JNI调用老是出错，救命呀

JNI调用.net系统的form时可以，但是自己写的就不行了。错误提示如下。
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : unknown exception code (0xe0434f4d) occurred at PC=0x7C81EB33
Function=RaiseException+0x52
Library=C:\WINDOWS\system32\kernel32.dllCurrent Java thread:
at toller.Toller.TollerInterface(Native Method)
at toller.Toller.main(Toller.java:23)Dynamic libraries:
0x00400000 - 0x00407000  C:\JBuilderX\jdk1.4\bin\javaw.exe
0x7C920000 - 0x7C9B4000  C:\WINDOWS\system32\ntdll.dll
0x7C800000 - 0x7C91C000  C:\WINDOWS\system32\kernel32.dll
0x77DA0000 - 0x77E49000  C:\WINDOWS\system32\ADVAPI32.dll
0x77E50000 - 0x77EE1000  C:\WINDOWS\system32\RPCRT4.dll
0x77D10000 - 0x77D9F000  C:\WINDOWS\system32\USER32.dll
0x77EF0000 - 0x77F36000  C:\WINDOWS\system32\GDI32.dll
0x77BE0000 - 0x77C38000  C:\WINDOWS\system32\MSVCRT.dll
0x76300000 - 0x7631D000  C:\WINDOWS\system32\IMM32.DLL
0x62C20000 - 0x62C29000  C:\WINDOWS\system32\LPK.DLL
0x73FA0000 - 0x7400B000  C:\WINDOWS\system32\USP10.dll
0x08000000 - 0x08136000  C:\JBuilderX\jdk1.4\jre\bin\client\jvm.dll
0x76B10000 - 0x76B3A000  C:\WINDOWS\system32\WINMM.dll
0x10000000 - 0x10007000  C:\JBuilderX\jdk1.4\jre\bin\hpi.dll
0x003F0000 - 0x003FE000  C:\JBuilderX\jdk1.4\jre\bin\verify.dll
0x009A0000 - 0x009B8000  C:\JBuilderX\jdk1.4\jre\bin\java.dll
0x009C0000 - 0x009CD000  C:\JBuilderX\jdk1.4\jre\bin\zip.dll
0x02DB0000 - 0x02DD2000  D:\Source\TollInterface\JNI\TollInterface.dll
0x78800000 - 0x7883A000  C:\WINDOWS\system32\mscoree.dll
0x77F40000 - 0x77FB6000  C:\WINDOWS\system32\SHLWAPI.dll
0x791B0000 - 0x79416000  C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\mscorwks.dll
0x7C340000 - 0x7C396000  C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\MSVCR71.dll
0x79040000 - 0x79085000  C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\fusion.dll
0x76990000 - 0x76ACC000  C:\WINDOWS\system32\ole32.dll
0x773A0000 - 0x77B91000  C:\WINDOWS\system32\SHELL32.dll
0x77180000 - 0x77282000  C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2180_x-ww_a84f1ff9\comctl32.dll
0x5D170000 - 0x5D207000  C:\WINDOWS\system32\comctl32.dll
0x79780000 - 0x7998C000  c:\windows\microsoft.net\framework\v1.1.4322\mscorlib.dll
0x79990000 - 0x79CCC000  c:\windows\assembly\nativeimages1_v1.1.4322\mscorlib\1.0.5000.0__b77a5c561934e089_88e2491a\mscorlib.dll
0x79430000 - 0x7947D000  C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\MSCORJIT.DLL
0x51A70000 - 0x51AF0000  C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\diasymreader.dll
0x76C60000 - 0x76C88000  C:\WINDOWS\system32\imagehlp.dll
0x68D60000 - 0x68E01000  C:\WINDOWS\system32\DBGHELP.dll
0x77BD0000 - 0x77BD8000  C:\WINDOWS\system32\VERSION.dll
0x76BC0000 - 0x76BCB000  C:\WINDOWS\system32\PSAPI.DLLHeap at VM Abort:
Heap
 def new generation   total 576K, used 145K [0x10010000, 0x100b0000, 0x104f0000)
  eden space 512K,  28% used [0x10010000, 0x10034770, 0x10090000)
  from space 64K,   0% used [0x10090000, 0x10090000, 0x100a0000)
  to   space 64K,   0% used [0x100a0000, 0x100a0000, 0x100b0000)
 tenured generation   total 1408K, used 0K [0x104f0000, 0x10650000, 0x14010000)
   the space 1408K,   0% used [0x104f0000, 0x104f0000, 0x104f0200, 0x10650000)
 compacting perm gen  total 4096K, used 1188K [0x14010000, 0x14410000, 0x18010000)
   the space 4096K,  29% used [0x14010000, 0x14139290, 0x14139400, 0x14410000)Local Time = Fri Nov 12 13:46:27 2004
Elapsed Time = 4
#
# The exception above was detected in native code outside the VM
#
# Java VM: Java HotSpot(TM) Client VM (1.4.2_01-b06 mixed mode)
#