Merge

src/share/vm/prims/whitebox.cpp

@@ -160,6 +160,7 @@ WB_END
 
 #ifdef LINUX
 #include "utilities/elfFile.hpp"
+#include "osContainer_linux.hpp"
 #endif
 
 WB_ENTRY(jlong, WB_GetCompressedOopsMaxHeapSize(JNIEnv* env, jobject o)) {
@@ -1028,6 +1029,15 @@ WB_ENTRY(jboolean, WB_CheckLibSpecifiesNoexecstack(JNIEnv* env, jobject o, jstri
   return ret;
 WB_END
 
+WB_ENTRY(jboolean, WB_IsContainerized(JNIEnv* env, jobject o))
+  LINUX_ONLY(return OSContainer::is_containerized();)
+  return false;
+WB_END
+
+WB_ENTRY(void, WB_PrintOsInfo(JNIEnv* env, jobject o))
+  os::print_os_info(tty);
+WB_END
+
 #define CC (char*)
 
 static JNINativeMethod methods[] = {
@@ -1141,6 +1151,8 @@ static JNINativeMethod methods[] = {
   {CC"forceSafepoint",     CC"()V",                   (void*)&WB_ForceSafepoint     },
   {CC"checkLibSpecifiesNoexecstack", CC"(Ljava/lang/String;)Z",
                                                       (void*)&WB_CheckLibSpecifiesNoexecstack},
+  {CC"isContainerized",           CC"()Z",            (void*)&WB_IsContainerized },
+  {CC"printOsInfo",               CC"()V",            (void*)&WB_PrintOsInfo },
 };
 
 #undef CC

test/runtime/containers/docker/AttemptOOM.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+public class AttemptOOM {
+    private static MyObj[] data;
+
+    public static void main(String[] args) throws Exception {
+        System.out.println("Entering AttemptOOM main");
+
+        // each MyObj will allocate 1024 byte array
+        int sizeInMb = Integer.parseInt(args[0]);
+        data = new MyObj[sizeInMb*1024];
+
+        System.out.println("data.length = " + data.length);
+
+        for (int i=0; i < data.length; i++) {
+            data[i] = new MyObj(1024);
+        }
+
+        System.out.println("AttemptOOM allocation successful");
+    }
+
+    private static class MyObj {
+        private byte[] myData;
+        MyObj(int size) {
+            myData = new byte[size];
+        }
+    }
+}

test/runtime/containers/docker/CPUSetsReader.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.io.FileReader;
+import java.util.ArrayList;
+import java.util.Optional;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import com.oracle.java.testlibrary.Asserts;
+
+
+// A simple CPU sets reader and parser
+public class CPUSetsReader {
+    public static String PROC_SELF_STATUS_PATH="/proc/self/status";
+
+    // Test the parser
+    public static void test() {
+        assertParse("0-7", "0,1,2,3,4,5,6,7");
+        assertParse("1,3,6", "1,3,6");
+        assertParse("0,2-4,6,10-11", "0,2,3,4,6,10,11");
+        assertParse("0", "0");
+    }
+
+
+    private static void assertParse(String cpuSet, String expectedResult) {
+        Asserts.assertEquals(listToString(parseCpuSet(cpuSet)), expectedResult);
+    }
+
+
+    public static String readFromProcStatus(String setType) {
+        String path = PROC_SELF_STATUS_PATH;
+        Optional<String> o = Optional.empty();
+
+        System.out.println("readFromProcStatus() entering for: " + setType);
+
+        try (Stream<String> stream = Files.lines(Paths.get(path))) {
+            o = stream
+                .filter(line -> line.contains(setType))
+                .findFirst();
+        } catch (IOException e) {
+            return null;
+        }
+
+        if (!o.isPresent()) {
+            return null;    // entry not found
+        }
+
+        String[] parts = o.get().replaceAll("\\s","").split(":");
+
+        // Should be 2 parts, before and after ":"
+        Asserts.assertEquals(parts.length, 2);
+
+        String result = parts[1];
+        System.out.println("readFromProcStatus() returning: " + result);
+        return result;
+    }
+
+
+    public static List<Integer> parseCpuSet(String value) {
+        ArrayList<Integer> result = new ArrayList<Integer>();
+
+        try {
+            String[] commaSeparated = value.split(",");
+
+            for (String item : commaSeparated) {
+                if (item.contains("-")) {
+                    addRange(result, item);
+                } else {
+                    result.add(Integer.parseInt(item));
+                }
+            }
+        } catch (Exception e) {
+            System.err.println("Exception in getMaxCpuSets(): " + e);
+            return null;
+        }
+
+        return result;
+    }
+
+
+    private static void addRange(ArrayList<Integer> list, String s) {
+        String[] range = s.split("-");
+        if ( range.length != 2 ) {
+            throw new RuntimeException("Range should only contain two items, but contains "
+                                       + range.length + " items");
+        }
+
+        int min = Integer.parseInt(range[0]);
+        int max = Integer.parseInt(range[1]);
+
+        if (min >= max) {
+            String msg = String.format("min is greater or equals to max, min = %d, max = %d",
+                                       min, max);
+            throw new RuntimeException(msg);
+        }
+
+        for (int i = min; i <= max; i++) {
+            list.add(i);
+        }
+    }
+
+
+    // Convert list of integers to string with comma-separated values
+    public static String listToString(List<Integer> list) {
+        return listToString(list, Integer.MAX_VALUE);
+    }
+
+    // Convert list of integers to a string with comma-separated values;
+    // include up to maxCount.
+    public static String listToString(List<Integer> list, int maxCount) {
+        return list.stream()
+            .limit(maxCount)
+            .map(Object::toString)
+            .collect(Collectors.joining(","));
+    }
+}

test/runtime/containers/docker/CheckContainerized.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import sun.hotspot.WhiteBox;
+
+public class CheckContainerized {
+    public static String OUTSIDE_OF_CONTAINER =
+        "CheckContainerized: Running outside of a container";
+    public static String INSIDE_A_CONTAINER =
+        "CheckContainerized: Running inside a container";
+
+    public static void main(String[] args) {
+        System.out.println("CheckContainerized: Entering");
+        WhiteBox wb = WhiteBox.getWhiteBox();
+
+        if (wb.isContainerized()) {
+            System.out.println(INSIDE_A_CONTAINER);
+
+        } else {
+            System.out.println(OUTSIDE_OF_CONTAINER);
+        }
+    }
+}
+

test/runtime/containers/docker/DockerBasicTest.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+/*
+ * @test
+ * @summary Basic (sanity) test for JDK-under-test inside a docker image.
+ * @library /testlibrary
+ * @build HelloDocker
+ * @run driver DockerBasicTest
+ */
+
+import com.oracle.java.testlibrary.Utils;
+import com.oracle.java.testlibrary.Platform;
+import com.oracle.java.testlibrary.DockerTestUtils;
+import com.oracle.java.testlibrary.DockerRunOptions;
+
+public class DockerBasicTest {
+    private static final String imageNameAndTag = "jdk8-internal:test";
+    // Diganostics: set to false to examine image after the test
+    private static final boolean removeImageAfterTest = true;
+
+    public static void main(String[] args) throws Exception {
+        if (!DockerTestUtils.canTestDocker()) {
+            return;
+        }
+        DockerTestUtils.buildJdkDockerImage(imageNameAndTag, "Dockerfile-BasicTest", "jdk-docker");
+
+        try {
+            testJavaVersion();
+            testHelloDocker();
+        } finally {
+            if (removeImageAfterTest)
+                DockerTestUtils.removeDockerImage(imageNameAndTag);
+        }
+    }
+
+
+    private static void testJavaVersion() throws Exception {
+        DockerRunOptions opts =
+            new DockerRunOptions(imageNameAndTag, "/jdk/bin/java", "-version");
+
+        DockerTestUtils.dockerRunJava(opts)
+            .shouldHaveExitValue(0)
+            .shouldContain(Platform.vmName);
+    }
+
+
+    private static void testHelloDocker() throws Exception {
+        DockerRunOptions opts =
+            new DockerRunOptions(imageNameAndTag, "/jdk/bin/java", "HelloDocker")
+            .addJavaOpts("-cp", "/test-classes/")
+            .addDockerOpts("--volume", Utils.TEST_CLASSES + ":/test-classes/");
+
+        DockerTestUtils.dockerRunJava(opts)
+            .shouldHaveExitValue(0)
+            .shouldContain("Hello Docker");
+    }
+}
+

test/runtime/containers/docker/Dockerfile-BasicTest

+FROM oraclelinux:7.2
+MAINTAINER mikhailo.seledtsov@oracle.com
+
+COPY /jdk /jdk
+
+ENV JAVA_HOME=/jdk
+
+CMD ["/bin/bash"]

test/runtime/containers/docker/Dockerfile-BasicTest-aarch64

+# Use generic ubuntu Linux on AArch64
+FROM aarch64/ubuntu
+
+COPY /jdk /jdk
+
+ENV JAVA_HOME=/jdk
+
+CMD ["/bin/bash"]

test/runtime/containers/docker/Dockerfile-BasicTest-ppc64le

+# test on x86_64 uses Oracle Linux but we do not have this for ppc64le
+# so use some other Linux where OpenJDK works 
+# FROM oraclelinux:7.2
+FROM ppc64le/ubuntu
+
+COPY /jdk /jdk
+
+ENV JAVA_HOME=/jdk
+
+CMD ["/bin/bash"]

test/runtime/containers/docker/Dockerfile-BasicTest-s390x

+FROM s390x/ubuntu
+
+COPY /jdk /jdk
+
+ENV JAVA_HOME=/jdk
+
+CMD ["/bin/bash"]

test/runtime/containers/docker/HelloDocker.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+public class HelloDocker {
+    public static void main(String args[]) {
+        System.out.println("Hello Docker");
+    }
+}

test/runtime/containers/docker/PrintContainerInfo.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import sun.hotspot.WhiteBox;
+
+public class PrintContainerInfo {
+
+    public static void main(String[] args) {
+        System.out.println("PrintContainerInfo: Entering");
+        WhiteBox wb = WhiteBox.getWhiteBox();
+
+        wb.printOsInfo();
+    }
+}

test/runtime/containers/docker/TEST.properties

+exclusiveAccess.dirs=.

test/runtime/containers/docker/TestCPUAwareness.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+/*
+ * @test
+ * @summary Test JVM's CPU resource awareness when running inside docker container
+ * @library /testlibrary
+ * @run driver TestCPUAwareness
+ */
+
+import java.util.List;
+import com.oracle.java.testlibrary.Common;
+import com.oracle.java.testlibrary.DockerTestUtils;
+import com.oracle.java.testlibrary.DockerRunOptions;
+
+public class TestCPUAwareness {
+private static final String imageName = Common.imageName("cpu");
+    private static final int availableCPUs = Runtime.getRuntime().availableProcessors();
+
+    public static void main(String[] args) throws Exception {
+        if (!DockerTestUtils.canTestDocker()) {
+            return;
+        }
+
+        System.out.println("Test Environment: detected availableCPUs = " + availableCPUs);
+        DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker");
+
+        try {
+            // cpuset, period, shares, expected Active Processor Count
+            testComboWithCpuSets();
+
+            // cpu shares - it should be safe to use CPU shares exceeding available CPUs
+            testCpuShares(256, 1);
+            testCpuShares(2048, 2);
+            testCpuShares(4096, 4);
+
+            // leave one CPU for system and tools, otherwise this test may be unstable
+            int maxNrOfAvailableCpus =  availableCPUs - 1;
+            for (int i=1; i < maxNrOfAvailableCpus; i = i * 2) {
+                testCpus(i, i);
+            }
+
+            // If ActiveProcessorCount is set, the VM should use it, regardless of other
+            // container settings, host settings or available CPUs on the host.
+            testActiveProcessorCount(1, 1);
+            testActiveProcessorCount(2, 2);
+
+            // cpu quota and period
+            testCpuQuotaAndPeriod(50*1000, 100*1000);
+            testCpuQuotaAndPeriod(100*1000, 100*1000);
+            testCpuQuotaAndPeriod(150*1000, 100*1000);
+            testCpuQuotaAndPeriod(400*1000, 100*1000);
+
+        } finally {
+            DockerTestUtils.removeDockerImage(imageName);
+        }
+    }
+
+
+    private static void testComboWithCpuSets() throws Exception {
+        String cpuSetStr = CPUSetsReader.readFromProcStatus("Cpus_allowed_list");
+        System.out.println("cpuSetStr = " + cpuSetStr);
+
+        if (cpuSetStr == null) {
+            System.out.printf("The cpuset test cases are skipped");
+        } else {
+            List<Integer> cpuSet = CPUSetsReader.parseCpuSet(cpuSetStr);
+
+            // Test subset of cpuset with one element
+            if (cpuSet.size() >= 1) {
+                String testCpuSet = CPUSetsReader.listToString(cpuSet, 1);
+                testAPCCombo(testCpuSet, 200*1000, 100*1000,   4*1024, true, 1);
+            }
+
+            // Test subset of cpuset with two elements
+            if (cpuSet.size() >= 2) {
+                String testCpuSet = CPUSetsReader.listToString(cpuSet, 2);
+                testAPCCombo(testCpuSet, 200*1000, 100*1000, 4*1024, true, 2);
+                testAPCCombo(testCpuSet, 200*1000, 100*1000, 1023,   true, 2);
+                testAPCCombo(testCpuSet, 200*1000, 100*1000, 1023,   false,  1);
+            }
+
+            // Test subset of cpuset with three elements
+            if (cpuSet.size() >= 3) {
+                String testCpuSet = CPUSetsReader.listToString(cpuSet, 3);
+                testAPCCombo(testCpuSet, 100*1000, 100*1000, 2*1024, true, 1);
+                testAPCCombo(testCpuSet, 200*1000, 100*1000, 1023,   true, 2);
+                testAPCCombo(testCpuSet, 200*1000, 100*1000, 1023,   false,  1);
+            }
+        }
+    }
+
+
+    private static void testActiveProcessorCount(int valueToSet, int expectedValue) throws Exception {
+        Common.logNewTestCase("Test ActiveProcessorCount: valueToSet = " + valueToSet);
+
+        DockerRunOptions opts = Common.newOpts(imageName)
+            .addJavaOpts("-XX:ActiveProcessorCount=" + valueToSet, "-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintActiveCpus");
+        Common.run(opts)
+            .shouldMatch("active processor count set by user.*" + expectedValue);
+    }
+
+
+    private static void testCpus(int valueToSet, int expectedTraceValue) throws Exception {
+        Common.logNewTestCase("test cpus: " + valueToSet);
+        DockerRunOptions opts = Common.newOpts(imageName)
+            .addDockerOpts("--cpus", "" + valueToSet);
+        Common.run(opts)
+            .shouldMatch("active_processor_count.*" + expectedTraceValue);
+    }
+
+
+    // Expected active processor count can not exceed available CPU count
+    private static int adjustExpectedAPCForAvailableCPUs(int expectedAPC) {
+        if (expectedAPC > availableCPUs) {
+            expectedAPC = availableCPUs;
+            System.out.println("Adjusted expectedAPC = " + expectedAPC);
+        }
+        return expectedAPC;
+    }
+
+
+    private static void testCpuQuotaAndPeriod(int quota, int period)
+        throws Exception {
+        Common.logNewTestCase("test cpu quota and period: ");
+        System.out.println("quota = " + quota);
+        System.out.println("period = " + period);
+
+        int expectedAPC = (int) Math.ceil((float) quota / (float) period);
+        System.out.println("expectedAPC = " + expectedAPC);
+        expectedAPC = adjustExpectedAPCForAvailableCPUs(expectedAPC);
+
+        DockerRunOptions opts = Common.newOpts(imageName)
+            .addDockerOpts("--cpu-period=" + period)
+            .addDockerOpts("--cpu-quota=" + quota);
+
+        Common.run(opts)
+            .shouldMatch("CPU Period is.*" + period)
+            .shouldMatch("CPU Quota is.*" + quota)
+            .shouldMatch("active_processor_count.*" + expectedAPC);
+    }
+
+
+    // Test correctess of automatically selected active processor cound
+    private static void testAPCCombo(String cpuset, int quota, int period, int shares,
+                                     boolean usePreferContainerQuotaForCPUCount,
+                                     int expectedAPC) throws Exception {
+        Common.logNewTestCase("test APC Combo");
+        System.out.println("cpuset = " + cpuset);
+        System.out.println("quota = " + quota);
+        System.out.println("period = " + period);
+        System.out.println("shares = " + period);
+        System.out.println("usePreferContainerQuotaForCPUCount = " + usePreferContainerQuotaForCPUCount);
+        System.out.println("expectedAPC = " + expectedAPC);
+
+        expectedAPC = adjustExpectedAPCForAvailableCPUs(expectedAPC);
+
+        DockerRunOptions opts = Common.newOpts(imageName)
+            .addDockerOpts("--cpuset-cpus", "" + cpuset)
+            .addDockerOpts("--cpu-period=" + period)
+            .addDockerOpts("--cpu-quota=" + quota)
+            .addDockerOpts("--cpu-shares=" + shares);
+
+        if (!usePreferContainerQuotaForCPUCount) opts.addJavaOpts("-XX:-PreferContainerQuotaForCPUCount");
+
+        Common.run(opts)
+            .shouldMatch("active_processor_count.*" + expectedAPC);
+    }
+
+
+    private static void testCpuShares(int shares, int expectedAPC) throws Exception {
+        Common.logNewTestCase("test cpu shares, shares = " + shares);
+        System.out.println("expectedAPC = " + expectedAPC);
+
+        expectedAPC = adjustExpectedAPCForAvailableCPUs(expectedAPC);
+
+        DockerRunOptions opts = Common.newOpts(imageName)
+            .addDockerOpts("--cpu-shares=" + shares);
+        Common.run(opts)
+            .shouldMatch("CPU Shares is.*" + shares)
+            .shouldMatch("active_processor_count.*" + expectedAPC);
+    }
+}

test/runtime/containers/docker/TestCPUSets.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+/*
+ * @test
+ * @summary Test JVM's awareness of cpu sets (cpus and mems)
+ * @library /testlibrary /testlibrary/whitebox
+ * @build AttemptOOM CPUSetsReader sun.hotspot.WhiteBox PrintContainerInfo
+ * @run driver ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
+ * @run driver TestCPUSets
+ */
+
+import java.util.List;
+import com.oracle.java.testlibrary.Common;
+import com.oracle.java.testlibrary.DockerRunOptions;
+import com.oracle.java.testlibrary.DockerTestUtils;
+import com.oracle.java.testlibrary.Asserts;
+import com.oracle.java.testlibrary.Platform;
+import com.oracle.java.testlibrary.Utils;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+
+
+public class TestCPUSets {
+    private static final String imageName = Common.imageName("cpusets");
+
+    public static void main(String[] args) throws Exception {
+        if (!DockerTestUtils.canTestDocker()) {
+            return;
+        }
+
+        Common.prepareWhiteBox();
+        DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker");
+
+        try {
+            // Sanity test the cpu sets reader and parser
+            CPUSetsReader.test();
+            testTheSet("Cpus_allowed_list");
+            testTheSet("Mems_allowed_list");
+        } finally {
+            DockerTestUtils.removeDockerImage(imageName);
+        }
+    }
+
+
+    private static void testTheSet(String setType) throws Exception {
+        String cpuSetStr = CPUSetsReader.readFromProcStatus(setType);
+
+        if (cpuSetStr == null) {
+            System.out.printf("The %s test is skipped %n", setType);
+        } else {
+            List<Integer> cpuSet = CPUSetsReader.parseCpuSet(cpuSetStr);
+
+            // Test subset of one, full subset, and half of the subset
+            testCpuSet(CPUSetsReader.listToString(cpuSet, 1));
+            if (cpuSet.size() > 1) {
+                testCpuSet(CPUSetsReader.listToString(cpuSet));
+            }
+            if (cpuSet.size() > 2) {
+                testCpuSet(CPUSetsReader.listToString(cpuSet, cpuSet.size()/2 ));
+            }
+        }
+    }
+
+
+    private static DockerRunOptions commonOpts() {
+        DockerRunOptions opts = new DockerRunOptions(imageName, "/jdk/bin/java",
+                                                     "PrintContainerInfo");
+        opts.addDockerOpts("--volume", Utils.TEST_CLASSES + ":/test-classes/");
+        opts.addJavaOpts("-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintContainerInfo", "-cp", "/test-classes/");
+        Common.addWhiteBoxOpts(opts);
+        return opts;
+    }
+
+
+    private static void checkResult(List<String> lines, String lineMarker, String value) {
+        boolean lineMarkerFound = false;
+
+        for (String line : lines) {
+            if (line.contains(lineMarker)) {
+                lineMarkerFound = true;
+                String[] parts = line.split(":");
+                System.out.println("DEBUG: line = " + line);
+                System.out.println("DEBUG: parts.length = " + parts.length);
+
+                Asserts.assertEquals(parts.length, 2);
+                String set = parts[1].replaceAll("\\s","");
+                String actual = CPUSetsReader.listToString(CPUSetsReader.parseCpuSet(set));
+                Asserts.assertEquals(actual, value);
+                break;
+            }
+        }
+        Asserts.assertTrue(lineMarkerFound);
+    }
+
+
+    private static void testCpuSet(String value) throws Exception {
+        Common.logNewTestCase("cpusets.cpus, value = " + value);
+
+        DockerRunOptions opts = commonOpts();
+        opts.addDockerOpts("--cpuset-cpus=" + value);
+
+        List<String> lines = Common.run(opts).asLines();
+        checkResult(lines, "cpuset.cpus is:", value);
+    }
+
+    private static void testMemSet(String value) throws Exception {
+        Common.logNewTestCase("cpusets.mems, value = " + value);
+
+        DockerRunOptions opts = commonOpts();
+        opts.addDockerOpts("--cpuset-mems=" + value);
+
+        List<String> lines = Common.run(opts).asLines();
+        checkResult(lines, "cpuset.mems is:", value);
+    }
+
+}

test/runtime/containers/docker/TestMemoryAwareness.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+/*
+ * @test
+ * @summary Test JVM's memory resource awareness when running inside docker container
+ * @library /testlibrary /testlibrary/whitebox
+ * @build AttemptOOM sun.hotspot.WhiteBox PrintContainerInfo
+ * @run driver ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
+ * @run driver TestMemoryAwareness
+ */
+
+import com.oracle.java.testlibrary.Common;
+import com.oracle.java.testlibrary.DockerRunOptions;
+import com.oracle.java.testlibrary.DockerTestUtils;
+
+
+public class TestMemoryAwareness {
+    private static final String imageName = Common.imageName("memory");
+
+    public static void main(String[] args) throws Exception {
+        if (!DockerTestUtils.canTestDocker()) {
+            return;
+        }
+
+        Common.prepareWhiteBox();
+        DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker");
+
+        try {
+            testMemoryLimit("100m", "104857600");
+            testMemoryLimit("500m", "524288000");
+            testMemoryLimit("1g", "1073741824");
+            testMemoryLimit("4g", "4294967296");
+
+            testMemorySoftLimit("500m", "524288000");
+            testMemorySoftLimit("1g", "1073741824");
+
+            // Add extra 10 Mb to allocator limit, to be sure to cause OOM
+            testOOM("256m", 256 + 10);
+
+        } finally {
+            DockerTestUtils.removeDockerImage(imageName);
+        }
+    }
+
+
+    private static void testMemoryLimit(String valueToSet, String expectedTraceValue)
+            throws Exception {
+
+        Common.logNewTestCase("memory limit: " + valueToSet);
+
+        DockerRunOptions opts = Common.newOpts(imageName)
+            .addDockerOpts("--memory", valueToSet);
+
+        Common.run(opts)
+            .shouldMatch("Memory Limit is:.*" + expectedTraceValue);
+    }
+
+
+    private static void testMemorySoftLimit(String valueToSet, String expectedTraceValue)
+            throws Exception {
+        Common.logNewTestCase("memory soft limit: " + valueToSet);
+
+        DockerRunOptions opts = Common.newOpts(imageName, "PrintContainerInfo");
+        Common.addWhiteBoxOpts(opts);
+        opts.addDockerOpts("--memory-reservation=" + valueToSet);
+
+        Common.run(opts)
+            .shouldMatch("Memory Soft Limit.*" + expectedTraceValue);
+    }
+
+
+    // provoke OOM inside the container, see how VM reacts
+    private static void testOOM(String dockerMemLimit, int sizeToAllocInMb) throws Exception {
+        Common.logNewTestCase("OOM");
+
+        DockerRunOptions opts = Common.newOpts(imageName, "AttemptOOM")
+            .addDockerOpts("--memory", dockerMemLimit, "--memory-swap", dockerMemLimit);
+        opts.classParams.add("" + sizeToAllocInMb);
+
+        DockerTestUtils.dockerRunJava(opts)
+            .shouldHaveExitValue(1)
+            .shouldContain("Entering AttemptOOM main")
+            .shouldNotContain("AttemptOOM allocation successful")
+            .shouldContain("java.lang.OutOfMemoryError");
+    }
+
+}

test/runtime/containers/docker/TestMisc.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+/*
+ * @test
+ * @summary Test miscellanous functionality related to JVM running in docker container
+ * @library /testlibrary /testlibrary/whitebox
+ * @build CheckContainerized sun.hotspot.WhiteBox PrintContainerInfo
+ * @run driver ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
+ * @run driver TestMisc
+ */
+
+import com.oracle.java.testlibrary.Common;
+import com.oracle.java.testlibrary.DockerTestUtils;
+import com.oracle.java.testlibrary.DockerRunOptions;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.ProcessTools;
+
+
+public class TestMisc {
+    private static final String imageName = Common.imageName("misc");
+
+    public static void main(String[] args) throws Exception {
+        if (!DockerTestUtils.canTestDocker()) {
+            return;
+        }
+
+        Common.prepareWhiteBox();
+        DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker");
+
+        try {
+            testMinusContainerSupport();
+            testIsContainerized();
+            testPrintContainerInfo();
+        } finally {
+            DockerTestUtils.removeDockerImage(imageName);
+        }
+    }
+
+
+    private static void testMinusContainerSupport() throws Exception {
+        Common.logNewTestCase("Test related flags: '-UseContainerSupport'");
+        DockerRunOptions opts = new DockerRunOptions(imageName, "/jdk/bin/java", "-version");
+        opts.addJavaOpts("-XX:+UnlockDiagnosticVMOptions", "-XX:-UseContainerSupport", "-XX:+PrintContainerInfo");
+
+        Common.run(opts)
+            .shouldContain("Container Support not enabled");
+    }
+
+
+    private static void testIsContainerized() throws Exception {
+        Common.logNewTestCase("Test is_containerized() inside a docker container");
+
+        DockerRunOptions opts = Common.newOpts(imageName, "CheckContainerized");
+        Common.addWhiteBoxOpts(opts);
+
+        Common.run(opts)
+            .shouldContain(CheckContainerized.INSIDE_A_CONTAINER);
+    }
+
+
+    private static void testPrintContainerInfo() throws Exception {
+        Common.logNewTestCase("Test print_container_info()");
+
+        DockerRunOptions opts = Common.newOpts(imageName, "PrintContainerInfo");
+        Common.addWhiteBoxOpts(opts);
+
+        checkContainerInfo(Common.run(opts));
+    }
+
+
+    private static void checkContainerInfo(OutputAnalyzer out) throws Exception {
+        String[] expectedToContain = new String[] {
+            "cpuset.cpus",
+            "cpuset.mems",
+            "CPU Shares",
+            "CPU Quota",
+            "CPU Period",
+            "OSContainer::active_processor_count",
+            "Memory Limit",
+            "Memory Soft Limit",
+            "Memory Usage",
+            "Maximum Memory Usage",
+            "memory_max_usage_in_bytes"
+        };
+
+        for (String s : expectedToContain) {
+            out.shouldContain(s);
+        }
+    }
+
+}

test/testlibrary/ClassFileInstaller.java

 /*
- * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -21,28 +21,229 @@
  * questions.
  */
 
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.FileNotFoundException;
 import java.io.InputStream;
+import java.io.ByteArrayInputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.StandardCopyOption;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
 
 /**
- * Dump a class file for a class on the class path in the current directory
+ * Dump a class file for a class on the class path in the current directory, or
+ * in the specified JAR file. This class is usually used when you build a class
+ * from a test library, but want to use this class in a sub-process.
+ *
+ * For example, to build the following library class:
+ * test/lib/sun/hotspot/WhiteBox.java
+ *
+ * You would use the following tags:
+ *
+ * @library /test/lib
+ * @build sun.hotspot.WhiteBox
+ *
+ * JTREG would build the class file under
+ * ${JTWork}/classes/test/lib/sun/hotspot/WhiteBox.class
+ *
+ * With you run your main test class using "@run main MyMainClass", JTREG would setup the
+ * -classpath to include "${JTWork}/classes/test/lib/", so MyMainClass would be able to
+ * load the WhiteBox class.
+ *
+ * However, if you run a sub process, and do not wish to use the exact same -classpath,
+ * You can use ClassFileInstaller to ensure that WhiteBox is available in the current
+ * directory of your test:
+ *
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ *
+ * Or, you can use the -jar option to store the class in the specified JAR file. If a relative
+ * path name is given, the JAR file would be relative to the current directory of
+ *
+ * @run main ClassFileInstaller -jar myjar.jar sun.hotspot.WhiteBox
  */
 public class ClassFileInstaller {
+    /**
+     * You can enable debug tracing of ClassFileInstaller by running JTREG with
+     * jtreg -DClassFileInstaller.debug=true ... <names of tests>
+     */
+    public static boolean DEBUG = Boolean.getBoolean("ClassFileInstaller.debug");
+
     /**
      * @param args The names of the classes to dump
      * @throws Exception
      */
     public static void main(String... args) throws Exception {
-        for (String arg : args) {
-            ClassLoader cl = ClassFileInstaller.class.getClassLoader();
+        if (args.length > 1 && args[0].equals("-jar")) {
+            if (args.length < 2) {
+                throw new RuntimeException("Usage: ClassFileInstaller <options> <classes>\n" +
+                                           "where possible options include:\n" +
+                                           "  -jar <path>             Write to the JAR file <path>");
+            }
+            writeJar(args[1], null, args, 2, args.length);
+        } else {
+            if (DEBUG) {
+                System.out.println("ClassFileInstaller: Writing to " + System.getProperty("user.dir"));
+            }
+            for (String arg : args) {
+                writeClassToDisk(arg);
+            }
+        }
+    }
+
+    public static class Manifest {
+        private InputStream in;
+
+        private Manifest(InputStream in) {
+            this.in = in;
+        }
+
+        static Manifest fromSourceFile(String fileName) throws Exception {
+            String pathName = System.getProperty("test.src") + File.separator + fileName;
+            return new Manifest(new FileInputStream(pathName));
+        }
+
+        // Example:
+        //  String manifest = "Premain-Class: RedefineClassHelper\n" +
+        //                "Can-Redefine-Classes: true\n";
+        //  ClassFileInstaller.writeJar("redefineagent.jar",
+        //    ClassFileInstaller.Manifest.fromString(manifest),
+        //    "RedefineClassHelper");
+        static Manifest fromString(String manifest) throws Exception {
+            return new Manifest(new ByteArrayInputStream(manifest.getBytes()));
+        }
+
+        public InputStream getInputStream() {
+            return in;
+        }
+    }
+
+    private static void writeJar(String jarFile, Manifest manifest, String classes[], int from, int to) throws Exception {
+        if (DEBUG) {
+            System.out.println("ClassFileInstaller: Writing to " + getJarPath(jarFile));
+        }
+
+        (new File(jarFile)).delete();
+        FileOutputStream fos = new FileOutputStream(jarFile);
+        ZipOutputStream zos = new ZipOutputStream(fos);
+
+        // The manifest must be the first or second entry. See comments in JarInputStream
+        // constructor and JDK-5046178.
+        if (manifest != null) {
+            writeToDisk(zos, "META-INF/MANIFEST.MF", manifest.getInputStream());
+        }
+
+        for (int i=from; i<to; i++) {
+            writeClassToDisk(zos, classes[i]);
+        }
+
+        zos.close();
+        fos.close();
+    }
+
+    /*
+     * You can call ClassFileInstaller.writeJar() from your main test class instead of
+     * using "@run ClassFileInstaller -jar ...". E.g.,
+     *
+     * String jarPath = ClassFileInstaller.getJarPath("myjar.jar", "sun.hotspot.WhiteBox")
+     *
+     * If you call this API, make sure you build ClassFileInstaller with the following tags:
+     *
+     * @library testlibrary
+     * @build ClassFileInstaller
+     */
+    public static String writeJar(String jarFile, String... classes) throws Exception {
+        writeJar(jarFile, null, classes, 0, classes.length);
+        return getJarPath(jarFile);
+    }
 
-            // Convert dotted class name to a path to a class file
-            String pathName = arg.replace('.', '/').concat(".class");
-            InputStream is = cl.getResourceAsStream(pathName);
+    public static String writeJar(String jarFile, Manifest manifest, String... classes) throws Exception {
+        writeJar(jarFile, manifest, classes, 0, classes.length);
+        return getJarPath(jarFile);
+    }
+
+    /**
+     * This returns the absolute path to the file specified in "@ClassFileInstaller -jar myjar.jar",
+     * In your test program, instead of using the JAR file name directly:
+     *
+     * String jarPath = "myjar.jar";
+     *
+     * you should call this function, like:
+     *
+     * String jarPath = ClassFileInstaller.getJarPath("myjar.jar")
+     *
+     * The reasons are:
+     * (1) Using absolute path makes it easy to cut-and-paste from the JTR file and rerun your
+     *     test in any directory.
+     * (2) In the future, we may make the JAR file name unique to avoid clobbering
+     *     during parallel JTREG execution.
+     *
+     */
+    public static String getJarPath(String jarFileName) {
+        return new File(jarFileName).getAbsolutePath();
+    }
+
+    public static void writeClassToDisk(String className) throws Exception {
+        writeClassToDisk((ZipOutputStream)null, className);
+    }
+    private static void writeClassToDisk(ZipOutputStream zos, String className) throws Exception {
+        writeClassToDisk(zos, className, "");
+    }
 
+    public static void writeClassToDisk(String className, String prependPath) throws Exception {
+        writeClassToDisk(null, className, prependPath);
+    }
+    private static void writeClassToDisk(ZipOutputStream zos, String className, String prependPath) throws Exception {
+        ClassLoader cl = ClassFileInstaller.class.getClassLoader();
+
+        // Convert dotted class name to a path to a class file
+        String pathName = className.replace('.', '/').concat(".class");
+        InputStream is = cl.getResourceAsStream(pathName);
+        if (is == null) {
+            throw new RuntimeException("Failed to find " + pathName);
+        }
+        if (prependPath.length() > 0) {
+            pathName = prependPath + "/" + pathName;
+        }
+        writeToDisk(zos, pathName, is);
+    }
+
+    public static void writeClassToDisk(String className, byte[] bytecode) throws Exception {
+        writeClassToDisk(null, className, bytecode);
+    }
+    private static void writeClassToDisk(ZipOutputStream zos, String className, byte[] bytecode) throws Exception {
+        writeClassToDisk(zos, className, bytecode, "");
+    }
+
+    public static void writeClassToDisk(String className, byte[] bytecode, String prependPath) throws Exception {
+        writeClassToDisk(null, className, bytecode, prependPath);
+    }
+    private static void writeClassToDisk(ZipOutputStream zos, String className, byte[] bytecode, String prependPath) throws Exception {
+        // Convert dotted class name to a path to a class file
+        String pathName = className.replace('.', '/').concat(".class");
+        if (prependPath.length() > 0) {
+            pathName = prependPath + "/" + pathName;
+        }
+        writeToDisk(zos, pathName, new ByteArrayInputStream(bytecode));
+    }
+
+    private static void writeToDisk(ZipOutputStream zos, String pathName, InputStream is) throws Exception {
+        if (DEBUG) {
+            System.out.println("ClassFileInstaller: Writing " + pathName);
+        }
+        if (zos != null) {
+            ZipEntry ze = new ZipEntry(pathName);
+            zos.putNextEntry(ze);
+            byte[] buf = new byte[1024];
+            int len;
+            while ((len = is.read(buf))>0){
+                zos.write(buf, 0, len);
+            }
+        } else {
             // Create the class file's package directory
             Path p = Paths.get(pathName);
             if (pathName.contains("/")) {
@@ -51,5 +252,6 @@ public class ClassFileInstaller {
             // Create the class file
             Files.copy(is, p, StandardCopyOption.REPLACE_EXISTING);
         }
+        is.close();
     }
 }

test/testlibrary/com/oracle/java/testlibrary/Common.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.oracle.java.testlibrary;
+
+/*
+ * Methods and definitions common to docker tests container in this directory
+ */
+
+import java.io.File;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import com.oracle.java.testlibrary.DockerTestUtils;
+import com.oracle.java.testlibrary.DockerRunOptions;
+import com.oracle.java.testlibrary.Utils;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+
+
+public class Common {
+    public static final String imageNameAndTag = "jdk-internal:test";
+
+    public static String imageName(String suffix) {
+        return imageNameAndTag + "-" + suffix;
+    }
+
+    public static void prepareWhiteBox() throws Exception {
+        Path whiteboxPath = Paths.get(Utils.TEST_CLASSES, "whitebox.jar");
+        if( !Files.exists(whiteboxPath) ) {
+            Files.copy(Paths.get(new File("whitebox.jar").getAbsolutePath()),
+                   Paths.get(Utils.TEST_CLASSES, "whitebox.jar"));
+        }
+    }
+
+    // create simple commonly used options
+    public static DockerRunOptions newOpts(String imageNameAndTag) {
+        return new DockerRunOptions(imageNameAndTag, "/jdk/bin/java", "-version")
+            .addJavaOpts("-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintContainerInfo");
+    }
+
+
+    // create commonly used options with class to be launched inside container
+    public static DockerRunOptions newOpts(String imageNameAndTag, String testClass) {
+        DockerRunOptions opts =
+            new DockerRunOptions(imageNameAndTag, "/jdk/bin/java", testClass);
+       opts.addDockerOpts("--volume", Utils.TEST_CLASSES + ":/test-classes/");
+        opts.addJavaOpts("-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintContainerInfo", "-cp", "/test-classes/");
+        return opts;
+    }
+
+    public static DockerRunOptions addWhiteBoxOpts(DockerRunOptions opts) {
+        opts.addJavaOpts("-Xbootclasspath/a:/test-classes/whitebox.jar",
+                         "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI");
+        return opts;
+    }
+
+    // most common type of run and checks
+    public static OutputAnalyzer run(DockerRunOptions opts) throws Exception {
+        return DockerTestUtils.dockerRunJava(opts)
+            .shouldHaveExitValue(0).shouldContain("Initializing Container Support");
+    }
+
+
+    // log beginning of a test case
+    public static void logNewTestCase(String msg) {
+        System.out.println("========== NEW TEST CASE:      " + msg);
+    }
+
+}

test/testlibrary/com/oracle/java/testlibrary/DockerRunOptions.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.oracle.java.testlibrary;
+
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+// This class represents options for running java inside docker containers
+// in test environment.
+public class DockerRunOptions {
+    public String imageNameAndTag;
+    public ArrayList<String> dockerOpts = new ArrayList<String>();
+    public String command;    // normally a full path to java
+    public ArrayList<String> javaOpts = new ArrayList<String>();
+    public String classToRun;  // class or "-version"
+    public ArrayList<String> classParams = new ArrayList<String>();
+
+    public boolean tty = true;
+    public boolean removeContainerAfterUse = true;
+    public boolean appendTestJavaOptions = true;
+    public boolean retainChildStdout = false;
+
+    /**
+     * Convenience constructor for most common use cases in testing.
+     * @param imageNameAndTag  a string representing name and tag for the
+     *        docker image to run, as "name:tag"
+     * @param javaCmd  a java command to run (e.g. /jdk/bin/java)
+     * @param classToRun  a class to run, or "-version"
+     * @param javaOpts  java options to use
+     *
+     * @return Default docker run options
+     */
+    public DockerRunOptions(String imageNameAndTag, String javaCmd,
+                            String classToRun, String... javaOpts) {
+        this.imageNameAndTag = imageNameAndTag;
+        this.command = javaCmd;
+        this.classToRun = classToRun;
+        this.addJavaOpts(javaOpts);
+    }
+
+    public DockerRunOptions addDockerOpts(String... opts) {
+        Collections.addAll(dockerOpts, opts);
+        return this;
+    }
+
+    public DockerRunOptions addJavaOpts(String... opts) {
+        Collections.addAll(javaOpts, opts);
+        return this;
+    }
+
+}

test/testlibrary/com/oracle/java/testlibrary/DockerTestUtils.java

+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.oracle.java.testlibrary;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.FileVisitResult;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.StandardCopyOption;
+import java.nio.file.attribute.BasicFileAttributes;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import com.oracle.java.testlibrary.Utils;
+import com.oracle.java.testlibrary.Platform;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.ProcessTools;
+
+public class DockerTestUtils {
+    private static final String FS = File.separator;
+    private static boolean isDockerEngineAvailable = false;
+    private static boolean wasDockerEngineChecked = false;
+
+    // Diagnostics: set to true to enable more diagnostic info
+    private static final boolean DEBUG = false;
+
+    /**
+     * Optimized check of whether the docker engine is available in a given
+     * environment. Checks only once, then remembers the result in a singleton.
+     *
+     * @return true if docker engine is available
+     * @throws Exception
+     */
+    public static boolean isDockerEngineAvailable() throws Exception {
+        if (wasDockerEngineChecked)
+            return isDockerEngineAvailable;
+
+        isDockerEngineAvailable = isDockerEngineAvailableCheck();
+        wasDockerEngineChecked = true;
+        return isDockerEngineAvailable;
+    }
+
+
+    /**
+     * Convenience method, will check if docker engine is available and usable;
+     * will print the appropriate message when not available.
+     *
+     * @return true if docker engine is available
+     * @throws Exception
+     */
+    public static boolean canTestDocker() throws Exception {
+        if (isDockerEngineAvailable()) {
+            return true;
+        } else {
+            System.out.println("Docker engine is not available on this system");
+            System.out.println("This test is SKIPPED");
+            return false;
+        }
+    }
+
+
+    /**
+     * Simple check - is docker engine available, accessible and usable.
+     * Run basic docker command: 'docker ps' - list docker instances.
+     * If docker engine is available and accesible then true is returned
+     * and we can proceed with testing docker.
+     *
+     * @return true if docker engine is available and usable
+     * @throws Exception
+     */
+    private static boolean isDockerEngineAvailableCheck() throws Exception {
+        try {
+            execute("docker", "ps")
+                .shouldHaveExitValue(0)
+                .shouldContain("CONTAINER")
+                .shouldContain("IMAGE");
+        } catch (Exception e) {
+            return false;
+        }
+        return true;
+    }
+
+
+    /**
+     * Build a docker image that contains JDK under test.
+     * The jdk will be placed under the "/jdk/" folder inside the docker file system.
+     *
+     * @param imageName     name of the image to be created, including version tag
+     * @param dockerfile    name of the dockerfile residing in the test source;
+     *                      we check for a platform specific dockerfile as well
+     *                      and use this one in case it exists
+     * @param buildDirName  name of the docker build/staging directory, which will
+     *                      be created in the jtreg's scratch folder
+     * @throws Exception
+     */
+    public static void
+        buildJdkDockerImage(String imageName, String dockerfile, String buildDirName)
+            throws Exception {
+        Path buildDir = Paths.get(".", buildDirName);
+        if (Files.exists(buildDir)) {
+            throw new RuntimeException("The docker build directory already exists: " + buildDir);
+        }
+        // check for the existance of a platform specific docker file as well
+        String platformSpecificDockerfile = dockerfile + "-" + Platform.getOsArch();
+        if (Files.exists(Paths.get(Utils.TEST_SRC, platformSpecificDockerfile))) {
+          dockerfile = platformSpecificDockerfile;
+        }
+
+        Path jdkSrcDir = Paths.get(Utils.TEST_JDK);
+        Path jdkDstDir = buildDir.resolve("jdk");
+
+        Files.createDirectories(jdkDstDir);
+
+        // Copy JDK-under-test tree to the docker build directory.
+        // This step is required for building a docker image.
+        Files.walkFileTree(jdkSrcDir, new CopyFileVisitor(jdkSrcDir, jdkDstDir));
+        buildDockerImage(imageName, Paths.get(Utils.TEST_SRC, dockerfile), buildDir);
+    }
+
+
+    /**
+     * Build a docker image based on given docker file and docker build directory.
+     *
+     * @param imageName  name of the image to be created, including version tag
+     * @param dockerfile  path to the Dockerfile to be used for building the docker
+     *        image. The specified dockerfile will be copied to the docker build
+     *        directory as 'Dockerfile'
+     * @param buildDir  build directory; it should already contain all the content
+     *        needed to build the docker image.
+     * @throws Exception
+     */
+    public static void
+        buildDockerImage(String imageName, Path dockerfile, Path buildDir) throws Exception {
+        // Copy docker file to the build dir
+        Files.copy(dockerfile, buildDir.resolve("Dockerfile"));
+
+        // Build the docker
+        execute("docker", "build", "--no-cache", "--tag", imageName, buildDir.toString())
+            .shouldHaveExitValue(0)
+            .shouldContain("Successfully built");
+    }
+
+
+    /**
+     * Run Java inside the docker image with specified parameters and options.
+     *
+     * @param DockerRunOptions optins for running docker
+     *
+     * @return output of the run command
+     * @throws Exception
+     */
+    public static OutputAnalyzer dockerRunJava(DockerRunOptions opts) throws Exception {
+        ArrayList<String> cmd = new ArrayList<>();
+
+        cmd.add("docker");
+        cmd.add("run");
+        if (opts.tty)
+            cmd.add("--tty=true");
+        if (opts.removeContainerAfterUse)
+            cmd.add("--rm");
+
+        cmd.addAll(opts.dockerOpts);
+        cmd.add(opts.imageNameAndTag);
+        cmd.add(opts.command);
+
+        cmd.addAll(opts.javaOpts);
+        if (opts.appendTestJavaOptions) {
+            Collections.addAll(cmd, Utils.getTestJavaOpts());
+        }
+
+        cmd.add(opts.classToRun);
+        cmd.addAll(opts.classParams);
+        return execute(cmd);
+    }
+
+
+     /**
+     * Remove docker image
+     *
+     * @param DockerRunOptions optins for running docker
+     * @return output of the command
+     * @throws Exception
+     */
+    public static OutputAnalyzer removeDockerImage(String imageNameAndTag) throws Exception {
+        return execute("docker", "rmi", "--force", imageNameAndTag);
+    }
+
+
+
+    /**
+     * Convenience method - express command as sequence of strings
+     *
+     * @param command to execute
+     * @return The output from the process
+     * @throws Exception
+     */
+    public static OutputAnalyzer execute(List<String> command) throws Exception {
+        return execute(command.toArray(new String[command.size()]));
+    }
+
+
+    /**
+     * Execute a specified command in a process, report diagnostic info.
+     *
+     * @param command to be executed
+     * @return The output from the process
+     * @throws Exception
+     */
+    public static OutputAnalyzer execute(String... command) throws Exception {
+
+        ProcessBuilder pb = new ProcessBuilder(command);
+        System.out.println("[COMMAND]\n" + Utils.getCommandLine(pb));
+
+        long started = System.currentTimeMillis();
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+
+        System.out.println("[ELAPSED: " + (System.currentTimeMillis() - started) + " ms]");
+        System.out.println("[STDERR]\n" + output.getStderr());
+        System.out.println("[STDOUT]\n" + output.getStdout());
+
+        return output;
+    }
+
+
+    private static class CopyFileVisitor extends SimpleFileVisitor<Path> {
+        private final Path src;
+        private final Path dst;
+
+        public CopyFileVisitor(Path src, Path dst) {
+            this.src = src;
+            this.dst = dst;
+        }
+
+
+        @Override
+        public FileVisitResult preVisitDirectory(Path file,
+                BasicFileAttributes attrs) throws IOException {
+            Path dstDir = dst.resolve(src.relativize(file));
+            if (!dstDir.toFile().exists()) {
+                Files.createDirectories(dstDir);
+            }
+            return FileVisitResult.CONTINUE;
+        }
+
+
+        @Override
+        public FileVisitResult visitFile(Path file,
+                BasicFileAttributes attrs) throws IOException {
+            if (!file.toFile().isFile()) {
+                return FileVisitResult.CONTINUE;
+            }
+            Path dstFile = dst.resolve(src.relativize(file));
+            Files.copy(file, dstFile, StandardCopyOption.COPY_ATTRIBUTES);
+            return FileVisitResult.CONTINUE;
+        }
+    }
+}

test/testlibrary/com/oracle/java/testlibrary/Platform.java

 /*
- * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -32,7 +32,7 @@ public class Platform {
     private static final String dataModel   = System.getProperty("sun.arch.data.model");
     private static final String vmVersion   = System.getProperty("java.vm.version");
     private static final String osArch      = System.getProperty("os.arch");
-    private static final String vmName      = System.getProperty("java.vm.name");
+    public static final String vmName      = System.getProperty("java.vm.name");
     private static final String userName    = System.getProperty("user.name");
 
     public static boolean isClient() {

test/testlibrary/com/oracle/java/testlibrary/Utils.java

 /*
- * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -61,6 +61,15 @@ public final class Utils {
      */
     public static final String JAVA_OPTIONS = System.getProperty("test.java.opts", "").trim();
 
+    public static final String TEST_JDK = System.getProperty("test.jdk");
+
+    public static final String COMPILE_JDK= System.getProperty("compile.jdk", TEST_JDK);
+
+    public static final String TEST_SRC = System.getProperty("test.src", "").trim();
+
+    public static final String TEST_CLASSES = System.getProperty("test.classes", ".");
+
+
     private static Unsafe unsafe = null;
 
     /**

test/testlibrary/whitebox/sun/hotspot/WhiteBox.java

@@ -238,4 +238,9 @@ public class WhiteBox {
 
   // Returns true on linux if library has the noexecstack flag set.
   public native boolean checkLibSpecifiesNoexecstack(String libfilename);
+
+  // Container testing
+  public native boolean isContainerized();
+  public native void printOsInfo();
+
 }