    new String[] { errorMessage }, ExitCode.FAIL,
-                    optionValue);
+                    new String[] { errorMessage }, shouldFailMessage,
+                    shouldFailMessage, ExitCode.FAIL, optionValue);
             // verify that it could be passed if experimental options
             // are unlocked
             CommandLineOptionTest.verifySameJVMStartup(null,
@@ -149,13 +157,19 @@ public abstract class RTMGenericCommandLineOptionTest
                             experimentalOptionError,
                             errorMessage
                     },
+                    shouldPassMessage,
+                    "JVM should start without any warnings or errors",
                     ExitCode.OK,
                     CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                     optionValue);
         } else {
             // verify that option could be passed
             CommandLineOptionTest.verifySameJVMStartup(null,
-                    new String[]{errorMessage}, ExitCode.OK, optionValue);
+                    new String[]{errorMessage},
+                    String.format("VM startup shuld pass with '%s' option",
+                            optionName),
+                    "JVM should start without any warnings or errors",
+                    ExitCode.OK, optionValue);
         }
     }
 
@@ -164,10 +178,14 @@ public abstract class RTMGenericCommandLineOptionTest
         if (isExperimental) {
             CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
                     defaultValue,
+                    String.format("Option '%s' is expected to have '%s' "
+                            + "default value", optionName, defaultValue),
                     CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
         } else {
             CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
-                    defaultValue);
+                    defaultValue,
+                    String.format("Option '%s' is expected to have '%s' "
+                            + "default value", optionName, defaultValue));
         }
         // verify other specified option values
         if (optionValues == null) {
@@ -178,11 +196,15 @@ public abstract class RTMGenericCommandLineOptionTest
             if (isExperimental) {
                 CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
                         value,
+                        String.format("Option '%s' is set to have '%s' value",
+                                optionName, value),
                         CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                         prepareOptionValue(value));
             } else {
                 CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
-                        value, prepareOptionValue(value));
+                        value,
+                        String.format("Option '%s' is set to have '%s' value",
+                                optionName, value), prepareOptionValue(value));
             }
         }
     }
diff --git a/hotspot/test/compiler/rtm/cli/RTMLockingAwareTest.java b/hotspot/test/compiler/rtm/cli/RTMLockingAwareTest.java
index bcc75ef4fbb3b8d5d08645a27f5a7d6981320b9d..baa6f6d8efc4c79918b66fdfcff2fa63377c2050 100644
--- a/hotspot/test/compiler/rtm/cli/RTMLockingAwareTest.java
+++ b/hotspot/test/compiler/rtm/cli/RTMLockingAwareTest.java
@@ -131,10 +131,14 @@ public abstract class RTMLockingAwareTest
         }
         options.add(prepareOptionValue(value));
 
+        String errorString =  String.format("JVM should start with option '%s'"
+                + "'%nWarnings should be shown: %s", optionName,
+                isWarningExpected);
         CommandLineOptionTest.verifySameJVMStartup(
                 (isWarningExpected ? warnings : null),
                 (isWarningExpected ? null : warnings),
-                ExitCode.OK, options.toArray(new String[options.size()]));
+                errorString, errorString, ExitCode.OK,
+                options.toArray(new String[options.size()]));
     }
 
     private void verifyOptionValues(String value, boolean useRTMLocking,
@@ -149,6 +153,9 @@ public abstract class RTMLockingAwareTest
         options.add(prepareOptionValue(value));
 
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
-                expectedValue, options.toArray(new String[options.size()]));
+                expectedValue, String.format("Option '%s' should have '%s' "
+                        + "value if '%s' flag set",
+                        optionName, expectedValue, prepareOptionValue(value)),
+                options.toArray(new String[options.size()]));
     }
 }
diff --git a/hotspot/test/compiler/rtm/cli/TestPrintPreciseRTMLockingStatisticsBase.java b/hotspot/test/compiler/rtm/cli/TestPrintPreciseRTMLockingStatisticsBase.java
index 2c7d56507ea496f2dc7b05005b43650566ab8a42..69a5fd354d50af4618721c5032e292e33b1eaaa8 100644
--- a/hotspot/test/compiler/rtm/cli/TestPrintPreciseRTMLockingStatisticsBase.java
+++ b/hotspot/test/compiler/rtm/cli/TestPrintPreciseRTMLockingStatisticsBase.java
@@ -47,27 +47,42 @@ public abstract class TestPrintPreciseRTMLockingStatisticsBase
     protected void verifyJVMStartup() throws Throwable {
         if (Platform.isServer()) {
             if (!Platform.isDebugBuild()) {
+                String shouldFailMessage = String.format("VM option '%s' is "
+                        + "diagnostic%nJVM startup should fail without "
+                        + "-XX:\\+UnlockDiagnosticVMOptions flag", optionName);
+                String shouldPassMessage = String.format("VM option '%s' is "
+                        + "diagnostic%nJVM startup should pass with "
+                        + "-XX:\\+UnlockDiagnosticVMOptions in debug build",
+                        optionName);
                 String errorMessage = CommandLineOptionTest.
                         getDiagnosticOptionErrorMessage(optionName);
                 // verify that option is actually diagnostic
                 CommandLineOptionTest.verifySameJVMStartup(
-                        new String[] { errorMessage }, null, ExitCode.FAIL,
+                        new String[] { errorMessage }, null, shouldFailMessage,
+                        shouldFailMessage, ExitCode.FAIL,
                         prepareOptionValue("true"));
 
                 CommandLineOptionTest.verifySameJVMStartup(null,
-                        new String[] { errorMessage }, ExitCode.OK,
+                        new String[] { errorMessage }, shouldPassMessage,
+                        shouldPassMessage + "without any warnings", ExitCode.OK,
                         CommandLineOptionTest.UNLOCK_DIAGNOSTIC_VM_OPTIONS,
                         prepareOptionValue("true"));
             } else {
-                CommandLineOptionTest.verifySameJVMStartup(
-                        null, null, ExitCode.OK, prepareOptionValue("true"));
+                String shouldPassMessage = String.format("JVM startup should "
+                                + "pass with '%s' option in debug build",
+                                optionName);
+                CommandLineOptionTest.verifySameJVMStartup(null, null,
+                        shouldPassMessage, shouldPassMessage,
+                        ExitCode.OK, prepareOptionValue("true"));
             }
         } else {
             String errorMessage = CommandLineOptionTest.
                     getUnrecognizedOptionErrorMessage(optionName);
-
+            String shouldFailMessage =  String.format("JVM startup should fail"
+                    + " with '%s' option in not debug build", optionName);
             CommandLineOptionTest.verifySameJVMStartup(
-                    new String[]{errorMessage}, null, ExitCode.FAIL,
+                    new String[]{errorMessage}, null, shouldFailMessage,
+                    shouldFailMessage, ExitCode.FAIL,
                     CommandLineOptionTest.UNLOCK_DIAGNOSTIC_VM_OPTIONS,
                     prepareOptionValue("true"));
         }
@@ -79,6 +94,9 @@ public abstract class TestPrintPreciseRTMLockingStatisticsBase
             // Verify default value
             CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
                     TestPrintPreciseRTMLockingStatisticsBase.DEFAULT_VALUE,
+                    String.format("Option '%s' should have '%s' default value",
+                            optionName,
+                       TestPrintPreciseRTMLockingStatisticsBase.DEFAULT_VALUE),
                     CommandLineOptionTest.UNLOCK_DIAGNOSTIC_VM_OPTIONS);
         }
     }
diff --git a/hotspot/test/compiler/rtm/cli/TestPrintPreciseRTMLockingStatisticsOptionOnSupportedConfig.java b/hotspot/test/compiler/rtm/cli/TestPrintPreciseRTMLockingStatisticsOptionOnSupportedConfig.java
index 42540645927453f7cac281de4bd5968f83ad8514..cf3ebabb925ec3ba714c6e3d0b5f0e043a454f5b 100644
--- a/hotspot/test/compiler/rtm/cli/TestPrintPreciseRTMLockingStatisticsOptionOnSupportedConfig.java
+++ b/hotspot/test/compiler/rtm/cli/TestPrintPreciseRTMLockingStatisticsOptionOnSupportedConfig.java
@@ -53,18 +53,28 @@ public class TestPrintPreciseRTMLockingStatisticsOptionOnSupportedConfig
         // verify default value
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
                 TestPrintPreciseRTMLockingStatisticsBase.DEFAULT_VALUE,
+                String.format("Option '%s' should have '%s' default value on"
+                        + " supported CPU", optionName,
+                TestPrintPreciseRTMLockingStatisticsBase.DEFAULT_VALUE),
                 CommandLineOptionTest.UNLOCK_DIAGNOSTIC_VM_OPTIONS,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking");
 
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
                 TestPrintPreciseRTMLockingStatisticsBase.DEFAULT_VALUE,
+                String.format("Option '%s' should have '%s' default value on"
+                        + " supported CPU when -XX:-UseRTMLocking flag set",
+                        optionName,
+                       TestPrintPreciseRTMLockingStatisticsBase.DEFAULT_VALUE),
                 CommandLineOptionTest.UNLOCK_DIAGNOSTIC_VM_OPTIONS,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:-UseRTMLocking", prepareOptionValue("true"));
 
         // verify that option could be turned on
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName, "true",
+                String.format("Option '%s' should have 'true' value when set "
+                        + "on supported CPU and -XX:+UseRTMLocking flag set",
+                        optionName),
                 CommandLineOptionTest.UNLOCK_DIAGNOSTIC_VM_OPTIONS,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking", prepareOptionValue("true"));
diff --git a/hotspot/test/compiler/rtm/cli/TestUseRTMDeoptOptionOnSupportedConfig.java b/hotspot/test/compiler/rtm/cli/TestUseRTMDeoptOptionOnSupportedConfig.java
index 40be15012c4b86132e24ef932563baddc97bc1e3..de40746ec9f4a48569d94d6216c773e426feaa59 100644
--- a/hotspot/test/compiler/rtm/cli/TestUseRTMDeoptOptionOnSupportedConfig.java
+++ b/hotspot/test/compiler/rtm/cli/TestUseRTMDeoptOptionOnSupportedConfig.java
@@ -51,26 +51,40 @@ public class TestUseRTMDeoptOptionOnSupportedConfig
 
     @Override
     public void runTestCases() throws Throwable {
+        String shouldPassMessage = " JVM should startup with option '"
+                + "-XX:+UseRTMDeopt' without any warnings";
         // verify that option could be turned on
         CommandLineOptionTest.verifySameJVMStartup(
-                null, null, ExitCode.OK, "-XX:+UseRTMDeopt");
+                null, null, shouldPassMessage, shouldPassMessage, ExitCode.OK,
+                "-XX:+UseRTMDeopt");
+        shouldPassMessage = " JVM should startup with option '"
+                + "-XX:-UseRTMDeopt' without any warnings";
         // verify that option could be turned off
         CommandLineOptionTest.verifySameJVMStartup(
-                null, null, ExitCode.OK, "-XX:-UseRTMDeopt");
+                null, null, shouldPassMessage, shouldPassMessage, ExitCode.OK,
+                "-XX:-UseRTMDeopt");
+        String defValMessage = String.format("UseRTMDeopt should have '%s'"
+                                    + "default value",
+                        TestUseRTMDeoptOptionOnSupportedConfig.DEFAULT_VALUE);
         // verify default value
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt",
-                TestUseRTMDeoptOptionOnSupportedConfig.DEFAULT_VALUE);
+                TestUseRTMDeoptOptionOnSupportedConfig.DEFAULT_VALUE,
+                defValMessage);
         // verify default value
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt",
                 TestUseRTMDeoptOptionOnSupportedConfig.DEFAULT_VALUE,
+                defValMessage,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking");
         // verify that option is off when UseRTMLocking is off
-        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt", "false",
+        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt",
+                "false", "UseRTMDeopt should be off when UseRTMLocking is off",
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:-UseRTMLocking", "-XX:+UseRTMDeopt");
         // verify that option could be turned on
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt", "true",
+                "UseRTMDeopt should be on when UseRTMLocking is on and "
+                        + "'-XX:+UseRTMDeopt' flag set",
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking", "-XX:+UseRTMDeopt");
     }
diff --git a/hotspot/test/compiler/rtm/cli/TestUseRTMDeoptOptionOnUnsupportedConfig.java b/hotspot/test/compiler/rtm/cli/TestUseRTMDeoptOptionOnUnsupportedConfig.java
index 6183dfc51ff3d5c42ff78081118751a29698bf88..59f9f450feb3fab0ce86faf93f1645493881b825 100644
--- a/hotspot/test/compiler/rtm/cli/TestUseRTMDeoptOptionOnUnsupportedConfig.java
+++ b/hotspot/test/compiler/rtm/cli/TestUseRTMDeoptOptionOnUnsupportedConfig.java
@@ -50,7 +50,8 @@ public class TestUseRTMDeoptOptionOnUnsupportedConfig
         super(new NotPredicate(new AndPredicate(new SupportedCPU(),
                         new SupportedVM())),
                 "UseRTMDeopt", true, false,
-                TestUseRTMDeoptOptionOnUnsupportedConfig.DEFAULT_VALUE, "true");
+                TestUseRTMDeoptOptionOnUnsupportedConfig.DEFAULT_VALUE,
+                "true");
     }
 
     @Override
@@ -58,11 +59,16 @@ public class TestUseRTMDeoptOptionOnUnsupportedConfig
         super.verifyJVMStartup();
         // verify default value
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
-                defaultValue);
+                defaultValue, String.format("'%s' should have '%s' "
+                        + "default value on unsupported configs.",
+                        optionName, DEFAULT_VALUE));
         // verify that until RTMLocking is not used, value
         // will be set to default false.
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
-                defaultValue, "-XX:+UseRTMDeopt");
+                defaultValue, String.format("'%s' should be off on unsupported"
+                        + " configs even if '-XX:+%s' flag set", optionName,
+                        optionName),
+                "-XX:+UseRTMDeopt");
     }
 
     public static void main(String args[]) throws Throwable {
diff --git a/hotspot/test/compiler/rtm/cli/TestUseRTMForStackLocksOptionOnSupportedConfig.java b/hotspot/test/compiler/rtm/cli/TestUseRTMForStackLocksOptionOnSupportedConfig.java
index d4b7406ce8b7aaf8bb19e8cf741e0e48843c46e3..692c396354cb9b8eaf359f92330df98873c2aebc 100644
--- a/hotspot/test/compiler/rtm/cli/TestUseRTMForStackLocksOptionOnSupportedConfig.java
+++ b/hotspot/test/compiler/rtm/cli/TestUseRTMForStackLocksOptionOnSupportedConfig.java
@@ -58,43 +58,67 @@ public class TestUseRTMForStackLocksOptionOnSupportedConfig
         String warningMessage
                 = RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING;
 
+        String shouldFailMessage = " VM option 'UseRTMForStackLocks' is "
+                + "experimental%nJVM startup should fail without "
+                + "-XX:+UnlockExperimentalVMOptions flag";
+
         CommandLineOptionTest.verifySameJVMStartup(
-                new String[] { errorMessage }, null, ExitCode.FAIL,
+                new String[] { errorMessage }, null, shouldFailMessage,
+                shouldFailMessage + "%nError message expected", ExitCode.FAIL,
                 "-XX:+UseRTMForStackLocks");
+        String shouldPassMessage = " VM option 'UseRTMForStackLocks'"
+                + " is experimental%nJVM startup should pass with "
+                + "-XX:+UnlockExperimentalVMOptions flag";
         // verify that we get a warning when trying to use rtm for stack
         // lock, but not using rtm locking.
         CommandLineOptionTest.verifySameJVMStartup(
-                new String[] { warningMessage }, null, ExitCode.OK,
+                new String[] { warningMessage }, null, shouldPassMessage,
+                "There should be warning when trying to use rtm for stack "
+                        + "lock, but not using rtm locking", ExitCode.OK,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMForStackLocks",
                 "-XX:-UseRTMLocking");
         // verify that we don't get a warning when no using rtm for stack
         // lock and not using rtm locking.
         CommandLineOptionTest.verifySameJVMStartup(null,
-                new String[] { warningMessage }, ExitCode.OK,
+                new String[] { warningMessage }, shouldPassMessage,
+                "There should not be any warning when use both "
+                        + "-XX:-UseRTMForStackLocks and -XX:-UseRTMLocking "
+                        + "flags",
+                ExitCode.OK,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:-UseRTMForStackLocks",
                 "-XX:-UseRTMLocking");
         // verify that we don't get a warning when using rtm for stack
         // lock and using rtm locking.
         CommandLineOptionTest.verifySameJVMStartup(null,
-                new String[] { warningMessage }, ExitCode.OK,
+                new String[] { warningMessage }, shouldPassMessage,
+                "There should not be any warning when use both "
+                        + "-XX:+UseRTMForStackLocks and -XX:+UseRTMLocking"
+                        + " flags",
+                ExitCode.OK,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMForStackLocks",
                 "-XX:+UseRTMLocking");
         // verify that default value if false
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
                 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,
+                "Default value of option 'UseRTMForStackLocks' should be false",
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
         // verify that default value is false even with +UseRTMLocking
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
                 TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,
+                "Default value of option 'UseRTMForStackLocks' should be false",
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking");
         // verify that we can turn the option on
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",
-                "true", CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
-                "-XX:+UseRTMLocking", "-XX:+UseRTMForStackLocks");
+                        "true", "Value of option 'UseRTMForStackLocks' should "
+                                + "be able to be set as 'true' when both "
+                                + "-XX:+UseRTMForStackLocks and "
+                                + "-XX:+UseRTMLocking flags used",
+                        CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
+                        "-XX:+UseRTMLocking", "-XX:+UseRTMForStackLocks");
     }
 
     public static void main(String args[]) throws Throwable {
diff --git a/hotspot/test/compiler/rtm/cli/TestUseRTMForStackLocksOptionOnUnsupportedConfig.java b/hotspot/test/compiler/rtm/cli/TestUseRTMForStackLocksOptionOnUnsupportedConfig.java
index d70f5ff39cf04ab947d9db3a8e72978fa53af21f..829cb560368aa094bfb1bef1d16cb7096eebab41 100644
--- a/hotspot/test/compiler/rtm/cli/TestUseRTMForStackLocksOptionOnUnsupportedConfig.java
+++ b/hotspot/test/compiler/rtm/cli/TestUseRTMForStackLocksOptionOnUnsupportedConfig.java
@@ -57,33 +57,50 @@ public class TestUseRTMForStackLocksOptionOnUnsupportedConfig
 
     @Override
     protected void runX86SupportedVMTestCases() throws Throwable {
+        String shouldFailMessage = String.format("VM option '%s' is "
+                + "experimental%nJVM startup should fail without "
+                + "-XX:+UnlockExperimentalVMOptions flag", optionName);
+
         // verify that option is experimental
         CommandLineOptionTest.verifySameJVMStartup(
-                new String[]{ experimentalOptionError },
-                null, ExitCode.FAIL, prepareOptionValue("true"));
+                new String[] { experimentalOptionError }, null,
+                shouldFailMessage, shouldFailMessage + "%nError message "
+                        + "should be shown", ExitCode.FAIL,
+                prepareOptionValue("true"));
 
         CommandLineOptionTest.verifySameJVMStartup(
-                new String[]{ experimentalOptionError },
-                null, ExitCode.FAIL, prepareOptionValue("false"));
+                new String[]{ experimentalOptionError }, null,
+                shouldFailMessage, shouldFailMessage + "%nError message "
+                        + "should be shown", ExitCode.FAIL,
+                prepareOptionValue("false"));
 
+        String shouldPassMessage = String.format("VM option '%s' is "
+                + " experimental%nJVM startup should pass with "
+                + "-XX:+UnlockExperimentalVMOptions flag", optionName);
         // verify that if we turn it on, then VM output will contain
         // warning saying that this option could be turned on only
         // when we use rtm locking
         CommandLineOptionTest.verifySameJVMStartup(
                 new String[]{
                     RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING
-                },
-                null, ExitCode.OK,
+                }, null, shouldPassMessage, "There should be warning when try "
+                    + "to use rtm for stack lock, but not using rtm locking",
+                ExitCode.OK,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 prepareOptionValue("true")
         );
         // verify that options is turned off by default
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
                 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE,
+                String.format("Default value of option '%s' should be '%s'",
+                        optionName, DEFAULT_VALUE),
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
         // verify that it could not be turned on without rtm locking
         CommandLineOptionTest.verifyOptionValueForSameVM(optionName,
                 TestUseRTMForStackLocksOptionOnUnsupportedConfig.DEFAULT_VALUE,
+                String.format("Value of '%s' shouldn't able to be set to "
+                        + "'true' without setting -XX:+UseRTMLocking flag",
+                        optionName),
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 prepareOptionValue("true"));
     }
diff --git a/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnSupportedConfig.java b/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnSupportedConfig.java
index d7d7e464057dce9e75fd8943a0151870f488dbaa..6012d56c11c5fe588ea5e4221fae82bd4659228e 100644
--- a/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnSupportedConfig.java
+++ b/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnSupportedConfig.java
@@ -54,12 +54,16 @@ public class TestUseRTMLockingOptionOnSupportedConfig
         String unrecongnizedOption
                 =  CommandLineOptionTest.getUnrecognizedOptionErrorMessage(
                 "UseRTMLocking");
+        String shouldPassMessage = "VM option 'UseRTMLocking' is experimental"
+                + "%nJVM startup should pass with "
+                + "-XX:+UnlockExperimentalVMOptions flag";
         // verify that there are no warning or error in VM output
         CommandLineOptionTest.verifySameJVMStartup(null,
                 new String[]{
                         RTMGenericCommandLineOptionTest.RTM_INSTR_ERROR,
                         unrecongnizedOption
-                }, ExitCode.OK,
+                }, shouldPassMessage, "There should not be any warning when use"
+                        + "with -XX:+UnlockExperimentalVMOptions", ExitCode.OK,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking"
         );
@@ -68,21 +72,28 @@ public class TestUseRTMLockingOptionOnSupportedConfig
                 new String[]{
                         RTMGenericCommandLineOptionTest.RTM_INSTR_ERROR,
                         unrecongnizedOption
-                }, ExitCode.OK,
+                }, shouldPassMessage, "There should not be any warning when use"
+                        + "with -XX:+UnlockExperimentalVMOptions", ExitCode.OK,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:-UseRTMLocking"
         );
         // verify that UseRTMLocking is of by default
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
                 TestUseRTMLockingOptionOnSupportedConfig.DEFAULT_VALUE,
+                String.format("Default value of option 'UseRTMLocking' should "
+                    + "be '%s'", DEFAULT_VALUE),
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);
         // verify that we can change UseRTMLocking value
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
                 TestUseRTMLockingOptionOnSupportedConfig.DEFAULT_VALUE,
+                String.format("Default value of option 'UseRTMLocking' should "
+                    + "be '%s'", DEFAULT_VALUE),
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:-UseRTMLocking");
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
-                "true", CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
+                "true", "Value of 'UseRTMLocking' should be set "
+                        + "to 'true' if -XX:+UseRTMLocking flag set",
+                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking");
     }
 
diff --git a/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnUnsupportedCPU.java b/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnUnsupportedCPU.java
index 65944b7260b10e15537b25c621916eb138d6a8f6..3fba16e1e0902990d81b5e3f81d3524377cafc59 100644
--- a/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnUnsupportedCPU.java
+++ b/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnUnsupportedCPU.java
@@ -59,33 +59,44 @@ public class TestUseRTMLockingOptionOnUnsupportedCPU
         String errorMessage = RTMGenericCommandLineOptionTest.RTM_INSTR_ERROR;
 
         if (Platform.isX86() || Platform.isX64()) {
+            String shouldFailMessage = "JVM startup should fail with option "
+                    + "-XX:+UseRTMLocking on unsupported CPU";
             // verify that we get an error when use +UseRTMLocking
             // on unsupported CPU
             CommandLineOptionTest.verifySameJVMStartup(
                     new String[] { errorMessage },
-                    new String[] { unrecongnizedOption },
+                    new String[] { unrecongnizedOption }, shouldFailMessage,
+                    shouldFailMessage + ". Error message should be shown",
                     ExitCode.FAIL, "-XX:+UseRTMLocking");
+
+            String shouldPassMessage = "JVM startup should pass with option "
+                    + "-XX:-UseRTMLocking even on unsupported CPU";
             // verify that we can pass -UseRTMLocking without
             // getting any error messages
-            CommandLineOptionTest.verifySameJVMStartup(
-                    null,
-                    new String[]{
-                            errorMessage,
-                            unrecongnizedOption
-                    }, ExitCode.OK, "-XX:-UseRTMLocking");
+            CommandLineOptionTest.verifySameJVMStartup(null, new String[] {
+                    errorMessage, unrecongnizedOption }, shouldPassMessage,
+                    shouldPassMessage + " without any warnings", ExitCode.OK,
+                    "-XX:-UseRTMLocking");
 
             // verify that UseRTMLocking is false by default
             CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
-                    TestUseRTMLockingOptionOnUnsupportedCPU.DEFAULT_VALUE);
+                    TestUseRTMLockingOptionOnUnsupportedCPU.DEFAULT_VALUE,
+                    String.format("Default value of option 'UseRTMLocking' "
+                        +"should be '%s'", DEFAULT_VALUE));
         } else {
+            String shouldFailMessage = "RTMLocking should be unrecognized"
+                    + " on non-x86 CPUs. JVM startup should fail."
+                    + "Error message should be shown";
             // verify that on non-x86 CPUs RTMLocking could not be used
             CommandLineOptionTest.verifySameJVMStartup(
                     new String[] { unrecongnizedOption },
-                    null, ExitCode.FAIL, "-XX:+UseRTMLocking");
+                    null, shouldFailMessage, shouldFailMessage,
+                    ExitCode.FAIL, "-XX:+UseRTMLocking");
 
             CommandLineOptionTest.verifySameJVMStartup(
                     new String[] { unrecongnizedOption },
-                    null, ExitCode.FAIL, "-XX:-UseRTMLocking");
+                    null, shouldFailMessage, shouldFailMessage,
+                    ExitCode.FAIL, "-XX:-UseRTMLocking");
         }
     }
 
diff --git a/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnUnsupportedVM.java b/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnUnsupportedVM.java
index bb883fd5ec7bd4037e94976945c307ea03f296a1..a03122491d10767ff85eda45b56c381a7263d5d3 100644
--- a/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnUnsupportedVM.java
+++ b/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionOnUnsupportedVM.java
@@ -54,17 +54,26 @@ public class TestUseRTMLockingOptionOnUnsupportedVM
     public void runTestCases() throws Throwable {
         String errorMessage
                 = RTMGenericCommandLineOptionTest.RTM_UNSUPPORTED_VM_ERROR;
+        String shouldFailMessage = "JVM startup should fail with option "
+                + "-XX:+UseRTMLocking even on unsupported VM. Error message"
+                + " should be shown";
+        String shouldPassMessage = "JVM startup should pass with option "
+                + "-XX:-UseRTMLocking even on unsupported VM";
         // verify that we can't use +UseRTMLocking
         CommandLineOptionTest.verifySameJVMStartup(
-                new String[] { errorMessage }, null, ExitCode.FAIL,
-                "-XX:+UseRTMLocking");
+                new String[] { errorMessage }, null, shouldFailMessage,
+                shouldFailMessage, ExitCode.FAIL,
+                 "-XX:+UseRTMLocking");
         // verify that we can turn it off
         CommandLineOptionTest.verifySameJVMStartup(null,
-                new String[] { errorMessage }, ExitCode.OK,
+                new String[] { errorMessage }, shouldPassMessage,
+                shouldPassMessage + " without any warnings", ExitCode.OK,
                 "-XX:-UseRTMLocking");
         // verify that it is off by default
         CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMLocking",
-                TestUseRTMLockingOptionOnUnsupportedVM.DEFAULT_VALUE);
+                TestUseRTMLockingOptionOnUnsupportedVM.DEFAULT_VALUE,
+                String.format("Default value of option 'UseRTMLocking' should"
+                    + " be '%s'", DEFAULT_VALUE));
     }
 
     public static void main(String args[]) throws Throwable {
diff --git a/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionWithBiasedLocking.java b/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionWithBiasedLocking.java
index f92dcac36165956b3cf2a4350ad219ea80338cec..ed82aec36c4fdac96d8e8d4a32948d1dd277a170 100644
--- a/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionWithBiasedLocking.java
+++ b/hotspot/test/compiler/rtm/cli/TestUseRTMLockingOptionWithBiasedLocking.java
@@ -51,25 +51,44 @@ public class TestUseRTMLockingOptionWithBiasedLocking
     public void runTestCases() throws Throwable {
         String warningMessage
                 = RTMGenericCommandLineOptionTest.RTM_BIASED_LOCKING_WARNING;
+        String shouldPassMessage = "JVM startup should pass with both "
+                + "-XX:+UseRTMLocking and "
+                + "-XX:-UseBiasedLocking flags set without any warnings";
         // verify that we will not get a warning
         CommandLineOptionTest.verifySameJVMStartup(null,
-                new String[] { warningMessage }, ExitCode.OK,
+                new String[] { warningMessage }, shouldPassMessage,
+                shouldPassMessage, ExitCode.OK,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking", "-XX:-UseBiasedLocking");
+
         // verify that we will get a warning
         CommandLineOptionTest.verifySameJVMStartup(
-                new String[] { warningMessage }, null, ExitCode.OK,
+                new String[] { warningMessage }, null,
+                "JVM startup should pass when both -XX:+UseRTMLocking and "
+                        + "-XX:+UseBiasedLocking flags set",
+                "Flags -XX:+UseRTMLocking"
+                        + " and -XX:+UseBiasedLocking conflicts. "
+                        + "Warning should be shown.", ExitCode.OK,
                 CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
         // verify that UseBiasedLocking is false when we use rtm locking
         CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking",
-                "false", CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
+                "false",
+                "Value of option 'UseBiasedLocking' should be false if"
+                        + "-XX:+UseRTMLocking flag set.",
+                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                 "-XX:+UseRTMLocking");
         // verify that we can't turn on biased locking when
         // using rtm locking
-        CommandLineOptionTest.verifyOptionValueForSameVM("UseBiasedLocking",
-                "false", CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
-                "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
+        CommandLineOptionTest
+                .verifyOptionValueForSameVM(
+                        "UseBiasedLocking",
+                        "false",
+                        "Value of option 'UseBiasedLocking' should be false if"
+                                + "both -XX:+UseRTMLocking and "
+                                + "-XX:+UseBiasedLocking flags set.",
+                        CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
+                        "-XX:+UseRTMLocking", "-XX:+UseBiasedLocking");
     }
 
     public static void main(String args[]) throws Throwable {
diff --git a/hotspot/test/testlibrary/com/oracle/java/testlibrary/cli/CommandLineOptionTest.java b/hotspot/test/testlibrary/com/oracle/java/testlibrary/cli/CommandLineOptionTest.java
index 8da6c0264ef1cd6b8a83b34cf12df27c98205193..807a3aba664a68619016e171cacd9754b7310764 100644
--- a/hotspot/test/testlibrary/com/oracle/java/testlibrary/cli/CommandLineOptionTest.java
+++ b/hotspot/test/testlibrary/com/oracle/java/testlibrary/cli/CommandLineOptionTest.java
@@ -49,7 +49,7 @@ public abstract class CommandLineOptionTest {
     private static final String PRINT_FLAGS_FINAL_FORMAT = "%s\\s*:?=\\s*%s";
 
     /**
-     * Verifies that JVM startup behaviour matches our expectations.
+     * Verifies that JVM startup behavior matches our expectations.
      *
      * @param option an option that should be passed to JVM
      * @param expectedMessages an array of patterns that should occur
@@ -58,18 +58,24 @@ public abstract class CommandLineOptionTest {
      * @param unexpectedMessages an array of patterns that should not
      *                           occur in JVM output. If {@code null} then
      *                           JVM output could be empty.
+     * @param exitErrorMessage message that will be shown if exit code is not
+     *                           as expected.
+     * @param wrongWarningMessage message that will be shown if warning
+     *                           messages are not as expected.
      * @param exitCode expected exit code.
      * @throws Throwable if verification fails or some other issues occur.
      */
     public static void verifyJVMStartup(String option,
             String expectedMessages[], String unexpectedMessages[],
+            String exitErrorMessage, String wrongWarningMessage,
             ExitCode exitCode) throws Throwable {
         CommandLineOptionTest.verifyJVMStartup(expectedMessages,
-                unexpectedMessages, exitCode, false, option);
+                unexpectedMessages, exitErrorMessage,
+                wrongWarningMessage, exitCode, false, option);
     }
 
     /**
-     * Verifies that JVM startup behaviour matches our expectations.
+     * Verifies that JVM startup behavior matches our expectations.
      *
      * @param expectedMessages an array of patterns that should occur
      *                         in JVM output. If {@code null} then
@@ -77,6 +83,10 @@ public abstract class CommandLineOptionTest {
      * @param unexpectedMessages an array of patterns that should not
      *                           occur in JVM output. If {@code null} then
      *                           JVM output could be empty.
+     * @param exitErrorMessage message that will be shown if exit code is not
+     *                           as expected.
+     * @param wrongWarningMessage message that will be shown if warning
+     *                           messages are not as expected.
      * @param exitCode expected exit code.
      * @param addTestVMOptions if {@code true} then test VM options will be
      *                         passed to VM.
@@ -85,8 +95,10 @@ public abstract class CommandLineOptionTest {
      * @throws Throwable if verification fails or some other issues occur.
      */
     public static void verifyJVMStartup(String expectedMessages[],
-            String unexpectedMessages[], ExitCode exitCode,
-            boolean addTestVMOptions, String... options) throws Throwable {
+            String unexpectedMessages[], String exitErrorMessage,
+            String wrongWarningMessage, ExitCode exitCode,
+            boolean addTestVMOptions, String... options)
+                    throws Throwable {
         List<String> finalOptions = new ArrayList<>();
         if (addTestVMOptions) {
             Collections.addAll(finalOptions, Utils.getTestJavaOpts());
@@ -99,23 +111,46 @@ public abstract class CommandLineOptionTest {
                 new String[finalOptions.size()]));
         OutputAnalyzer outputAnalyzer
                 = new OutputAnalyzer(processBuilder.start());
-        outputAnalyzer.shouldHaveExitValue(exitCode.value);
+
+        try {
+                outputAnalyzer.shouldHaveExitValue(exitCode.value);
+        } catch (RuntimeException e) {
+            String errorMessage = String.format(
+                    "JVM process should have exit value '%d'.%n%s",
+                    exitCode.value, exitErrorMessage);
+            throw new AssertionError(errorMessage, e);
+        }
+
 
         if (expectedMessages != null) {
             for (String expectedMessage : expectedMessages) {
-                outputAnalyzer.shouldMatch(expectedMessage);
+                try {
+                    outputAnalyzer.shouldMatch(expectedMessage);
+                } catch (RuntimeException e) {
+                    String errorMessage = String.format(
+                            "Expected message not found: '%s'.%n%s",
+                            expectedMessage, wrongWarningMessage);
+                    throw new AssertionError(errorMessage, e);
+                }
             }
         }
 
         if (unexpectedMessages != null) {
             for (String unexpectedMessage : unexpectedMessages) {
-                outputAnalyzer.shouldNotMatch(unexpectedMessage);
+                try {
+                    outputAnalyzer.shouldNotMatch(unexpectedMessage);
+                } catch (RuntimeException e) {
+                    String errorMessage = String.format(
+                            "Unexpected message found: '%s'.%n%s",
+                            unexpectedMessage, wrongWarningMessage);
+                    throw new AssertionError(errorMessage, e);
+                }
             }
         }
     }
 
     /**
-     * Verifies that JVM startup behaviour matches our expectations when type
+     * Verifies that JVM startup behavior matches our expectations when type
      * of newly started VM is the same as the type of current.
      *
      * @param expectedMessages an array of patterns that should occur
@@ -124,20 +159,26 @@ public abstract class CommandLineOptionTest {
      * @param unexpectedMessages an array of patterns that should not
      *                           occur in JVM output. If {@code null} then
      *                           JVM output could be empty.
+     * @param exitErrorMessage Message that will be shown if exit value is not
+     *                           as expected.
+     * @param wrongWarningMessage message that will be shown if warning
+     *                           messages are not as expected.
      * @param exitCode expected exit code.
      * @param options options that should be passed to VM in addition to mode
      *                flag.
      * @throws Throwable if verification fails or some other issues occur.
      */
     public static void verifySameJVMStartup(String expectedMessages[],
-            String unexpectedMessages[], ExitCode exitCode, String... options)
-            throws  Throwable {
+            String unexpectedMessages[], String exitErrorMessage,
+            String wrongWarningMessage, ExitCode exitCode, String... options)
+            throws Throwable {
         List<String> finalOptions = new ArrayList<>();
         finalOptions.add(CommandLineOptionTest.getVMTypeOption());
         Collections.addAll(finalOptions, options);
 
         CommandLineOptionTest.verifyJVMStartup(expectedMessages,
-                unexpectedMessages, exitCode, false,
+                unexpectedMessages, exitErrorMessage,
+                wrongWarningMessage, exitCode, false,
                 finalOptions.toArray(new String[finalOptions.size()]));
     }
 
@@ -149,13 +190,17 @@ public abstract class CommandLineOptionTest {
      *
      * @param optionName a name of tested option.
      * @param expectedValue expected value of tested option.
+     * @param optionErrorString message will be shown if option value is not as
+     *                         expected.
      * @param additionalVMOpts additional options that should be
      *                         passed to JVM.
      * @throws Throwable if verification fails or some other issues occur.
      */
     public static void verifyOptionValue(String optionName,
-            String expectedValue, String... additionalVMOpts) throws Throwable {
-        verifyOptionValue(optionName, expectedValue, true, additionalVMOpts);
+            String expectedValue, String optionErrorString,
+            String... additionalVMOpts) throws Throwable {
+        verifyOptionValue(optionName, expectedValue,  optionErrorString,
+                true, additionalVMOpts);
     }
 
     /**
@@ -168,14 +213,17 @@ public abstract class CommandLineOptionTest {
      * @param expectedValue expected value of tested option.
      * @param addTestVmOptions if {@code true}, then test VM options
      *                         will be used.
+     * @param optionErrorString message will be shown if option value is not as
+     *                         expected.
      * @param additionalVMOpts additional options that should be
      *                         passed to JVM.
      * @throws Throwable if verification fails or some other issues
      *                          occur.
      */
     public static void verifyOptionValue(String optionName,
-            String expectedValue, boolean addTestVmOptions,
-            String... additionalVMOpts) throws Throwable {
+            String expectedValue, String optionErrorString,
+            boolean addTestVmOptions, String... additionalVMOpts)
+                    throws Throwable {
         List<String> vmOpts = new ArrayList<>();
 
         if (addTestVmOptions) {
@@ -191,10 +239,25 @@ public abstract class CommandLineOptionTest {
         OutputAnalyzer outputAnalyzer
                 = new OutputAnalyzer(processBuilder.start());
 
-        outputAnalyzer.shouldHaveExitValue(0);
+        try {
+            outputAnalyzer.shouldHaveExitValue(0);
+        } catch (RuntimeException e) {
+            String errorMessage = String.format(
+                    "JVM should start with option '%s' without errors.",
+                    optionName);
+            throw new AssertionError(errorMessage, e);
+        }
+        try {
         outputAnalyzer.shouldMatch(String.format(
                 CommandLineOptionTest.PRINT_FLAGS_FINAL_FORMAT,
                 optionName, expectedValue));
+        } catch (RuntimeException e) {
+            String errorMessage =  String.format(
+                    "Option '%s' is expected to have '%s' value%n%s",
+                    optionName, expectedValue,
+                    optionErrorString);
+            throw new AssertionError(errorMessage, e);
+        }
     }
 
     /**
@@ -207,18 +270,21 @@ public abstract class CommandLineOptionTest {
      *
      * @param optionName name of tested option.
      * @param expectedValue expected value of tested option.
+     * @param optionErrorString message to show if option has another value
      * @param additionalVMOpts additional options that should be
      *                         passed to JVM.
      * @throws Throwable if verification fails or some other issues occur.
      */
     public static void verifyOptionValueForSameVM(String optionName,
-            String expectedValue, String... additionalVMOpts) throws Throwable {
+            String expectedValue, String optionErrorString,
+            String... additionalVMOpts) throws Throwable {
         List<String> finalOptions = new ArrayList<>();
         finalOptions.add(CommandLineOptionTest.getVMTypeOption());
         Collections.addAll(finalOptions, additionalVMOpts);
 
         CommandLineOptionTest.verifyOptionValue(optionName, expectedValue,
-                false, finalOptions.toArray(new String[finalOptions.size()]));
+                optionErrorString, false,
+                finalOptions.toArray(new String[finalOptions.size()]));
     }
 
     /**