qFULL PRODUCT VERSION :
# JRE version: 6.0_45-b06
# Java VM: Java HotSpot(TM) Client VM (20.45-b01 mixed mode windows-x86 )

# JRE version: 7.0_21-b11
# Java VM: Java HotSpot(TM) Client VM (23.21-b01 mixed mode windows-x86 )


FULL OS VERSION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
When debugging an application (in Eclipse), I get a coredump.
I could reduce the code to the given example (see Sourcecode).
It does not occur with Java 1.5, only 6 and 7.



THE PROBLEM WAS REPRODUCIBLE WITH -Xint FLAG: Yes

THE PROBLEM WAS REPRODUCIBLE WITH -server FLAG: Yes

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1) set a breakpoint on first line of main
2) use " step into " for step-wise code-execution


EXPECTED VERSUS ACTUAL BEHAVIOR :
step into Java-Sourcecode
ERROR MESSAGES/STACK TRACES THAT OCCUR :
coredumps:
================= java 6:
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d8fd772, pid=5860, tid=5504
#
# JRE version: 6.0_45-b06
# Java VM: Java HotSpot(TM) Client VM (20.45-b01 mixed mode windows-x86 )
# Problematic frame:
# V [jvm.dll+0x1d772]
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#

--------------- T H R E A D ---------------

Current thread (0x02435800): JavaThread " JDWP Transport Listener: dt_socket " daemon [_thread_in_vm, id=5504, stack(0x189d0000,0x18a20000)]

siginfo: ExceptionCode=0xc0000005, reading address 0x00000004

Registers:
EAX=0x00000000, EBX=0x02435800, ECX=0x00000000, EDX=0x00000000
ESP=0x18a1fc54, EBP=0x18a1fc58, ESI=0x00000010, EDI=0x044d6f78
EIP=0x6d8fd772, EFLAGS=0x00010246

  Top of Stack: (sp=0x18a1fc54)
0x18a1fc54: 02435928 18a1fc80 6d973c52 044d6f78
0x18a1fc64: 6d44e10c 02435928 6d44e124 02435800
0x18a1fc74: 00000000 02435928 18a1fe54 6d44e94c
0x18a1fc84: 6d4362bd 02435928 024301a0 00000000
0x18a1fc94: 18a1fcb8 18a1fe54 6d452b0a 18a1fe54
0x18a1fca4: 024301a0 18a1fe24 6d43ba32 18a1fe24
0x18a1fcb4: 18a1fcc4 6d44e840 6d2b4014 6d452be0
0x18a1fcc4: 18a1fcf4 0000012c 18a1fcd0 00000000

Instructions: (pc=0x6d8fd772)
0x6d8fd752: ec 8b 45 08 8b 0d bc 37 b5 6d 8b 15 b8 37 b5 6d
0x6d8fd762: 8b 0c 01 8b 14 02 56 8b 35 b4 37 b5 6d 8b 04 06
0x6d8fd772: 8b 71 04 8b 76 0c 81 e6 00 ff 00 00 81 fe 00 05
0x6d8fd782: 00 00 5e 75 20 85 c0 75 0e 33 c9 50 51 e8 dc 55


Register to memory mapping:

EAX=0x00000000 is an unknown value
EBX=0x02435800 is a thread
ECX=0x00000000 is an unknown value
EDX=0x00000000 is an unknown value
ESP=0x18a1fc54 is pointing into the stack for thread: 0x02435800
EBP=0x18a1fc58 is pointing into the stack for thread: 0x02435800
ESI=0x00000010 is an unknown value
EDI=0x044d6f78 is an oop
java.lang.String
 - klass: 'java/lang/String'


Stack: [0x189d0000,0x18a20000], sp=0x18a1fc54, free space=319k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0x1d772]
V [jvm.dll+0x93c52]


--------------- P R O C E S S ---------------

Java Threads: ( => current thread )
  0x0244b800 JavaThread " Low Memory Detector " daemon [_thread_blocked, id=5156, stack(0x18d10000,0x18d60000)]
  0x02448c00 JavaThread " C1 CompilerThread0 " daemon [_thread_blocked, id=4632, stack(0x18c10000,0x18c60000)]
  0x0243a800 JavaThread " JDWP Command Reader " daemon [_thread_in_native, id=4880, stack(0x18b80000,0x18bd0000)]
  0x02438c00 JavaThread " JDWP Event Helper Thread " daemon [_thread_blocked, id=4896, stack(0x18ab0000,0x18b00000)]
=>0x02435800 JavaThread " JDWP Transport Listener: dt_socket " daemon [_thread_in_vm, id=5504, stack(0x189d0000,0x18a20000)]
  0x02429800 JavaThread " Attach Listener " daemon [_thread_blocked, id=5048, stack(0x18820000,0x18870000)]
  0x02426800 JavaThread " Signal Dispatcher " daemon [_thread_blocked, id=5668, stack(0x18790000,0x187e0000)]
  0x023fb000 JavaThread " Finalizer " daemon [_thread_blocked, id=6124, stack(0x18700000,0x18750000)]
  0x023f6400 JavaThread " Reference Handler " daemon [_thread_blocked, id=4392, stack(0x18670000,0x186c0000)]
  0x0248a000 JavaThread " main " [_thread_blocked, id=5792, stack(0x00280000,0x002d0000)]

Other Threads:
  0x023f3000 VMThread [stack: 0x185e0000,0x18630000] [id=5296]
  0x18e88800 WatcherThread [stack: 0x18da0000,0x18df0000] [id=4588]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
 def new generation total 4928K, used 369K [0x04490000, 0x049e0000, 0x099e0000)
  eden space 4416K, 8% used [0x04490000, 0x044ec5f8, 0x048e0000)
  from space 512K, 0% used [0x048e0000, 0x048e0000, 0x04960000)
  to space 512K, 0% used [0x04960000, 0x04960000, 0x049e0000)
 tenured generation total 10944K, used 0K [0x099e0000, 0x0a490000, 0x14490000)
   the space 10944K, 0% used [0x099e0000, 0x099e0000, 0x099e0200, 0x0a490000)
 compacting perm gen total 12288K, used 1763K [0x14490000, 0x15090000, 0x18490000)
   the space 12288K, 14% used [0x14490000, 0x14648ce0, 0x14648e00, 0x15090000)
No shared spaces configured.

Code Cache [0x02490000, 0x02500000, 0x04490000)
 total_blobs=117 nmethods=3 adapters=59 free_code_cache=33108992 largest_free_block=0

Dynamic libraries:
0x00400000 - 0x00425000 C:\BSPrograms\Java\JDK\jdk1.6.0_latest\bin\javaw.exe
0x77590000 - 0x77710000 C:\Windows\SysWOW64
tdll.dll
0x74f40000 - 0x75050000 C:\Windows\syswow64\kernel32.dll
0x76a60000 - 0x76aa7000 C:\Windows\syswow64\KERNELBASE.dll
0x74d30000 - 0x74dd0000 C:\Windows\syswow64\ADVAPI32.dll
0x75400000 - 0x754ac000 C:\Windows\syswow64\msvcrt.dll
0x758c0000 - 0x758d9000 C:\Windows\SysWOW64\sechost.dll
0x757d0000 - 0x758c0000 C:\Windows\syswow64\RPCRT4.dll
0x74c70000 - 0x74cd0000 C:\Windows\syswow64\SspiCli.dll
0x74c60000 - 0x74c6c000 C:\Windows\syswow64\CRYPTBASE.dll
0x75050000 - 0x75150000 C:\Windows\syswow64\USER32.dll
0x76c40000 - 0x76cd0000 C:\Windows\syswow64\GDI32.dll
0x75b50000 - 0x75b5a000 C:\Windows\syswow64\LPK.dll
0x75360000 - 0x753fd000 C:\Windows\syswow64\USP10.dll
0x75d20000 - 0x75d80000 C:\Windows\system32\IMM32.DLL
0x74dd0000 - 0x74e9c000 C:\Windows\syswow64\MSCTF.dll
0x7c340000 - 0x7c396000 C:\BSPrograms\Java\JDK\jdk1.6.0_latest\jre\bin\msvcr71.dll
0x6d8e0000 - 0x6db90000 C:\BSPrograms\Java\JDK\jdk1.6.0_latest\jre\bin\client\jvm.dll
0x73af0000 - 0x73b22000 C:\Windows\system32\WINMM.dll
0x72f20000 - 0x72f6c000 C:\Windows\system32\apphelp.dll
0x6d890000 - 0x6d89c000 C:\BSPrograms\Java\JDK\jdk1.6.0_latest\jre\bin\verify.dll
0x6d3e0000 - 0x6d3ff000 C:\BSPrograms\Java\JDK\jdk1.6.0_latest\jre\bin\java.dll
0x6d430000 - 0x6d459000 C:\BSPrograms\Java\JDK\jdk1.6.0_latest\jre\bin\jdwp.dll
0x6d750000 - 0x6d756000 C:\BSPrograms\Java\JDK\jdk1.6.0_latest\jre\bin
pt.dll
0x6d8d0000 - 0x6d8df000 C:\BSPrograms\Java\JDK\jdk1.6.0_latest\jre\bin\zip.dll
0x6d2b0000 - 0x6d2b7000 C:\BSPrograms\Java\JDK\jdk1.6.0_latest\jre\bin\dt_socket.dll
0x75320000 - 0x75355000 C:\Windows\syswow64\WS2_32.dll
0x76ad0000 - 0x76ad6000 C:\Windows\syswow64\NSI.dll
0x70b80000 - 0x70b90000 C:\Windows\system32\NLAapi.dll
0x665d0000 - 0x665e0000 C:\Windows\system32
apinsp.dll
0x665b0000 - 0x665c2000 C:\Windows\system32\pnrpnsp.dll
0x707a0000 - 0x707dc000 C:\Windows\System32\mswsock.dll
0x733d0000 - 0x73414000 C:\Windows\system32\DNSAPI.dll
0x665a0000 - 0x665a8000 C:\Windows\System32\winrnr.dll
0x73680000 - 0x7369c000 C:\Windows\system32\IPHLPAPI.DLL
0x73670000 - 0x73677000 C:\Windows\system32\WINNSI.DLL
0x70720000 - 0x70758000 C:\Windows\System32\fwpuclnt.dll
0x70760000 - 0x70766000 C:\Windows\system32\rasadhlp.dll
0x70790000 - 0x70795000 C:\Windows\System32\wshtcpip.dll
0x75d10000 - 0x75d15000 C:\Windows\system32\PSAPI.DLL

VM Arguments:
jvm_args: -agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:61904 -Dfile.encoding=Cp1252
java_command: CoreDump
Launcher Type: SUN_STANDARD

Environment Variables:
JAVA_HOME=C:\BSPrograms\Java\JDK\jdk1.6.0_latest
PATH=C:\BSPrograms\Java\JDK\jdk1.6.0_latest\jre\bin;C:\BSPrograms\Java\JDK\jdk1.6.0_latest\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0
USERNAME=kurtabli
OS=Windows_NT
PROCESSOR_IDENTIFIER=AMD64 Family 21 Model 1 Stepping 2, AuthenticAMD



--------------- S Y S T E M ---------------

OS: Windows 7 , 64 bit Build 7601 Service Pack 1

CPU:total 6 (6 cores per cpu, 1 threads per core) family 21 model 1 stepping 2, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, mmxext, 3dnowpref, lzcnt, sse4a

Memory: 4k page, physical 8332648k(5292904k free), swap 16663436k(14134956k free)

vm_info: Java HotSpot(TM) Client VM (20.45-b01) for windows-x86 JRE (1.6.0_45-b06), built on Mar 26 2013 13:40:03 by " java_re " with MS VC++ 7.1 (VS2003)

time: Tue Jul 30 12:45:15 2013
elapsed time: 6 seconds



================= java 7:
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x5d6d0c10, pid=5496, tid=5824
#
# JRE version: 7.0_21-b11
# Java VM: Java HotSpot(TM) Client VM (23.21-b01 mixed mode windows-x86 )
# Problematic frame:
# V [jvm.dll+0x20c10]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#

--------------- T H R E A D ---------------

Current thread (0x185e4000): JavaThread " JDWP Transport Listener: dt_socket " daemon [_thread_in_vm, id=5824, stack(0x19230000,0x19280000)]

siginfo: ExceptionCode=0xc0000005, reading address 0x00000008

Registers:
EAX=0x045c62e0, EBX=0x045c62e0, ECX=0x00000000, EDX=0x00000000
ESP=0x1927f1a0, EBP=0x1927f1a4, ESI=0x00000000, EDI=0x185e4000
EIP=0x5d6d0c10, EFLAGS=0x00010246

  Top of Stack: (sp=0x1927f1a0)
0x1927f1a0: 185e4128 1927f1cc 5d756a03 045c62e0
0x1927f1b0: 185e4128 6fa6e174 6fa6e15c 185e4000
0x1927f1c0: 00000000 185e4128 1927f290 6fa6e99c
0x1927f1d0: 6fa563b2 185e4128 18584348 00000000
0x1927f1e0: 1927f204 1927f290 1862b770 1927f240
0x1927f1f0: 18584348 1927f210 6fa5bd12 1927f210
0x1927f200: 1927f244 6fa6e890 6fe25004 6fa72c68
0x1927f210: 006abe08 0000000b 00000000 00000013

Instructions: (pc=0x5d6d0c10)
0x5d6d0bf0: 8b 0d 98 2d 9b 5d 85 c9 7e 05 8b 0c 01 eb 02 33
0x5d6d0c00: c9 8b 15 9c 2d 9b 5d 85 d2 7e 05 8b 04 02 eb 03
0x5d6d0c10: 8b 46 08 85 c0 75 0f 33 c9 50 51 e8 e0 dd 14 00
0x5d6d0c20: 83 c4 08 5e 5d c3 8d 4c 4e 0c 50 51 e8 cf dd 14


Register to memory mapping:

EAX=0x045c62e0 is an oop
java.lang.String
 - klass: 'java/lang/String'
EBX=0x045c62e0 is an oop
java.lang.String
 - klass: 'java/lang/String'
ECX=0x00000000 is an unknown value
EDX=0x00000000 is an unknown value
ESP=0x1927f1a0 is pointing into the stack for thread: 0x185e4000
EBP=0x1927f1a4 is pointing into the stack for thread: 0x185e4000
ESI=0x00000000 is an unknown value
EDI=0x185e4000 is a thread


Stack: [0x19230000,0x19280000], sp=0x1927f1a0, free space=316k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0x20c10]
V [jvm.dll+0xa6a03]


--------------- P R O C E S S ---------------

Java Threads: ( => current thread )
  0x185ff400 JavaThread " Service Thread " daemon [_thread_blocked, id=5820, stack(0x19510000,0x19560000)]
  0x185fc400 JavaThread " C1 CompilerThread0 " daemon [_thread_blocked, id=5648, stack(0x19460000,0x194b0000)]
  0x185ed400 JavaThread " JDWP Command Reader " daemon [_thread_in_native, id=4660, stack(0x192a0000,0x192f0000)]
  0x185ec000 JavaThread " JDWP Event Helper Thread " daemon [_thread_blocked, id=5192, stack(0x19380000,0x193d0000)]
=>0x185e4000 JavaThread " JDWP Transport Listener: dt_socket " daemon [_thread_in_vm, id=5824, stack(0x19230000,0x19280000)]
  0x185d9c00 JavaThread " Attach Listener " daemon [_thread_blocked, id=4988, stack(0x18ba0000,0x18bf0000)]
  0x185d6c00 JavaThread " Signal Dispatcher " daemon [_thread_blocked, id=3372, stack(0x008e0000,0x00930000)]
  0x1857c800 JavaThread " Finalizer " daemon [_thread_blocked, id=4852, stack(0x18980000,0x189d0000)]
  0x18577c00 JavaThread " Reference Handler " daemon [_thread_blocked, id=2276, stack(0x18930000,0x18980000)]
  0x006ac000 JavaThread " main " [_thread_blocked, id=140, stack(0x020c0000,0x02110000)]

Other Threads:
  0x18573800 VMThread [stack: 0x18850000,0x188a0000] [id=4272]
  0x18611000 WatcherThread [stack: 0x19330000,0x19380000] [id=3932]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
 def new generation total 4928K, used 457K [0x04560000, 0x04ab0000, 0x09ab0000)
  eden space 4416K, 10% used [0x04560000, 0x045d2730, 0x049b0000)
  from space 512K, 0% used [0x049b0000, 0x049b0000, 0x04a30000)
  to space 512K, 0% used [0x04a30000, 0x04a30000, 0x04ab0000)
 tenured generation total 10944K, used 0K [0x09ab0000, 0x0a560000, 0x14560000)
   the space 10944K, 0% used [0x09ab0000, 0x09ab0000, 0x09ab0200, 0x0a560000)
 compacting perm gen total 12288K, used 1568K [0x14560000, 0x15160000, 0x18560000)
   the space 12288K, 12% used [0x14560000, 0x146e8258, 0x146e8400, 0x15160000)
No shared spaces configured.

Card table byte_map: [0x007b0000,0x00860000] byte_map_base: 0x0078d500

Polling page: 0x00130000

Code Cache [0x02560000, 0x025f8000, 0x04560000)
 total_blobs=123 nmethods=4 adapters=63 free_code_cache=32190Kb largest_free_block=32962688

Compilation events (8 events):
Event: 0.103 Thread 0x185fc400 1 java.lang.String::hashCode (55 bytes)
Event: 0.104 Thread 0x185fc400 nmethod 1 0x025ef588 code [0x025ef680, 0x025ef760]
Event: 0.104 Thread 0x185fc400 2 java.lang.String::charAt (29 bytes)
Event: 0.104 Thread 0x185fc400 nmethod 2 0x025ef888 code [0x025ef9a0, 0x025efadc]
Event: 0.106 Thread 0x185fc400 3 java.lang.String::indexOf (70 bytes)
Event: 0.107 Thread 0x185fc400 nmethod 3 0x025efec8 code [0x025effe0, 0x025f012c]
Event: 0.113 Thread 0x185fc400 4 java.lang.String::equals (81 bytes)
Event: 0.113 Thread 0x185fc400 nmethod 4 0x025f0288 code [0x025f03a0, 0x025f0540]

GC Heap History (0 events):
No events

Deoptimization events (0 events):
No events

Internal exceptions (2 events):
Event: 0.030 Thread 0x006ac000 Threw 0x04566060 at C:\jdk7u2_32P\jdk7u21\hotspot\src\share\vm\prims\jni.cpp:3994
Event: 0.108 Thread 0x006ac000 Threw 0x045c1ee0 at C:\jdk7u2_32P\jdk7u21\hotspot\src\share\vm\prims\jvm.cpp:1166

Events (10 events):
Event: 5.251 Executing VM operation: EnterInterpOnlyMode
Event: 5.251 Executing VM operation: EnterInterpOnlyMode done
Event: 5.251 Executing VM operation: GetCurrentLocation
Event: 5.251 Executing VM operation: GetCurrentLocation done
Event: 5.251 Executing VM operation: ChangeSingleStep
Event: 5.251 Executing VM operation: ChangeSingleStep done
Event: 5.252 Executing VM operation: ChangeSingleStep
Event: 5.252 Executing VM operation: ChangeSingleStep done
Event: 5.272 Executing VM operation: GetOrSetLocal
Event: 5.272 Executing VM operation: GetOrSetLocal done


Dynamic libraries:
0x00380000 - 0x003af000 C:\BSPrograms\Java\JDK\jdk1.7.0_latest\bin\javaw.exe
0x77590000 - 0x77710000 C:\Windows\SysWOW64
tdll.dll
0x74f40000 - 0x75050000 C:\Windows\syswow64\kernel32.dll
0x76a60000 - 0x76aa7000 C:\Windows\syswow64\KERNELBASE.dll
0x74d30000 - 0x74dd0000 C:\Windows\syswow64\ADVAPI32.dll
0x75400000 - 0x754ac000 C:\Windows\syswow64\msvcrt.dll
0x758c0000 - 0x758d9000 C:\Windows\SysWOW64\sechost.dll
0x757d0000 - 0x758c0000 C:\Windows\syswow64\RPCRT4.dll
0x74c70000 - 0x74cd0000 C:\Windows\syswow64\SspiCli.dll
0x74c60000 - 0x74c6c000 C:\Windows\syswow64\CRYPTBASE.dll
0x75050000 - 0x75150000 C:\Windows\syswow64\USER32.dll
0x76c40000 - 0x76cd0000 C:\Windows\syswow64\GDI32.dll
0x75b50000 - 0x75b5a000 C:\Windows\syswow64\LPK.dll
0x75360000 - 0x753fd000 C:\Windows\syswow64\USP10.dll
0x73dc0000 - 0x73f5e000 C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_41e6975e2bd6f2b2\COMCTL32.dll
0x75b60000 - 0x75bb7000 C:\Windows\syswow64\SHLWAPI.dll
0x75d20000 - 0x75d80000 C:\Windows\system32\IMM32.DLL
0x74dd0000 - 0x74e9c000 C:\Windows\syswow64\MSCTF.dll
0x6f4d0000 - 0x6f58e000 C:\BSPrograms\Java\JDK\jdk1.7.0_latest\jre\bin\msvcr100.dll
0x5d6b0000 - 0x5d9ff000 C:\BSPrograms\Java\JDK\jdk1.7.0_latest\jre\bin\client\jvm.dll
0x71150000 - 0x71157000 C:\Windows\system32\WSOCK32.dll
0x75320000 - 0x75355000 C:\Windows\syswow64\WS2_32.dll
0x76ad0000 - 0x76ad6000 C:\Windows\syswow64\NSI.dll
0x73af0000 - 0x73b22000 C:\Windows\system32\WINMM.dll
0x75d10000 - 0x75d15000 C:\Windows\syswow64\PSAPI.DLL
0x6ff40000 - 0x6ff4c000 C:\BSPrograms\Java\JDK\jdk1.7.0_latest\jre\bin\verify.dll
0x6fa80000 - 0x6faa0000 C:\BSPrograms\Java\JDK\jdk1.7.0_latest\jre\bin\java.dll
0x6fa50000 - 0x6fa7a000 C:\BSPrograms\Java\JDK\jdk1.7.0_latest\jre\bin\jdwp.dll
0x6fd30000 - 0x6fd37000 C:\BSPrograms\Java\JDK\jdk1.7.0_latest\jre\bin
pt.dll
0x6faa0000 - 0x6fab3000 C:\BSPrograms\Java\JDK\jdk1.7.0_latest\jre\bin\zip.dll
0x6fe20000 - 0x6fe28000 C:\BSPrograms\Java\JDK\jdk1.7.0_latest\jre\bin\dt_socket.dll
0x70b80000 - 0x70b90000 C:\Windows\system32\NLAapi.dll
0x665d0000 - 0x665e0000 C:\Windows\system32
apinsp.dll
0x665b0000 - 0x665c2000 C:\Windows\system32\pnrpnsp.dll
0x707a0000 - 0x707dc000 C:\Windows\System32\mswsock.dll
0x733d0000 - 0x73414000 C:\Windows\system32\DNSAPI.dll
0x665a0000 - 0x665a8000 C:\Windows\System32\winrnr.dll
0x73680000 - 0x7369c000 C:\Windows\system32\IPHLPAPI.DLL
0x73670000 - 0x73677000 C:\Windows\system32\WINNSI.DLL
0x70720000 - 0x70758000 C:\Windows\System32\fwpuclnt.dll
0x70760000 - 0x70766000 C:\Windows\system32\rasadhlp.dll
0x70790000 - 0x70795000 C:\Windows\System32\wshtcpip.dll
0x6f3e0000 - 0x6f4cb000 C:\Windows\system32\dbghelp.dll

VM Arguments:
jvm_args: -agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:61914 -Dfile.encoding=Cp1252
java_command: CoreDump
Launcher Type: SUN_STANDARD

Environment Variables:
JAVA_HOME=C:\BSPrograms\Java\JDK\jdk1.6.0_latest
PATH=C:\BSPrograms\Java\JDK\jdk1.7.0_latest\jre\bin;C:\BSPrograms\Java\JDK\jdk1.6.0_latest\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0
USERNAME=kurtabli
OS=Windows_NT
PROCESSOR_IDENTIFIER=AMD64 Family 21 Model 1 Stepping 2, AuthenticAMD



--------------- S Y S T E M ---------------

OS: Windows 7 , 64 bit Build 7601 Service Pack 1

CPU:total 6 (6 cores per cpu, 1 threads per core) family 21 model 1 stepping 2, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, avx, mmxext, 3dnowpref, lzcnt, sse4a, tsc, tscinvbit, tscinv

Memory: 4k page, physical 8332648k(5277672k free), swap 16663436k(14130576k free)

vm_info: Java HotSpot(TM) Client VM (23.21-b01) for windows-x86 JRE (1.7.0_21-b11), built on Apr 4 2013 04:43:10 by " java_re " with unknown MS VC++:1600

time: Tue Jul 30 12:47:13 2013
elapsed time: 5 seconds



REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class CoreDump {
  public static void main(final String[] args) {
    final String s1 = " " ;
    System.out.println(s1.contentEquals(new String( " " )));
  }
}
---------- END SOURCE ----------