哪些原因会导致运行GWT时，出现JRE异常？

#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x75bc4a27, pid=728, tid=2372
#
# Java VM: Java HotSpot(TM) Client VM (1.5.0-b64 mixed mode, sharing)
# Problematic frame:
# C  [jscript.dll+0x4a27]
#

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

Current thread (0x00036e18):  JavaThread "main" [_thread_in_native, id=2372]

siginfo: ExceptionCode=0xc0000005, reading address 0x00000240

Registers:
EAX=0x00008f58, EBX=0x00000000, ECX=0x00000000, EDX=0x00000300
ESP=0x0007f534, EBP=0x0007f590, ESI=0x0007f5a4, EDI=0x0007f560
EIP=0x75bc4a27, EFLAGS=0x00010202

Top of Stack: (sp=0x0007f534)
0x0007f534:   0007f5a8 75bc75d4 02e8d3d0 00155f90
0x0007f544:   000c1378 000c1360 02e41528 00000000
0x0007f554:   2257f321 11d1991a c00039b7 00000000
0x0007f564:   00000000 0009001f 00000000 00000000
0x0007f574:   0007f530 7c930551 0007f67c 75c1c885
0x0007f584:   75bc65c0 ffffffff 75bc65bb 0007f68c
0x0007f594:   75bc7564 2257f321 11d1991a c00039b7
0x0007f5a4:   85b0c24f 02e8d3d0 00000000 02e8d3d0

Instructions: (pc=0x75bc4a27)
0x75bc4a17:   c1 75 53 56 57 8d 75 08 8d 7d c4 a5 a5 a5 8b d9
0x75bc4a27:   83 bb 40 02 00 00 00 89 45 fc a5 74 14 8b 83 40


Stack: [0x00040000,0x00080000),  sp=0x0007f534,  free space=253k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C  [jscript.dll+0x4a27]
C  [jscript.dll+0x7564]
C  [jscript.dll+0x7414]
C  [jscript.dll+0x678e]
C  [msxml3.dll+0xa0b5d]
C  [msxml3.dll+0xa292f]
C  [urlmon.dll+0x1261f]
C  [urlmon.dll+0x122a7]
C  [urlmon.dll+0xe189]
C  [urlmon.dll+0xe470]
C  [urlmon.dll+0x197a8]
C  [USER32.dll+0x8734]
C  [USER32.dll+0x8816]
C  [USER32.dll+0x89cd]
C  [USER32.dll+0x8a10]
C  [swt-win32-3235.dll+0x2273]
j  org.eclipse.swt.internal.win32.OS.DispatchMessageW(Lorg/eclipse/swt/internal/win32/MSG;)I+0
j  org.eclipse.swt.internal.win32.OS.DispatchMessage(Lorg/eclipse/swt/internal/win32/MSG;)I+7
j  org.eclipse.swt.widgets.Display.readAndDispatch()Z+50
j  com.google.gwt.dev.GWTShell.pumpEventLoop()V+16
j  com.google.gwt.dev.GWTShell.run()V+23
j  com.google.gwt.dev.GWTShell.main([Ljava/lang/String;)V+20
v  ~StubRoutines::call_stub
V  [jvm.dll+0x8168d]
V  [jvm.dll+0xd4179]
V  [jvm.dll+0x8155e]
V  [jvm.dll+0x8844c]
C  [java.exe+0x14c0]
C  [java.exe+0x64cd]
C  [kernel32.dll+0x16fd7]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j  org.eclipse.swt.internal.win32.OS.DispatchMessageW(Lorg/eclipse/swt/internal/win32/MSG;)I+0
j  org.eclipse.swt.internal.win32.OS.DispatchMessage(Lorg/eclipse/swt/internal/win32/MSG;)I+7
j  org.eclipse.swt.widgets.Display.readAndDispatch()Z+50
j  com.google.gwt.dev.GWTShell.pumpEventLoop()V+16
j  com.google.gwt.dev.GWTShell.run()V+23
j  com.google.gwt.dev.GWTShell.main([Ljava/lang/String;)V+20
v  ~StubRoutines::call_stub

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

Java Threads: ( => current thread )
  0x00abf498 JavaThread "http-0-Monitor" [_thread_blocked, id=2268]
  0x00abe808 JavaThread "http-0-Processor4" daemon [_thread_in_native, id=3824]
  0x00a7d7d0 JavaThread "http-0-Processor3" daemon [_thread_in_native, id=3296]
  0x00abd858 JavaThread "http-0-Processor2" daemon [_thread_blocked, id=1092]
  0x00abd6d8 JavaThread "http-0-Processor1" daemon [_thread_blocked, id=1624]
  0x02ebcd60 JavaThread "ContainerBackgroundProcessor[StandardEngine[gwt]]" daemon [_thread_blocked, id=952]
  0x00a6e430 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=392]
  0x00a6d098 JavaThread "CompilerThread0" daemon [_thread_blocked, id=1628]
  0x00a6c348 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=3316]
  0x00a67680 JavaThread "Finalizer" daemon [_thread_blocked, id=956]
  0x00a661a0 JavaThread "Reference Handler" daemon [_thread_blocked, id=4060]
=>0x00036e18 JavaThread "main" [_thread_in_native, id=2372]

Other Threads:
  0x00a63900 VMThread [id=3860]
  0x00a6f770 WatcherThread [id=3692]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
def new generation   total 576K, used 116K [0x22bd0000, 0x22c70000, 0x230b0000)
  eden space 512K,  20% used [0x22bd0000, 0x22be9f80, 0x22c50000)
  from space 64K,  19% used [0x22c60000, 0x22c630e8, 0x22c70000)
  to   space 64K,   0% used [0x22c50000, 0x22c50000, 0x22c60000)
tenured generation   total 4140K, used 2717K [0x230b0000, 0x234bb000, 0x26bd0000)
   the space 4140K,  65% used [0x230b0000, 0x23357770, 0x23357800, 0x234bb000)
compacting perm gen  total 8960K, used 8952K [0x26bd0000, 0x27490000, 0x2abd0000)
   the space 8960K,  99% used [0x26bd0000, 0x2748e368, 0x2748e400, 0x27490000)
    ro space 8192K,  66% used [0x2abd0000, 0x2b127960, 0x2b127a00, 0x2b3d0000)
    rw space 12288K,  46% used [0x2b3d0000, 0x2b9643a8, 0x2b964400, 0x2bfd0000)

Dynamic libraries:
0x00400000 - 0x0040c000 D:\Program Files\Java\jdk1.5.0\bin\java.exe
0x7c920000 - 0x7c9b4000 C:\WINDOWS\system32\ntdll.dll
0x7c800000 - 0x7c91d000 C:\WINDOWS\system32\kernel32.dll
0x77da0000 - 0x77e49000 C:\WINDOWS\system32\ADVAPI32.dll
0x77e50000 - 0x77ee1000 C:\WINDOWS\system32\RPCRT4.dll
0x77be0000 - 0x77c38000 C:\WINDOWS\system32\MSVCRT.dll
0x6d640000 - 0x6d7c5000 D:\Program Files\Java\jdk1.5.0\jre\bin\client\jvm.dll
0x77d10000 - 0x77d9f000 C:\WINDOWS\system32\USER32.dll
0x77ef0000 - 0x77f37000 C:\WINDOWS\system32\GDI32.dll
0x76b10000 - 0x76b3a000 C:\WINDOWS\system32\WINMM.dll
0x76300000 - 0x7631d000 C:\WINDOWS\system32\IMM32.DLL
0x62c20000 - 0x62c29000 C:\WINDOWS\system32\LPK.DLL
0x73fa0000 - 0x7400b000 C:\WINDOWS\system32\USP10.dll
0x6d280000 - 0x6d288000 D:\Program Files\Java\jdk1.5.0\jre\bin\hpi.dll
0x76bc0000 - 0x76bcb000 C:\WINDOWS\system32\PSAPI.DLL
0x6d610000 - 0x6d61c000 D:\Program Files\Java\jdk1.5.0\jre\bin\verify.dll
0x6d300000 - 0x6d31d000 D:\Program Files\Java\jdk1.5.0\jre\bin\java.dll
0x6d630000 - 0x6d63f000 D:\Program Files\Java\jdk1.5.0\jre\bin\zip.dll
0x10000000 - 0x1005b000 D:\Program Files\GWT\gwt-windows-1.4.60\swt-win32-3235.dll
0x76990000 - 0x76acd000 C:\WINDOWS\system32\ole32.dll
0x77180000 - 0x77283000 C:\WINDOWS\WinSxS\X86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2982_x-ww_ac3f9c03\COMCTL32.dll
0x77f40000 - 0x77fb6000 C:\WINDOWS\system32\SHLWAPI.dll
0x76320000 - 0x76367000 C:\WINDOWS\system32\comdlg32.dll
0x7d590000 - 0x7dd82000 C:\WINDOWS\system32\SHELL32.dll
0x770f0000 - 0x7717c000 C:\WINDOWS\system32\OLEAUT32.dll
0x76680000 - 0x76722000 C:\WINDOWS\system32\WININET.dll
0x765e0000 - 0x76672000 C:\WINDOWS\system32\CRYPT32.dll
0x76db0000 - 0x76dc2000 C:\WINDOWS\system32\MSASN1.dll
0x73b40000 - 0x73b60000 C:\WINDOWS\system32\MSVFW32.dll
0x5d170000 - 0x5d20a000 C:\WINDOWS\system32\comctl32.dll
0x5adc0000 - 0x5adf7000 C:\WINDOWS\system32\uxtheme.dll
0x03340000 - 0x03347000 d:\Program Files\Logitech\MouseWare\System\LgWndHk.dll
0x74680000 - 0x746cb000 C:\WINDOWS\system32\MSCTF.dll
0x76d70000 - 0x76d92000 C:\WINDOWS\system32\apphelp.dll
0x73640000 - 0x7366e000 C:\WINDOWS\system32\msctfime.ime
0x77fc0000 - 0x77fd1000 C:\WINDOWS\system32\Secur32.dll
0x76fa0000 - 0x7701f000 C:\WINDOWS\system32\CLBCATQ.DLL
0x77020000 - 0x770ba000 C:\WINDOWS\system32\COMRes.dll
0x77bd0000 - 0x77bd8000 C:\WINDOWS\system32\VERSION.dll
0x67600000 - 0x67609000 D:\Program Files\GWT\gwt-windows-1.4.60\gwt-ll.dll
0x71a40000 - 0x71a4b000 C:\WINDOWS\system32\wsock32.dll
0x71a20000 - 0x71a37000 C:\WINDOWS\system32\WS2_32.dll
0x71a10000 - 0x71a18000 C:\WINDOWS\system32\WS2HELP.dll
0x76eb0000 - 0x76eec000 C:\WINDOWS\system32\RASAPI32.DLL
0x76e60000 - 0x76e72000 C:\WINDOWS\system32\rasman.dll
0x5fdd0000 - 0x5fe24000 C:\WINDOWS\system32\NETAPI32.dll
0x76e80000 - 0x76eaf000 C:\WINDOWS\system32\TAPI32.dll
0x76e50000 - 0x76e5e000 C:\WINDOWS\system32\rtutils.dll
0x762f0000 - 0x762f5000 C:\WINDOWS\system32\msimg32.dll
0x759d0000 - 0x75a7e000 C:\WINDOWS\system32\USERENV.dll
0x719c0000 - 0x719fe000 C:\WINDOWS\System32\mswsock.dll
0x76ef0000 - 0x76f17000 C:\WINDOWS\system32\DNSAPI.dll
0x76d30000 - 0x76d48000 C:\WINDOWS\system32\iphlpapi.dll
0x60fd0000 - 0x61025000 C:\WINDOWS\system32\hnetcfg.dll
0x71a00000 - 0x71a08000 C:\WINDOWS\System32\wshtcpip.dll
0x76f90000 - 0x76f96000 C:\WINDOWS\system32\rasadhlp.dll
0x6d4c0000 - 0x6d4d3000 D:\Program Files\Java\jdk1.5.0\jre\bin\net.dll
0x7e550000 - 0x7e6bf000 C:\WINDOWS\system32\shdocvw.dll
0x75430000 - 0x754a1000 C:\WINDOWS\system32\CRYPTUI.dll
0x76c00000 - 0x76c2e000 C:\WINDOWS\system32\WINTRUST.dll
0x76c60000 - 0x76c88000 C:\WINDOWS\system32\IMAGEHLP.dll
0x76f30000 - 0x76f5c000 C:\WINDOWS\system32\WLDAP32.dll
0x75e00000 - 0x75eae000 C:\WINDOWS\system32\SXS.DLL
0x20000000 - 0x20549000 C:\WINDOWS\system32\xpsp2res.dll
0x75c60000 - 0x75cfe000 C:\WINDOWS\system32\urlmon.dll
0x04470000 - 0x044ec000 C:\WINDOWS\system32\shdoclc.dll
0x74cf0000 - 0x74d81000 C:\WINDOWS\system32\mlang.dll
0x04500000 - 0x0450b000 C:\Program Files\Common Files\Logitech\Scrolling\LgMsgHk.dll
0x75ff0000 - 0x76055000 C:\WINDOWS\system32\MSVCP60.dll
0x7e210000 - 0x7e506000 C:\WINDOWS\system32\mshtml.dll
0x74620000 - 0x74647000 C:\WINDOWS\system32\msls31.dll
0x74650000 - 0x7467a000 C:\WINDOWS\system32\msimtf.dll
0x04b40000 - 0x04b59000 d:\Program Files\Rising\Rav\RavScrCh.dll
0x73270000 - 0x732d7000 C:\WINDOWS\system32\vbscript.dll
0x73d30000 - 0x73e2e000 C:\WINDOWS\system32\MFC42.DLL
0x61be0000 - 0x61bed000 C:\WINDOWS\system32\MFC42LOC.DLL
0x75bc0000 - 0x75c2e000 C:\WINDOWS\system32\jscript.dll
0x76060000 - 0x761b6000 C:\WINDOWS\system32\SETUPAPI.dll
0x753b0000 - 0x75421000 C:\WINDOWS\system32\mshtmled.dll
0x5dd50000 - 0x5de63000 C:\WINDOWS\system32\msxml3.dll

VM Arguments:
jvm_args: -Dcom.google.gwt.junit.reportPath=
java_command: com.google.gwt.dev.GWTShell -port auto com.google.gwt.junit.viewer.ReportViewer/ReportViewer.html?gwt.hybrid;

Environment Variables:
JAVA_HOME=D:\Program Files\Java\jdk1.5.0
PATH=D:\Program Files\Java\jdk1.5.0\bin;E:\oracle\ora90\bin;E:\oracle\ora90\Apache\Perl\5.00503\bin\mswin32-x86;C:\Program Files\Oracle\jre\1.1.8\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem
USERNAME=Administrator
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 15 Model 72 Stepping 2, AuthenticAMD


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

OS: Windows XP Build 2600 Service Pack 2

CPU:total 2 family 79, cmov, cx8, fxsr, mmx, sse, sse2, ht

Memory: 4k page, physical 1047852k(558660k free), swap 1970012k(1411188k free)

vm_info: Java HotSpot(TM) Client VM (1.5.0-b64) for windows-x86, built on Sep 15 2004 03:00:31 by "java_re" with MS VC++ 6.0

对于“jscript.dll”这个问题，不是代码的问题，而是IE浏览器的问题，从这里可以估计你的浏览器是IE6，可能是某些原因，而导致了浏览器安装的不完全，或者是缺少些文件，重装一下浏览器或者是升级为IE7，就可以解决这个问题，只有极少数机子的浏览器才会出现这样的问题！