Merge

agent/src/share/classes/sun/jvm/hotspot/HelloWorld.java

 /*
- * Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2011, 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
@@ -55,7 +55,7 @@ public class HelloWorld {
     synchronized(lock) {
       if (useMethodInvoke) {
         try {
-          Method method = HelloWorld.class.getMethod("e", null);
+          Method method = HelloWorld.class.getMethod("e");
           Integer result = (Integer) method.invoke(null, new Object[0]);
           return result.intValue();
         }

agent/src/share/classes/sun/jvm/hotspot/jdi/ByteValueImpl.java

 /*
- * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -52,12 +52,10 @@ public class ByteValueImpl extends PrimitiveValueImpl
         return intValue();
     }
 
-    public int compareTo(Object obj) {
-        byte other = ((ByteValue)obj).value();
-        return value() - other;
+    public int compareTo(ByteValue byteVal) {
+        return value() - byteVal.value();
     }
 
-
     public Type type() {
         return vm.theByteType();
     }

agent/src/share/classes/sun/jvm/hotspot/jdi/CharValueImpl.java

 /*
- * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -52,9 +52,8 @@ public class CharValueImpl extends PrimitiveValueImpl
         return intValue();
     }
 
-    public int compareTo(Object obj) {
-        char other = ((CharValue)obj).value();
-        return value() - other;
+    public int compareTo(CharValue charVal) {
+        return value() - charVal.value();
     }
 
     public Type type() {

agent/src/share/classes/sun/jvm/hotspot/jdi/ConnectorImpl.java

 /*
- * Copyright (c) 2002, 2004, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -186,7 +186,7 @@ abstract class ConnectorImpl implements Connector {
         // assert isVMVersionMismatch(throwable), "not a VMVersionMismatch"
         Class expClass = throwable.getClass();
         Method targetVersionMethod = expClass.getMethod("getTargetVersion", new Class[0]);
-        return (String) targetVersionMethod.invoke(throwable, null);
+        return (String) targetVersionMethod.invoke(throwable);
     }
 
     /** If the causal chain has a sun.jvm.hotspot.runtime.VMVersionMismatchException,

agent/src/share/classes/sun/jvm/hotspot/jdi/DoubleValueImpl.java

 /*
- * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -45,8 +45,8 @@ public class DoubleValueImpl extends PrimitiveValueImpl
         }
     }
 
-    public int compareTo(Object obj) {
-        double other = ((DoubleValue)obj).value();
+    public int compareTo(DoubleValue doubleVal) {
+        double other = doubleVal.value();
         if (value() < other) {
             return -1;
         } else if (value() == other) {

agent/src/share/classes/sun/jvm/hotspot/jdi/FieldImpl.java

@@ -145,8 +145,7 @@ public class FieldImpl extends TypeComponentImpl implements Field {
     }
 
     // From interface Comparable
-    public int compareTo(Object object) {
-        Field field = (Field)object;
+    public int compareTo(Field field) {
         ReferenceTypeImpl declaringType = (ReferenceTypeImpl)declaringType();
         int rc = declaringType.compareTo(field.declaringType());
         if (rc == 0) {

agent/src/share/classes/sun/jvm/hotspot/jdi/FloatValueImpl.java

 /*
- * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -52,8 +52,8 @@ public class FloatValueImpl extends PrimitiveValueImpl
         return intValue();
     }
 
-    public int compareTo(Object obj) {
-        float other = ((FloatValue)obj).value();
+    public int compareTo(FloatValue floatVal) {
+        float other = floatVal.value();
         if (value() < other) {
             return -1;
         } else if (value() == other) {

agent/src/share/classes/sun/jvm/hotspot/jdi/IntegerValueImpl.java

 /*
- * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -52,9 +52,8 @@ public class IntegerValueImpl extends PrimitiveValueImpl
         return intValue();
     }
 
-    public int compareTo(Object obj) {
-        int other = ((IntegerValue)obj).value();
-        return value() - other;
+    public int compareTo(IntegerValue integerVal) {
+        return value() - integerVal.value();
     }
 
     public Type type() {

agent/src/share/classes/sun/jvm/hotspot/jdi/LocalVariableImpl.java

 /*
- * Copyright (c) 2002, 2004, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -67,8 +67,8 @@ public class LocalVariableImpl extends MirrorImpl
         return (int)method.hashCode() + slot();
     }
 
-    public int compareTo(Object object) {
-        LocalVariableImpl other = (LocalVariableImpl)object;
+    public int compareTo(LocalVariable localVar) {
+        LocalVariableImpl other = (LocalVariableImpl) localVar;
         int rc = method.compareTo(other.method);
         if (rc == 0) {
             rc = slot() - other.slot();

agent/src/share/classes/sun/jvm/hotspot/jdi/LocationImpl.java

 /*
- * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -78,8 +78,7 @@ public class LocationImpl extends MirrorImpl implements Location {
         return method().hashCode() + (int)codeIndex();
     }
 
-    public int compareTo(Object object) {
-        LocationImpl other = (LocationImpl)object;
+    public int compareTo(Location other) {
         int rc = method().compareTo(other.method());
         if (rc == 0) {
             long diff = codeIndex() - other.codeIndex();

agent/src/share/classes/sun/jvm/hotspot/jdi/LongValueImpl.java

 /*
- * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -52,8 +52,8 @@ public class LongValueImpl extends PrimitiveValueImpl
         return intValue();
     }
 
-    public int compareTo(Object obj) {
-        long other = ((LongValue)obj).value();
+    public int compareTo(LongValue longVal) {
+        long other = longVal.value();
         if (value() < other) {
             return -1;
         } else if (value() == other) {

agent/src/share/classes/sun/jvm/hotspot/jdi/MethodImpl.java

 /*
- * Copyright (c) 2002, 2005, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -200,8 +200,7 @@ public abstract class MethodImpl extends TypeComponentImpl implements Method {
     }
 
     // From interface Comparable
-    public int compareTo(Object object) {
-      Method method = (Method)object;
+    public int compareTo(Method method) {
         ReferenceTypeImpl declaringType = (ReferenceTypeImpl)declaringType();
          int rc = declaringType.compareTo(method.declaringType());
          if (rc == 0) {

agent/src/share/classes/sun/jvm/hotspot/jdi/ReferenceTypeImpl.java

 /*
- * Copyright (c) 2002, 2005, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -99,7 +99,7 @@ implements ReferenceType {
         return saKlass.hashCode();
     }
 
-    public int compareTo(Object object) {
+    public int compareTo(ReferenceType refType) {
         /*
          * Note that it is critical that compareTo() == 0
          * implies that equals() == true. Otherwise, TreeSet
@@ -108,7 +108,7 @@ implements ReferenceType {
          * (Classes of the same name loaded by different class loaders
          * or in different VMs must not return 0).
          */
-        ReferenceTypeImpl other = (ReferenceTypeImpl)object;
+        ReferenceTypeImpl other = (ReferenceTypeImpl)refType;
         int comp = name().compareTo(other.name());
         if (comp == 0) {
             Oop rf1 = ref();

agent/src/share/classes/sun/jvm/hotspot/jdi/ShortValueImpl.java

 /*
- * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -52,9 +52,8 @@ public class ShortValueImpl extends PrimitiveValueImpl
         return intValue();
     }
 
-    public int compareTo(Object obj) {
-        short other = ((ShortValue)obj).value();
-        return value() - other;
+    public int compareTo(ShortValue shortVal) {
+        return value() - shortVal.value();
     }
 
     public Type type() {

agent/src/share/classes/sun/jvm/hotspot/jdi/VirtualMachineImpl.java

 /*
- * Copyright (c) 2002, 2006, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, 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
@@ -798,12 +798,11 @@ public class VirtualMachineImpl extends MirrorImpl implements PathSearchingVirtu
     }
 
     public String description() {
-        String[] versionParts = {"" + vmmgr.majorInterfaceVersion(),
-                                 "" + vmmgr.minorInterfaceVersion(),
-                                 name()};
         return java.text.MessageFormat.format(java.util.ResourceBundle.
                                               getBundle("com.sun.tools.jdi.resources.jdi").getString("version_format"),
-                                              versionParts);
+                                              "" + vmmgr.majorInterfaceVersion(),
+                                              "" + vmmgr.minorInterfaceVersion(),
+                                              name());
     }
 
     public String version() {

make/linux/makefiles/sa.make

 #
-# Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2003, 2011, 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
@@ -97,8 +97,8 @@ $(GENERATED)/sa-jdi.jar: $(AGENT_FILES1) $(AGENT_FILES2)
 	$(foreach file,$(AGENT_FILES1),$(shell echo $(file) >> $(AGENT_FILES1_LIST)))
 	$(foreach file,$(AGENT_FILES2),$(shell echo $(file) >> $(AGENT_FILES2_LIST)))
 	
-	$(QUIETLY) $(REMOTE) $(COMPILE.JAVAC) -source 1.4 -target 1.4 -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) @$(AGENT_FILES1_LIST)
-	$(QUIETLY) $(REMOTE) $(COMPILE.JAVAC) -source 1.4 -target 1.4 -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) @$(AGENT_FILES2_LIST)
+	$(QUIETLY) $(REMOTE) $(COMPILE.JAVAC) -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) @$(AGENT_FILES1_LIST)
+	$(QUIETLY) $(REMOTE) $(COMPILE.JAVAC) -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) @$(AGENT_FILES2_LIST)
 	
 	$(QUIETLY) $(REMOTE) $(COMPILE.RMIC)  -classpath $(SA_CLASSDIR) -d $(SA_CLASSDIR) sun.jvm.hotspot.debugger.remote.RemoteDebuggerServer
 	$(QUIETLY) echo "$(SA_BUILD_VERSION_PROP)" > $(SA_PROPERTIES)

make/linux/makefiles/vm.make

@@ -142,13 +142,15 @@ COMPILER2_PATHS += $(HS_COMMON_SRC)/share/vm/opto
 COMPILER2_PATHS += $(HS_COMMON_SRC)/share/vm/libadt
 COMPILER2_PATHS += $(GENERATED)/adfiles
 
+SHARK_PATHS := $(GAMMADIR)/src/share/vm/shark
+
 # Include dirs per type.
 Src_Dirs/CORE      := $(CORE_PATHS)
 Src_Dirs/COMPILER1 := $(CORE_PATHS) $(COMPILER1_PATHS)
 Src_Dirs/COMPILER2 := $(CORE_PATHS) $(COMPILER2_PATHS)
 Src_Dirs/TIERED    := $(CORE_PATHS) $(COMPILER1_PATHS) $(COMPILER2_PATHS)
 Src_Dirs/ZERO      := $(CORE_PATHS)
-Src_Dirs/SHARK     := $(CORE_PATHS)
+Src_Dirs/SHARK     := $(CORE_PATHS) $(SHARK_PATHS)
 Src_Dirs := $(Src_Dirs/$(TYPE))
 
 COMPILER2_SPECIFIC_FILES := opto libadt bcEscapeAnalyzer.cpp chaitin\* c2_\* runtime_\*

make/solaris/makefiles/sa.make

 #
-# Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2003, 2011, 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
@@ -88,8 +88,8 @@ $(GENERATED)/sa-jdi.jar: $(AGENT_FILES1) $(AGENT_FILES2)
 	$(foreach file,$(AGENT_FILES1),$(shell echo $(file) >> $(AGENT_FILES1_LIST)))
 	$(foreach file,$(AGENT_FILES2),$(shell echo $(file) >> $(AGENT_FILES2_LIST)))
 	
-	$(QUIETLY) $(COMPILE.JAVAC) -source 1.4 -target 1.4 -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) @$(AGENT_FILES1_LIST)
-	$(QUIETLY) $(COMPILE.JAVAC) -source 1.4 -target 1.4 -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) @$(AGENT_FILES2_LIST)
+	$(QUIETLY) $(COMPILE.JAVAC) -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) @$(AGENT_FILES1_LIST)
+	$(QUIETLY) $(COMPILE.JAVAC) -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) @$(AGENT_FILES2_LIST)
 	
 	$(QUIETLY) $(COMPILE.RMIC)  -classpath $(SA_CLASSDIR) -d $(SA_CLASSDIR) sun.jvm.hotspot.debugger.remote.RemoteDebuggerServer
 	$(QUIETLY) echo "$(SA_BUILD_VERSION_PROP)" > $(SA_PROPERTIES)

make/windows/makefiles/sa.make

 #
-# Copyright (c) 2003, 2009, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2003, 2011, 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
@@ -55,9 +55,9 @@ default::  $(GENERATED)\sa-jdi.jar
 $(GENERATED)\sa-jdi.jar: $(AGENT_FILES1:/=\) $(AGENT_FILES2:/=\)
 	@if not exist $(SA_CLASSDIR) mkdir $(SA_CLASSDIR)
 	@echo ...Building sa-jdi.jar
-	@echo ...$(COMPILE_JAVAC) -source 1.4 -target 1.4 -classpath $(SA_CLASSPATH) -d $(SA_CLASSDIR) ....
-	@$(COMPILE_JAVAC) -source 1.4 -target 1.4 -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) $(AGENT_FILES1:/=\)
-	@$(COMPILE_JAVAC) -source 1.4 -target 1.4 -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) $(AGENT_FILES2:/=\)
+	@echo ...$(COMPILE_JAVAC) -classpath $(SA_CLASSPATH) -d $(SA_CLASSDIR) ....
+	@$(COMPILE_JAVAC) -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) $(AGENT_FILES1:/=\)
+	@$(COMPILE_JAVAC) -classpath $(SA_CLASSPATH) -sourcepath $(AGENT_SRC_DIR) -d $(SA_CLASSDIR) $(AGENT_FILES2:/=\)
 	$(COMPILE_RMIC) -classpath $(SA_CLASSDIR) -d $(SA_CLASSDIR) sun.jvm.hotspot.debugger.remote.RemoteDebuggerServer
 	$(QUIETLY) echo $(SA_BUILD_VERSION_PROP)> $(SA_PROPERTIES)
 	$(QUIETLY) rm -f $(SA_CLASSDIR)/sun/jvm/hotspot/utilities/soql/sa.js

src/os/linux/vm/os_linux.cpp

@@ -2648,45 +2648,39 @@ bool os::uncommit_memory(char* addr, size_t size) {
 // writing thread stacks don't use growable mappings (i.e. those
 // creeated with MAP_GROWSDOWN), and aren't marked "[stack]", so this
 // only applies to the main thread.
-static bool
-get_stack_bounds(uintptr_t *bottom, uintptr_t *top)
-{
-  FILE *f = fopen("/proc/self/maps", "r");
-  if (f == NULL)
-    return false;
 
-  while (!feof(f)) {
-    size_t dummy;
-    char *str = NULL;
-    ssize_t len = getline(&str, &dummy, f);
-    if (len == -1) {
-      fclose(f);
-      return false;
-    }
+static
+bool get_stack_bounds(uintptr_t *bottom, uintptr_t *top) {
 
-    if (len > 0 && str[len-1] == '\n') {
-      str[len-1] = 0;
-      len--;
-    }
+  char buf[128];
+  int fd, sz;
+
+  if ((fd = ::open("/proc/self/maps", O_RDONLY)) < 0) {
+    return false;
+  }
 
-    static const char *stack_str = "[stack]";
-    if (len > (ssize_t)strlen(stack_str)
-       && (strcmp(str + len - strlen(stack_str), stack_str) == 0)) {
-      if (sscanf(str, "%" SCNxPTR "-%" SCNxPTR, bottom, top) == 2) {
-        uintptr_t sp = (uintptr_t)__builtin_frame_address(0);
-        if (sp >= *bottom && sp <= *top) {
-          free(str);
-          fclose(f);
-          return true;
+  const char kw[] = "[stack]";
+  const int kwlen = sizeof(kw)-1;
+
+  // Address part of /proc/self/maps couldn't be more than 128 bytes
+  while ((sz = os::get_line_chars(fd, buf, sizeof(buf))) > 0) {
+     if (sz > kwlen && ::memcmp(buf+sz-kwlen, kw, kwlen) == 0) {
+        // Extract addresses
+        if (sscanf(buf, "%" SCNxPTR "-%" SCNxPTR, bottom, top) == 2) {
+           uintptr_t sp = (uintptr_t) __builtin_frame_address(0);
+           if (sp >= *bottom && sp <= *top) {
+              ::close(fd);
+              return true;
+           }
         }
-      }
-    }
-    free(str);
+     }
   }
-  fclose(f);
+
+ ::close(fd);
   return false;
 }
 
+
 // If the (growable) stack mapping already extends beyond the point
 // where we're going to put our guard pages, truncate the mapping at
 // that point by munmap()ping it.  This ensures that when we later

src/share/tools/ProjectCreator/WinGammaPlatformVC10.java

@@ -497,6 +497,9 @@ class CompilerInterfaceVC10 extends CompilerInterface {
             addAttr(rv, "TargetMachine", "MachineX64");
         }
 
+        // We always want the /DEBUG option to get full symbol information in the pdb files
+        addAttr(rv, "GenerateDebugInformation", "true");
+
         return rv;
     }
 
@@ -504,8 +507,7 @@ class CompilerInterfaceVC10 extends CompilerInterface {
     Vector getDebugLinkerFlags() {
         Vector rv = new Vector();
 
-        // /DEBUG option
-        addAttr(rv, "GenerateDebugInformation", "true");
+        // Empty now that /DEBUG option is used by all configs
 
         return rv;
     }

src/share/vm/classfile/javaClasses.cpp

@@ -1431,32 +1431,41 @@ void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) {
       }
     }
 #ifdef ASSERT
-  assert(st_method() == method && st.bci() == bci,
-         "Wrong stack trace");
-  st.next();
-  // vframeStream::method isn't GC-safe so store off a copy
-  // of the methodOop in case we GC.
-  if (!st.at_end()) {
-    st_method = st.method();
-  }
+    assert(st_method() == method && st.bci() == bci,
+           "Wrong stack trace");
+    st.next();
+    // vframeStream::method isn't GC-safe so store off a copy
+    // of the methodOop in case we GC.
+    if (!st.at_end()) {
+      st_method = st.method();
+    }
 #endif
+
+    // the format of the stacktrace will be:
+    // - 1 or more fillInStackTrace frames for the exception class (skipped)
+    // - 0 or more <init> methods for the exception class (skipped)
+    // - rest of the stack
+
     if (!skip_fillInStackTrace_check) {
-      // check "fillInStackTrace" only once, so we negate the flag
-      // after the first time check.
-      skip_fillInStackTrace_check = true;
-      if (method->name() == vmSymbols::fillInStackTrace_name()) {
+      if ((method->name() == vmSymbols::fillInStackTrace_name() ||
+           method->name() == vmSymbols::fillInStackTrace0_name()) &&
+          throwable->is_a(method->method_holder())) {
         continue;
       }
+      else {
+        skip_fillInStackTrace_check = true; // gone past them all
+      }
     }
-    // skip <init> methods of the exceptions klass. If there is <init> methods
-    // that belongs to a superclass of the exception  we are going to skipping
-    // them in stack trace. This is simlar to classic VM.
     if (!skip_throwableInit_check) {
+      assert(skip_fillInStackTrace_check, "logic error in backtrace filtering");
+
+      // skip <init> methods of the exception class and superclasses
+      // This is simlar to classic VM.
       if (method->name() == vmSymbols::object_initializer_name() &&
           throwable->is_a(method->method_holder())) {
         continue;
       } else {
-        // if no "Throwable.init()" method found, we stop checking it next time.
+        // there are none or we've seen them all - either way stop checking
         skip_throwableInit_check = true;
       }
     }

src/share/vm/classfile/stackMapFrame.cpp

@@ -208,8 +208,10 @@ bool StackMapFrame::has_flag_match_exception(
   return true;
 }
 
-bool StackMapFrame::is_assignable_to(const StackMapFrame* target, TRAPS) const {
-  if (_max_locals != target->max_locals() || _stack_size != target->stack_size()) {
+bool StackMapFrame::is_assignable_to(
+    const StackMapFrame* target, bool is_exception_handler, TRAPS) const {
+  if (_max_locals != target->max_locals() ||
+      _stack_size != target->stack_size()) {
     return false;
   }
   // Only need to compare type elements up to target->locals() or target->stack().
@@ -222,7 +224,7 @@ bool StackMapFrame::is_assignable_to(const StackMapFrame* target, TRAPS) const {
   bool match_flags = (_flags | target->flags()) == target->flags();
 
   return match_locals && match_stack &&
-    (match_flags || has_flag_match_exception(target));
+    (match_flags || (is_exception_handler && has_flag_match_exception(target)));
 }
 
 VerificationType StackMapFrame::pop_stack_ex(VerificationType type, TRAPS) {

src/share/vm/classfile/stackMapFrame.hpp

@@ -134,7 +134,8 @@ class StackMapFrame : public ResourceObj {
   void copy_stack(const StackMapFrame* src);
 
   // Return true if this stack map frame is assignable to target.
-  bool is_assignable_to(const StackMapFrame* target, TRAPS) const;
+  bool is_assignable_to(const StackMapFrame* target,
+                        bool is_exception_handler, TRAPS) const;
 
   // Push type into stack type array.
   inline void push_stack(VerificationType type, TRAPS) {

src/share/vm/classfile/stackMapTable.cpp

@@ -98,10 +98,13 @@ bool StackMapTable::match_stackmap(
   bool result = true;
   StackMapFrame *stackmap_frame = _frame_array[frame_index];
   if (match) {
+    // when checking handler target, match == true && update == false
+    bool is_exception_handler = !update;
     // Has direct control flow from last instruction, need to match the two
     // frames.
     result = frame->is_assignable_to(
-      stackmap_frame, CHECK_VERIFY_(frame->verifier(), false));
+      stackmap_frame, is_exception_handler,
+      CHECK_VERIFY_(frame->verifier(), false));
   }
   if (update) {
     // Use the frame in stackmap table as current frame

src/share/vm/classfile/vmSymbols.hpp

@@ -301,6 +301,7 @@
   template(dispatch_name,                             "dispatch")                                 \
   template(getSystemClassLoader_name,                 "getSystemClassLoader")                     \
   template(fillInStackTrace_name,                     "fillInStackTrace")                         \
+  template(fillInStackTrace0_name,                    "fillInStackTrace0")                        \
   template(getCause_name,                             "getCause")                                 \
   template(initCause_name,                            "initCause")                                \
   template(setProperty_name,                          "setProperty")                              \

src/share/vm/runtime/arguments.cpp

@@ -59,7 +59,8 @@
 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp"
 #endif
 
-#define DEFAULT_VENDOR_URL_BUG "http://java.sun.com/webapps/bugreport/crash.jsp"
+// Note: This is a special bug reporting site for the JVM
+#define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp"
 #define DEFAULT_JAVA_LAUNCHER  "generic"
 
 char**  Arguments::_jvm_flags_array             = NULL;

src/share/vm/runtime/os.cpp

@@ -1291,3 +1291,41 @@ bool os::is_server_class_machine() {
   }
   return result;
 }
+
+// Read file line by line, if line is longer than bsize,
+// skip rest of line.
+int os::get_line_chars(int fd, char* buf, const size_t bsize){
+  size_t sz, i = 0;
+
+  // read until EOF, EOL or buf is full
+  while ((sz = (int) read(fd, &buf[i], 1)) == 1 && i < (bsize-1) && buf[i] != '\n') {
+     ++i;
+  }
+
+  if (buf[i] == '\n') {
+    // EOL reached so ignore EOL character and return
+
+    buf[i] = 0;
+    return (int) i;
+  }
+
+  buf[i+1] = 0;
+
+  if (sz != 1) {
+    // EOF reached. if we read chars before EOF return them and
+    // return EOF on next call otherwise return EOF
+
+    return (i == 0) ? -1 : (int) i;
+  }
+
+  // line is longer than size of buf, skip to EOL
+  int ch;
+  while (read(fd, &ch, 1) == 1 && ch != '\n') {
+    // Do nothing
+  }
+
+  // return initial part of line that fits in buf.
+  // If we reached EOF, it will be returned on next call.
+
+  return (int) i;
+}

src/share/vm/runtime/os.hpp

@@ -658,6 +658,10 @@ class os: AllStatic {
   // Hook for os specific jvm options that we don't want to abort on seeing
   static bool obsolete_option(const JavaVMOption *option);
 
+  // Read file line by line. If line is longer than bsize,
+  // rest of line is skipped. Returns number of bytes read or -1 on EOF
+  static int get_line_chars(int fd, char *buf, const size_t bsize);
+
   // Platform dependent stuff
 #ifdef TARGET_OS_FAMILY_linux
 # include "os_linux.hpp"

test/compiler/6795161/Test.java

 /*
- * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2009, 2011, 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
@@ -26,7 +26,7 @@
  * @test
  * @bug 6795161
  * @summary Escape analysis leads to data corruption
- * @run main/othervm -server -Xcomp -XX:CompileOnly=Test -XX:+DoEscapeAnalysis Test
+ * @run main/othervm -server  -XX:+IgnoreUnrecognizedVMOptions -Xcomp -XX:CompileOnly=Test -XX:+DoEscapeAnalysis Test
  */
 
 class Test_Class_1 {