Jna - jvm crash

vfpribeiro · Junho 9, 2010, 6:31am

Olá a todos!!

Eu tenho uma dll (moph_lnk.dll) com a qual preciso trabalhar!

Tenho acesso a essa dll, depois de ler essa dll o JVM Crasha!

Estou a enviar o meu log, se alguém me puder ajudar, agradeco!

Vasco

A fatal error has been detected by the Java Runtime Environment:

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x003cb002, pid=4800, tid=5256

JRE version: 6.0_20-b02

Java VM: Java HotSpot™ Client VM (16.3-b01 mixed mode, sharing windows-x86 )

Problematic frame:

C [moph_lnk.dll+0xb002]

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 (0x02150000): VMThread [stack: 0x01360000,0x013b0000] [id=5256]

siginfo: ExceptionCode=0xc0000005, reading address 0x05250830

Registers:
EAX=0x013afdb0, EBX=0x05250830, ECX=0x05250830, EDX=0x013b0000
ESP=0x013afc94, EBP=0x013afcb8, ESI=0x00000000, EDI=0x003cd02c
EIP=0x003cb002, EFLAGS=0x00010206

Top of Stack: (sp=0x013afc94)
0x013afc94: 003ce6c8 013afdb0 003c5fb9 003ce88c
0x013afca4: 013afc94 00000000 013a0000 003c125f
0x013afcb4: ffffffff 013afccc 003c4e38 05250830
0x013afcc4: 00000003 003ca240 013afcf8 003ca255
0x013afcd4: 003ce6c8 00000000 003cad96 00000001
0x013afce4: 013afd14 7ffdf000 00000001 00000001
0x013afcf4: 003cd02c 013afd20 003c1102 003cd02c
0x013afd04: 76f116ac 003c0000 00000000 00000001

Instructions: (pc=0x003cb002)
0x003caff2: ff ff 64 8b 15 04 00 00 00 ff 4a fc 85 db 74 31
0x003cb002: 8b 0b 66 ff 09 66 8b 01 66 85 c0 75 17 64 8b 15

Stack: [0x01360000,0x013b0000], sp=0x013afc94, free space=13f013af808k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [moph_lnk.dll+0xb002]
C [moph_lnk.dll+0x4e38]
C [moph_lnk.dll+0xa255]
C [moph_lnk.dll+0x1102]
C [ntdll.dll+0x3b58c]
C [ntdll.dll+0x3b50e]
C [kernel32.dll+0x441ed]
C [msvcr71.dll+0x8d04]
C [msvcr71.dll+0x8d11]
V [jvm.dll+0x1f6ffd]
V [jvm.dll+0x1f62de]
V [jvm.dll+0x1f662c]
V [jvm.dll+0x1f6a52]
V [jvm.dll+0x17f96c]
C [msvcr71.dll+0x9565]
C [kernel32.dll+0x4d0e9]
C [ntdll.dll+0x419bb]
C [ntdll.dll+0x4198e]

VM_Operation (0x0010fb10): Exit, mode: safepoint, requested by thread 0x013f9000

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

Java Threads: ( => current thread )
0x021a0400 JavaThread “Low Memory Detector” daemon [_thread_blocked, id=424, stack(0x04460000,0x044b0000)]
0x0219b000 JavaThread “CompilerThread0” daemon [_thread_blocked, id=5516, stack(0x04410000,0x04460000)]
0x02197c00 JavaThread “Attach Listener” daemon [_thread_blocked, id=6124, stack(0x043c0000,0x04410000)]
0x02194c00 JavaThread “Signal Dispatcher” daemon [_thread_blocked, id=2908, stack(0x04370000,0x043c0000)]
0x02156000 JavaThread “Finalizer” daemon [_thread_blocked, id=4580, stack(0x04320000,0x04370000)]
0x02151400 JavaThread “Reference Handler” daemon [_thread_blocked, id=4688, stack(0x042d0000,0x04320000)]
0x013f9000 JavaThread “main” [_thread_blocked, id=5948, stack(0x000c0000,0x00110000)]

Other Threads:
=>0x02150000 VMThread [stack: 0x01360000,0x013b0000] [id=5256]

VM state:at safepoint (shutting down)

VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event])
[0x013f7548] Threads_lock - owner thread: 0x02150000

Heap
def new generation total 4928K, used 1718K [0x23ab0000, 0x24000000, 0x29000000)
eden space 4416K, 38% used [0x23ab0000, 0x23c5db50, 0x23f00000)
from space 512K, 0% used [0x23f00000, 0x23f00000, 0x23f80000)
to space 512K, 0% used [0x23f80000, 0x23f80000, 0x24000000)
tenured generation total 10944K, used 0K [0x29000000, 0x29ab0000, 0x33ab0000)
the space 10944K, 0% used [0x29000000, 0x29000000, 0x29000200, 0x29ab0000)
compacting perm gen total 12288K, used 426K [0x33ab0000, 0x346b0000, 0x37ab0000)
the space 12288K, 3% used [0x33ab0000, 0x33b1a9f0, 0x33b1aa00, 0x346b0000)
ro space 10240K, 54% used [0x37ab0000, 0x3802b760, 0x3802b800, 0x384b0000)
rw space 12288K, 55% used [0x384b0000, 0x38b4f798, 0x38b4f800, 0x390b0000)

Dynamic libraries:
0x00400000 - 0x00424000 C:\Program Files\Java\jdk1.6.0_20\bin\java.exe
0x76ed0000 - 0x76ff7000 C:\Windows\system32\ntdll.dll
0x76010000 - 0x760ec000 C:\Windows\system32\kernel32.dll
0x77060000 - 0x77126000 C:\Windows\system32\ADVAPI32.dll
0x76160000 - 0x76223000 C:\Windows\system32\RPCRT4.dll
0x7c340000 - 0x7c396000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\msvcr71.dll
0x6d8b0000 - 0x6db47000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\client\jvm.dll
0x75ac0000 - 0x75b5d000 C:\Windows\system32\USER32.dll
0x760f0000 - 0x7613b000 C:\Windows\system32\GDI32.dll
0x74040000 - 0x74072000 C:\Windows\system32\WINMM.dll
0x75700000 - 0x757aa000 C:\Windows\system32\msvcrt.dll
0x75ec0000 - 0x76005000 C:\Windows\system32\ole32.dll
0x75670000 - 0x756fd000 C:\Windows\system32\OLEAUT32.dll
0x74000000 - 0x7403d000 C:\Windows\system32\OLEACC.dll
0x76140000 - 0x7615e000 C:\Windows\system32\IMM32.DLL
0x75d60000 - 0x75e28000 C:\Windows\system32\MSCTF.dll
0x75380000 - 0x753ac000 C:\Windows\system32\apphelp.dll
0x75d50000 - 0x75d59000 C:\Windows\system32\LPK.DLL
0x75e40000 - 0x75ebd000 C:\Windows\system32\USP10.dll
0x6d860000 - 0x6d86c000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\verify.dll
0x6d3e0000 - 0x6d3ff000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\java.dll
0x6d340000 - 0x6d348000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\hpi.dll
0x754e0000 - 0x754e7000 C:\Windows\system32\PSAPI.DLL
0x6d8a0000 - 0x6d8af000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\zip.dll
0x748b0000 - 0x748eb000 C:\Windows\system32\rsaenh.dll
0x75430000 - 0x7544e000 C:\Windows\system32\USERENV.dll
0x75410000 - 0x75424000 C:\Windows\system32\Secur32.dll
0x6d6c0000 - 0x6d6d3000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\net.dll
0x757b0000 - 0x757dd000 C:\Windows\system32\WS2_32.dll
0x75860000 - 0x75866000 C:\Windows\system32\NSI.dll
0x74ba0000 - 0x74bdb000 C:\Windows\system32\mswsock.dll
0x74c00000 - 0x74c05000 C:\Windows\System32\wship6.dll
0x74450000 - 0x7445f000 C:\Windows\system32\NLAapi.dll
0x74de0000 - 0x74df9000 C:\Windows\system32\IPHLPAPI.DLL
0x74da0000 - 0x74dd5000 C:\Windows\system32\dhcpcsvc.DLL
0x75030000 - 0x7505c000 C:\Windows\system32\DNSAPI.dll
0x74d90000 - 0x74d97000 C:\Windows\system32\WINNSI.DLL
0x74d60000 - 0x74d82000 C:\Windows\system32\dhcpcsvc6.DLL
0x700b0000 - 0x700bf000 C:\Windows\system32\napinsp.dll
0x70070000 - 0x70082000 C:\Windows\system32\pnrpnsp.dll
0x700a0000 - 0x700a8000 C:\Windows\System32\winrnr.dll
0x75810000 - 0x75859000 C:\Windows\system32\WLDAP32.dll
0x70090000 - 0x7009c000 C:\Windows\system32\wshbth.dll
0x76230000 - 0x763ba000 C:\Windows\system32\SETUPAPI.dll
0x70010000 - 0x70035000 C:\Program Files\Bonjour\mdnsNSP.dll
0x74860000 - 0x74865000 C:\Windows\System32\wshtcpip.dll
0x70d20000 - 0x70d26000 C:\Windows\system32\rasadhlp.dll
0x003c0000 - 0x003d9000 C:\Users\rbasto\Desktop\moph\moph_lnk.dll

VM Arguments:
jvm_args: -Dfile.encoding=UTF-8
java_command: helloworld.Main
Launcher Type: SUN_STANDARD

Environment Variables:
CLASSPATH=.;C:\Program Files\Java\jre6\lib\ext\QTJava.zip;C:\Users\rbasto\Documents\NetBeansProjects\JNI\src\jni;C:\Users\rbasto\Documents\NetBeansProjects\JNI
PATH=C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\Microsoft SQL Server\100\Tools\Binn;C:\Program Files\Microsoft SQL Server\100\DTS\Binn;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE;C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\PrivateAssemblies;C:\Windows\System32\WindowsPowerShell\v1.0;C:\Program Files\QuickTime\QTSystem
USERNAME=rbasto
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 6 Model 15 Stepping 11, GenuineIntel

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

OS: Windows Vista Build 6002 Service Pack 2

CPU:total 2 (2 cores per cpu, 1 threads per core) family 6 model 15 stepping 11, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3

Memory: 4k page, physical 2086128k(748332k free), swap 4421120k(2114392k free)

vm_info: Java HotSpot™ Client VM (16.3-b01) for windows-x86 JRE (1.6.0_20-b02), built on Apr 12 2010 13:52:23 by “java_re” with MS VC++ 7.1 (VS2003)

time: Wed Jun 09 10:47:40 2010
elapsed time: 0 seconds

vhmolinar · Junho 9, 2010, 8:47am

Ola
me diga uma coisa, que dll é essa moph_lnk? Você já testou ela?
To perguntando isso porque posso te garantir que qualquer exception vinda de uma dll irá causar um crash na JVM !
Portanto se quer evitar crash na JVM precisas primeiro corrigir a DLL ou ao menos entender como ela funciona.

Abraços

vfpribeiro · Junho 9, 2010, 9:47am

Obrigado pela resposta.

Esta dll supostamente deve estar bem feita!

Eu desconheco como é que ela está feita porque não foi feita por mim, foi feita por uma empresa italiana.

Eu conheco os metodos porque vinham no manual.

Aliás dá-me um aviso no Dependency Walker:
Warning: At least one module has an unresolved import due to a missing export function in a delay-load dependent module.

Será que alguém me sabe dizer alguma coisa?

KWill · Junho 9, 2010, 9:58am

[quote=vfpribeiro]Olá a todos!!

Eu tenho uma dll (moph_lnk.dll) com a qual preciso trabalhar!

Tenho acesso a essa dll, depois de ler essa dll o JVM Crasha!

Estou a enviar o meu log, se alguém me puder ajudar, agradeco!

Vasco

A fatal error has been detected by the Java Runtime Environment:

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x003cb002, pid=4800, tid=5256

JRE version: 6.0_20-b02

Java VM: Java HotSpot™ Client VM (16.3-b01 mixed mode, sharing windows-x86 )

Problematic frame:

C [moph_lnk.dll+0xb002]

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 (0x02150000): VMThread [stack: 0x01360000,0x013b0000] [id=5256]

siginfo: ExceptionCode=0xc0000005, reading address 0x05250830

Registers:
EAX=0x013afdb0, EBX=0x05250830, ECX=0x05250830, EDX=0x013b0000
ESP=0x013afc94, EBP=0x013afcb8, ESI=0x00000000, EDI=0x003cd02c
EIP=0x003cb002, EFLAGS=0x00010206

Top of Stack: (sp=0x013afc94)
0x013afc94: 003ce6c8 013afdb0 003c5fb9 003ce88c
0x013afca4: 013afc94 00000000 013a0000 003c125f
0x013afcb4: ffffffff 013afccc 003c4e38 05250830
0x013afcc4: 00000003 003ca240 013afcf8 003ca255
0x013afcd4: 003ce6c8 00000000 003cad96 00000001
0x013afce4: 013afd14 7ffdf000 00000001 00000001
0x013afcf4: 003cd02c 013afd20 003c1102 003cd02c
0x013afd04: 76f116ac 003c0000 00000000 00000001

Instructions: (pc=0x003cb002)
0x003caff2: ff ff 64 8b 15 04 00 00 00 ff 4a fc 85 db 74 31
0x003cb002: 8b 0b 66 ff 09 66 8b 01 66 85 c0 75 17 64 8b 15

Stack: [0x01360000,0x013b0000], sp=0x013afc94, free space=13f013af808k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [moph_lnk.dll+0xb002]
C [moph_lnk.dll+0x4e38]
C [moph_lnk.dll+0xa255]
C [moph_lnk.dll+0x1102]
C [ntdll.dll+0x3b58c]
C [ntdll.dll+0x3b50e]
C [kernel32.dll+0x441ed]
C [msvcr71.dll+0x8d04]
C [msvcr71.dll+0x8d11]
V [jvm.dll+0x1f6ffd]
V [jvm.dll+0x1f62de]
V [jvm.dll+0x1f662c]
V [jvm.dll+0x1f6a52]
V [jvm.dll+0x17f96c]
C [msvcr71.dll+0x9565]
C [kernel32.dll+0x4d0e9]
C [ntdll.dll+0x419bb]
C [ntdll.dll+0x4198e]

VM_Operation (0x0010fb10): Exit, mode: safepoint, requested by thread 0x013f9000

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

Java Threads: ( => current thread )
0x021a0400 JavaThread “Low Memory Detector” daemon [_thread_blocked, id=424, stack(0x04460000,0x044b0000)]
0x0219b000 JavaThread “CompilerThread0” daemon [_thread_blocked, id=5516, stack(0x04410000,0x04460000)]
0x02197c00 JavaThread “Attach Listener” daemon [_thread_blocked, id=6124, stack(0x043c0000,0x04410000)]
0x02194c00 JavaThread “Signal Dispatcher” daemon [_thread_blocked, id=2908, stack(0x04370000,0x043c0000)]
0x02156000 JavaThread “Finalizer” daemon [_thread_blocked, id=4580, stack(0x04320000,0x04370000)]
0x02151400 JavaThread “Reference Handler” daemon [_thread_blocked, id=4688, stack(0x042d0000,0x04320000)]
0x013f9000 JavaThread “main” [_thread_blocked, id=5948, stack(0x000c0000,0x00110000)]

Other Threads:
=>0x02150000 VMThread [stack: 0x01360000,0x013b0000] [id=5256]

VM state:at safepoint (shutting down)

VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event])
[0x013f7548] Threads_lock - owner thread: 0x02150000

Heap
def new generation total 4928K, used 1718K [0x23ab0000, 0x24000000, 0x29000000)
eden space 4416K, 38% used [0x23ab0000, 0x23c5db50, 0x23f00000)
from space 512K, 0% used [0x23f00000, 0x23f00000, 0x23f80000)
to space 512K, 0% used [0x23f80000, 0x23f80000, 0x24000000)
tenured generation total 10944K, used 0K [0x29000000, 0x29ab0000, 0x33ab0000)
the space 10944K, 0% used [0x29000000, 0x29000000, 0x29000200, 0x29ab0000)
compacting perm gen total 12288K, used 426K [0x33ab0000, 0x346b0000, 0x37ab0000)
the space 12288K, 3% used [0x33ab0000, 0x33b1a9f0, 0x33b1aa00, 0x346b0000)
ro space 10240K, 54% used [0x37ab0000, 0x3802b760, 0x3802b800, 0x384b0000)
rw space 12288K, 55% used [0x384b0000, 0x38b4f798, 0x38b4f800, 0x390b0000)

Dynamic libraries:
0x00400000 - 0x00424000 C:\Program Files\Java\jdk1.6.0_20\bin\java.exe
0x76ed0000 - 0x76ff7000 C:\Windows\system32\ntdll.dll
0x76010000 - 0x760ec000 C:\Windows\system32\kernel32.dll
0x77060000 - 0x77126000 C:\Windows\system32\ADVAPI32.dll
0x76160000 - 0x76223000 C:\Windows\system32\RPCRT4.dll
0x7c340000 - 0x7c396000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\msvcr71.dll
0x6d8b0000 - 0x6db47000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\client\jvm.dll
0x75ac0000 - 0x75b5d000 C:\Windows\system32\USER32.dll
0x760f0000 - 0x7613b000 C:\Windows\system32\GDI32.dll
0x74040000 - 0x74072000 C:\Windows\system32\WINMM.dll
0x75700000 - 0x757aa000 C:\Windows\system32\msvcrt.dll
0x75ec0000 - 0x76005000 C:\Windows\system32\ole32.dll
0x75670000 - 0x756fd000 C:\Windows\system32\OLEAUT32.dll
0x74000000 - 0x7403d000 C:\Windows\system32\OLEACC.dll
0x76140000 - 0x7615e000 C:\Windows\system32\IMM32.DLL
0x75d60000 - 0x75e28000 C:\Windows\system32\MSCTF.dll
0x75380000 - 0x753ac000 C:\Windows\system32\apphelp.dll
0x75d50000 - 0x75d59000 C:\Windows\system32\LPK.DLL
0x75e40000 - 0x75ebd000 C:\Windows\system32\USP10.dll
0x6d860000 - 0x6d86c000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\verify.dll
0x6d3e0000 - 0x6d3ff000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\java.dll
0x6d340000 - 0x6d348000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\hpi.dll
0x754e0000 - 0x754e7000 C:\Windows\system32\PSAPI.DLL
0x6d8a0000 - 0x6d8af000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\zip.dll
0x748b0000 - 0x748eb000 C:\Windows\system32\rsaenh.dll
0x75430000 - 0x7544e000 C:\Windows\system32\USERENV.dll
0x75410000 - 0x75424000 C:\Windows\system32\Secur32.dll
0x6d6c0000 - 0x6d6d3000 C:\Program Files\Java\jdk1.6.0_20\jre\bin\net.dll
0x757b0000 - 0x757dd000 C:\Windows\system32\WS2_32.dll
0x75860000 - 0x75866000 C:\Windows\system32\NSI.dll
0x74ba0000 - 0x74bdb000 C:\Windows\system32\mswsock.dll
0x74c00000 - 0x74c05000 C:\Windows\System32\wship6.dll
0x74450000 - 0x7445f000 C:\Windows\system32\NLAapi.dll
0x74de0000 - 0x74df9000 C:\Windows\system32\IPHLPAPI.DLL
0x74da0000 - 0x74dd5000 C:\Windows\system32\dhcpcsvc.DLL
0x75030000 - 0x7505c000 C:\Windows\system32\DNSAPI.dll
0x74d90000 - 0x74d97000 C:\Windows\system32\WINNSI.DLL
0x74d60000 - 0x74d82000 C:\Windows\system32\dhcpcsvc6.DLL
0x700b0000 - 0x700bf000 C:\Windows\system32\napinsp.dll
0x70070000 - 0x70082000 C:\Windows\system32\pnrpnsp.dll
0x700a0000 - 0x700a8000 C:\Windows\System32\winrnr.dll
0x75810000 - 0x75859000 C:\Windows\system32\WLDAP32.dll
0x70090000 - 0x7009c000 C:\Windows\system32\wshbth.dll
0x76230000 - 0x763ba000 C:\Windows\system32\SETUPAPI.dll
0x70010000 - 0x70035000 C:\Program Files\Bonjour\mdnsNSP.dll
0x74860000 - 0x74865000 C:\Windows\System32\wshtcpip.dll
0x70d20000 - 0x70d26000 C:\Windows\system32\rasadhlp.dll
0x003c0000 - 0x003d9000 C:\Users\rbasto\Desktop\moph\moph_lnk.dll

VM Arguments:
jvm_args: -Dfile.encoding=UTF-8
java_command: helloworld.Main
Launcher Type: SUN_STANDARD

Environment Variables:
CLASSPATH=.;C:\Program Files\Java\jre6\lib\ext\QTJava.zip;C:\Users\rbasto\Documents\NetBeansProjects\JNI\src\jni;C:\Users\rbasto\Documents\NetBeansProjects\JNI
PATH=C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\Microsoft SQL Server\100\Tools\Binn;C:\Program Files\Microsoft SQL Server\100\DTS\Binn;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE;C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\PrivateAssemblies;C:\Windows\System32\WindowsPowerShell\v1.0;C:\Program Files\QuickTime\QTSystem
USERNAME=rbasto
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 6 Model 15 Stepping 11, GenuineIntel

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

OS: Windows Vista Build 6002 Service Pack 2

CPU:total 2 (2 cores per cpu, 1 threads per core) family 6 model 15 stepping 11, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3

Memory: 4k page, physical 2086128k(748332k free), swap 4421120k(2114392k free)

vm_info: Java HotSpot™ Client VM (16.3-b01) for windows-x86 JRE (1.6.0_20-b02), built on Apr 12 2010 13:52:23 by “java_re” with MS VC++ 7.1 (VS2003)

time: Wed Jun 09 10:47:40 2010
elapsed time: 0 seconds

[/quote]

Isso aí muitas vezes aparece por causa de funções nativas tentando mexer e/ou alterar valores de coisas que também são objetos Java. Por exemplo, quando você passa um objeto String para um trecho de código nativo e esse código nativo tenta alterar valores lá dentro dessa String.
Se for um caso parecido com esse que expliquei, tu precisa mapear essas coisas aí para o tipos “Pointer” no JNA, que assim ele deixaria o código nativo manipular essas coisas.

Inté.

vfpribeiro · Junho 9, 2010, 11:16am

Obrigado

É verdade, eu passo o objecto String!

Diz-me uma coisa tens algum exemplo, que me possas dar!

É que nunca trabalhei com pointer no JNA e o meu primeiro teste correu mal não consegui enviar um Pointer:

 Pointer p1 = null;
 Pointer p2 = null;

 p1.setString(5, "03904");
 p2.setString(9, "123456789");

 System.out.println(" <--> "); // invio

 lib.MophPutStr(p1);

 System.out.println(" <-|||-> ");

lib.MophPutStrLeft(p2,20,32);

vfpribeiro · Junho 11, 2010, 6:05am

Obrigado a todas as pessoas deste fórum!

Afinal o problema era mesmo da dll (vhmolinar, obrigado!!).
Parece-me (por aquilo que eu ouvi de italia) que o older não era compativel com Java!

Vocês fizeram um forum muito bom!!

Obrigado

Vasco

system · Dezembro 29, 2015, 5:55am

Jna - jvm crash

A fatal error has been detected by the Java Runtime Environment:

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x003cb002, pid=4800, tid=5256

JRE version: 6.0_20-b02

Java VM: Java HotSpot™ Client VM (16.3-b01 mixed mode, sharing windows-x86 )

Problematic frame:

C [moph_lnk.dll+0xb002]

If you would like to submit a bug report, please visit:

http://java.sun.com/webapps/bugreport/crash.jsp

A fatal error has been detected by the Java Runtime Environment:

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x003cb002, pid=4800, tid=5256

JRE version: 6.0_20-b02

Java VM: Java HotSpot™ Client VM (16.3-b01 mixed mode, sharing windows-x86 )

Problematic frame:

C [moph_lnk.dll+0xb002]

If you would like to submit a bug report, please visit:

http://java.sun.com/webapps/bugreport/crash.jsp

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