JVM crashed , how I can find the RootCause?

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saveg...@gmail.com

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Jul 23, 2021, 6:01:04 AM7/23/21

to Java Native Access

below are the crash messages when invoking a native method.

Please advise how to find the root cause and solve it? thanks!

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

# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x774a28c7, pid=556, tid=0x00001f30

# JRE version: Java(TM) SE Runtime Environment (8.0_291-b35) (build 1.8.0_291-b35)

# Java VM: Java HotSpot(TM) Server VM (25.291-b35 mixed mode windows-x86 )

# Problematic frame:

# C [ntdll.dll+0x528c7]

# 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.java.com/bugreport/crash.jsp

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

Current thread (0x03028000): VMThread [stack: 0x02e40000,0x02e90000] [id=7984]

siginfo: ExceptionCode=0xc0000005, reading address 0x345e9c4c

Registers:

EAX=0x32313739, EBX=0x053efe78, ECX=0x00100000, EDX=0x053efe78

ESP=0x02e8f6e0, EBP=0x02e8f714, ESI=0x345e9c48, EDI=0x053efe70

EIP=0x774a28c7, EFLAGS=0x00010206

Top of Stack: (sp=0x02e8f6e0)

0x02e8f6e0: 00000000 00100000 053efe78 080cb2ec

0x02e8f6f0: 001c56f8 07a9a6b3 080cb2e4 00000002

0x02e8f700: 00000000 02e8f710 07b4fb9e 080cb2e7

0x02e8f710: 053efe70 02e8f72c 774a2878 053efdd0

0x02e8f720: 00000000 03027be0 053efe70 02e8f740

0x02e8f730: 507a078b 00100000 00000000 053efe78

0x02e8f740: 02e8f750 507a0758 053efe78 00000000

0x02e8f750: 02e8f760 07aa35c2 053efe78 053efe78

Instructions: (pc=0x774a28c7)

0x774a28a7: 7a f8 80 7f 07 05 0f 84 b7 f4 03 00 8b 07 8b f7

0x774a28b7: c1 ee 03 33 f0 33 35 dc 81 52 77 89 7d fc 33 f1

0x774a28c7: 8b 46 04 89 45 f4 c6 47 07 80 c6 47 06 00 8b 5e

0x774a28d7: 08 8b 4e 0c 89 5d e0 83 c3 01 89 4d e4 83 d1 01

EAX=0x32313739 is an unknown value

EBX=0x053efe78 is an unknown value

ECX=0x00100000 is an unknown value

EDX=0x053efe78 is an unknown value

ESP=0x02e8f6e0 is an unknown value

EBP=0x02e8f714 is an unknown value

ESI=0x345e9c48 is an unknown value

EDI=0x053efe70 is an unknown value

Stack: [0x02e40000,0x02e90000], sp=0x02e8f6e0, free space=317k

Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)

C [ntdll.dll+0x528c7]

C [ntdll.dll+0x52878]

C [ucrtbase.DLL+0x3078b]

C [ucrtbase.DLL+0x30758]

V [jvm.dll+0x1835c2]

V [jvm.dll+0x74e6b]

V [jvm.dll+0x1a73f6]

V [jvm.dll+0x1a7812]

V [jvm.dll+0x1e75eb]

C [ucrtbase.DLL+0x3feff]

C [kernel32.dll+0x4ef3c]

C [ntdll.dll+0x6360c]

C [ntdll.dll+0x635df]

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

Java Threads: ( => current thread )

0x030f5000 JavaThread "DestroyJavaVM" [_thread_blocked, id=1332, stack(0x008c0000,0x00910000)]

0x030f4800 JavaThread "http-nio-8080-Acceptor" daemon [_thread_in_native, id=8080, stack(0x2a1d0000,0x2a220000)]

0x030f4000 JavaThread "http-nio-8080-Poller" daemon [_thread_in_native, id=2892, stack(0x2a0e0000,0x2a130000)]

0x030f3c00 JavaThread "http-nio-8080-exec-10" daemon [_thread_blocked, id=8044, stack(0x29c40000,0x29c90000)]

0x030f3400 JavaThread "http-nio-8080-exec-9" daemon [_thread_blocked, id=7764, stack(0x2a050000,0x2a0a0000)]

0x030f2c00 JavaThread "http-nio-8080-exec-8" daemon [_thread_blocked, id=6972, stack(0x29c90000,0x29ce0000)]

0x030f2800 JavaThread "http-nio-8080-exec-7" daemon [_thread_blocked, id=2416, stack(0x06600000,0x06650000)]

0x030f2000 JavaThread "http-nio-8080-exec-6" daemon [_thread_in_native, id=5648, stack(0x06cd0000,0x06d20000)]

0x030f1800 JavaThread "http-nio-8080-exec-5" daemon [_thread_blocked, id=6992, stack(0x298e0000,0x29930000)]

0x047ba800 JavaThread "http-nio-8080-exec-4" daemon [_thread_blocked, id=1480, stack(0x078a0000,0x078f0000)]

0x046c3400 JavaThread "http-nio-8080-exec-3" daemon [_thread_blocked, id=3116, stack(0x07730000,0x07780000)]

0x04ab8800 JavaThread "http-nio-8080-exec-2" daemon [_thread_blocked, id=3228, stack(0x29a60000,0x29ab0000)]

0x27374c00 JavaThread "http-nio-8080-exec-1" daemon [_thread_blocked, id=6544, stack(0x16f50000,0x16fa0000)]

0x27de9000 JavaThread "container-0" [_thread_blocked, id=6628, stack(0x05790000,0x057e0000)]

0x27f6d000 JavaThread "Catalina-utility-2" [_thread_blocked, id=6632, stack(0x07270000,0x072c0000)]

0x27603c00 JavaThread "Catalina-utility-1" [_thread_blocked, id=6124, stack(0x066a0000,0x066f0000)]

0x03183000 JavaThread "Service Thread" daemon [_thread_blocked, id=6716, stack(0x03550000,0x035a0000)]

0x030f1400 JavaThread "C1 CompilerThread2" daemon [_thread_blocked, id=6292, stack(0x03500000,0x03550000)]

0x030f0c00 JavaThread "C2 CompilerThread1" daemon [_thread_blocked, id=5360, stack(0x01de0000,0x01e30000)]

0x030e3000 JavaThread "C2 CompilerThread0" daemon [_thread_blocked, id=4792, stack(0x032a0000,0x032f0000)]

0x030df000 JavaThread "Attach Listener" daemon [_thread_blocked, id=1540, stack(0x03430000,0x03480000)]

0x030de400 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=3536, stack(0x03310000,0x03360000)]

0x030c8400 JavaThread "Finalizer" daemon [_thread_blocked, id=7556, stack(0x02d80000,0x02dd0000)]

0x001ff800 JavaThread "Reference Handler" daemon [_thread_blocked, id=7672, stack(0x02ec0000,0x02f10000)]

Other Threads:

=>0x03028000 VMThread [stack: 0x02e40000,0x02e90000] [id=7984]

0x03185400 WatcherThread [stack: 0x02de0000,0x02e30000] [id=6568]

VM state:at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event])

[0x0013fe08] Safepoint_lock - owner thread: 0x03028000

[0x0013fe70] Threads_lock - owner thread: 0x03028000

Heap:

PSYoungGen total 75520K, used 5965K [0x21ac0000, 0x27000000, 0x27000000)

eden space 73472K, 8% used [0x21ac0000,0x22093458,0x26280000)

from space 2048K, 0% used [0x26280000,0x26280000,0x26480000)

to space 7168K, 0% used [0x26900000,0x26900000,0x27000000)

ParOldGen total 36352K, used 10057K [0x17000000, 0x19380000, 0x21ac0000)

object space 36352K, 27% used [0x17000000,0x179d2718,0x19380000)

Metaspace used 26075K, capacity 27304K, committed 27436K, reserved 28032K

Card table byte_map: [0x00980000,0x00a10000] byte_map_base: 0x008c8000

Marking Bits: (ParMarkBitMap*) 0x07edfef8

Begin Bits: [0x01ff0000, 0x023f0000)

End Bits: [0x023f0000, 0x027f0000)

Polling page: 0x00880000

CodeCache: size=245760Kb used=8529Kb max_used=10120Kb free=237230Kb

bounds [0x07f50000, 0x08938000, 0x16f50000]

total_blobs=3579 nmethods=3345 adapters=147

compilation: enabled

Compilation events (10 events):

Event: 585.830 Thread 0x030f1400 3935 3 java.lang.ThreadLocal$ThreadLocalMap::remove (68 bytes)

Event: 585.831 Thread 0x030f1400 nmethod 3935 0x080cc788 code [0x080cc8c0, 0x080cccac]

Event: 585.831 Thread 0x030f1400 3932 3 java.nio.HeapByteBuffer::put (54 bytes)

Event: 585.831 Thread 0x030f1400 nmethod 3932 0x08127e08 code [0x08127f80, 0x081285d0]

Event: 621.054 Thread 0x030f1400 3936 3 org.apache.tomcat.util.buf.MessageBytes::setBytes (31 bytes)

Event: 621.054 Thread 0x030f1400 nmethod 3936 0x081c2e08 code [0x081c2f20, 0x081c3100]

Event: 621.055 Thread 0x030f1400 3938 3 org.apache.catalina.connector.Request::getHeaders (12 bytes)

Event: 621.055 Thread 0x030f1400 nmethod 3938 0x081c2988 code [0x081c2aa0, 0x081c2ccc]

Event: 621.055 Thread 0x030f1400 3937 3 java.util.TreeMap$PrivateEntryIterator::hasNext (13 bytes)

Event: 621.055 Thread 0x030f1400 nmethod 3937 0x080b3f88 code [0x080b40a0, 0x080b41c0]

Deoptimization events (10 events):

Event: 376.861 Thread 0x030f2800 Uncommon trap: reason=bimorphic action=maybe_recompile pc=0x087ccd94 method=java.util.Collections$SynchronizedMap.put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object; @ 13

Event: 376.862 Thread 0x030f2800 Uncommon trap: reason=null_check action=make_not_entrant pc=0x0881a870 method=java.lang.Class.reflectionData()Ljava/lang/Class$ReflectionData; @ 24

Event: 412.962 Thread 0x030f2800 Uncommon trap: reason=null_check action=make_not_entrant pc=0x0889ada0 method=java.lang.Class.reflectionData()Ljava/lang/Class$ReflectionData; @ 24

Event: 412.962 Thread 0x030f2800 Uncommon trap: reason=unstable_if action=reinterpret pc=0x0888cbf4 method=org.springframework.util.ConcurrentReferenceHashMap$Segment.restructureIfNecessary(Z)V @ 41

Event: 412.962 Thread 0x030f2800 Uncommon trap: reason=unstable_if action=reinterpret pc=0x08875fb8 method=org.springframework.util.ConcurrentReferenceHashMap$Segment.restructureIfNecessary(Z)V @ 41

Event: 412.963 Thread 0x030f2800 Uncommon trap: reason=unstable_if action=reinterpret pc=0x08823f38 method=org.springframework.util.ConcurrentReferenceHashMap$Segment.restructureIfNecessary(Z)V @ 41

Event: 412.963 Thread 0x030f2800 Uncommon trap: reason=unstable_if action=reinterpret pc=0x08822764 method=org.springframework.util.ConcurrentReferenceHashMap$Segment.restructureIfNecessary(Z)V @ 41

Event: 412.963 Thread 0x030f2800 Uncommon trap: reason=unstable_if action=reinterpret pc=0x0830962c method=org.springframework.util.ConcurrentReferenceHashMap$Segment.restructureIfNecessary(Z)V @ 41

Classes redefined (0 events):

No events

Internal exceptions (10 events):

Event: 3.975 Thread 0x00141c00 Exception <a 'java/lang/ClassNotFoundException': org/springframework/web/context/ServletContextAwareCustomizer> (0x241ed008) thrown at [C:\jenkins\workspace\8-2-build-windows-i586-cygwin\jdk8u291-bpr\1536\hotspot\src\share\vm\classfile\systemDictionary.cp

Event: 3.975 Thread 0x00141c00 Exception <a 'java/lang/ClassNotFoundException': org/springframework/beans/factory/AwareCustomizer> (0x24211970) thrown at [C:\jenkins\workspace\8-2-build-windows-i586-cygwin\jdk8u291-bpr\1536\hotspot\src\share\vm\classfile\systemDictionary.cpp, line 212]

Event: 4.216 Thread 0x00141c00 Exception <a 'java/lang/NoSuchMethodError': java.lang.Object.lambda$thenComparing$36697e65$1(Ljava/util/Comparator;Ljava/lang/Object;Ljava/lang/Object;)I> (0x2565bd90) thrown at [C:\jenkins\workspace\8-2-build-windows-i586-cygwin\jdk8u291-bpr\1536\hotspot

Event: 4.287 Thread 0x00141c00 Exception <a 'java/lang/IncompatibleClassChangeError': Found class java.lang.Object, but interface was expected> (0x25b29208) thrown at [C:\jenkins\workspace\8-2-build-windows-i586-cygwin\jdk8u291-bpr\1536\hotspot\src\share\vm\interpreter\linkResolver.cpp

Event: 12.000 Thread 0x27374c00 Implicit null exception at 0x087529da to 0x08752a61

Event: 13.732 Thread 0x27374c00 Implicit null exception at 0x0814427f to 0x081445e1

Event: 17.435 Thread 0x27374c00 Implicit null exception at 0x080dd73f to 0x080ddab1

Event: 376.859 Thread 0x030f2800 Implicit null exception at 0x086f9da9 to 0x086fa159

Event: 376.862 Thread 0x030f2800 Implicit null exception at 0x0881a3e9 to 0x0881a855

Event: 412.962 Thread 0x030f2800 Implicit null exception at 0x0889a0ca to 0x0889ad79

Events (10 events):

Event: 531.219 Executing VM operation: RevokeBias

Event: 531.219 Executing VM operation: RevokeBias done

Event: 531.240 Executing VM operation: RevokeBias

Event: 531.240 Executing VM operation: RevokeBias done

Event: 565.758 Executing VM operation: RevokeBias

Event: 565.758 Executing VM operation: RevokeBias done

Event: 565.758 Executing VM operation: RevokeBias

Event: 565.758 Executing VM operation: RevokeBias done

Event: 573.716 Executing VM operation: RevokeBias

Event: 573.716 Executing VM operation: RevokeBias done

Dynamic libraries:

0x00a90000 - 0x00ace000 C:\cis\jdk1.8\bin\java.exe

0x77450000 - 0x77592000 C:\Windows\SYSTEM32\ntdll.dll

0x755e0000 - 0x756b5000 C:\Windows\system32\kernel32.dll

0x752a0000 - 0x752eb000 C:\Windows\system32\KERNELBASE.dll

0x76e80000 - 0x76f21000 C:\Windows\system32\ADVAPI32.dll

0x75b70000 - 0x75c1c000 C:\Windows\system32\msvcrt.dll

0x775b0000 - 0x775c9000 C:\Windows\SYSTEM32\sechost.dll

0x75a30000 - 0x75ad2000 C:\Windows\system32\RPCRT4.dll

0x75960000 - 0x75a29000 C:\Windows\system32\USER32.dll

0x76cf0000 - 0x76d3e000 C:\Windows\system32\GDI32.dll

0x76fe0000 - 0x76fea000 C:\Windows\system32\LPK.dll

0x775d0000 - 0x7766d000 C:\Windows\system32\USP10.dll

0x73b70000 - 0x73d0e000 C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.24483_none_2b200f664577e14b\COMCTL32.dll

0x76f80000 - 0x76fd7000 C:\Windows\system32\SHLWAPI.dll

0x77150000 - 0x7716f000 C:\Windows\system32\IMM32.DLL

0x76c20000 - 0x76cee000 C:\Windows\system32\MSCTF.dll

0x711e0000 - 0x711e3000 C:\Windows\system32\api-ms-win-core-synch-l1-2-0.DLL

0x71170000 - 0x71183000 C:\cis\jdk1.8\jre\bin\vcruntime140.dll

0x73090000 - 0x73094000 C:\Windows\system32\api-ms-win-crt-runtime-l1-1-0.dll

0x50770000 - 0x5084f000 C:\Windows\system32\ucrtbase.DLL

0x73fc0000 - 0x73fc3000 C:\Windows\system32\api-ms-win-core-timezone-l1-1-0.dll

0x73080000 - 0x73083000 C:\Windows\system32\api-ms-win-core-file-l2-1-0.dll

0x68230000 - 0x68233000 C:\Windows\system32\api-ms-win-core-localization-l1-2-0.dll

0x71120000 - 0x71123000 C:\Windows\system32\api-ms-win-core-processthreads-l1-1-1.dll

0x62d20000 - 0x62d23000 C:\Windows\system32\api-ms-win-core-file-l1-2-0.dll

0x63ef0000 - 0x63ef3000 C:\Windows\system32\api-ms-win-crt-heap-l1-1-0.dll

0x62c60000 - 0x62c64000 C:\Windows\system32\api-ms-win-crt-string-l1-1-0.dll

0x62d10000 - 0x62d14000 C:\Windows\system32\api-ms-win-crt-stdio-l1-1-0.dll

0x62610000 - 0x62614000 C:\Windows\system32\api-ms-win-crt-convert-l1-1-0.dll

0x52180000 - 0x521ef000 C:\cis\jdk1.8\jre\bin\msvcp140.dll

0x62620000 - 0x62623000 C:\Windows\system32\api-ms-win-crt-locale-l1-1-0.dll

0x625e0000 - 0x625e5000 C:\Windows\system32\api-ms-win-crt-math-l1-1-0.dll

0x625f0000 - 0x625f3000 C:\Windows\system32\api-ms-win-crt-filesystem-l1-1-0.dll

0x61090000 - 0x61093000 C:\Windows\system32\api-ms-win-crt-time-l1-1-0.dll

0x610a0000 - 0x610a3000 C:\Windows\system32\api-ms-win-crt-environment-l1-1-0.dll

0x61070000 - 0x61073000 C:\Windows\system32\api-ms-win-crt-utility-l1-1-0.dll

0x07920000 - 0x07f4d000 C:\cis\jdk1.8\jre\bin\server\jvm.dll

0x61080000 - 0x61087000 C:\Windows\system32\WSOCK32.dll

0x77270000 - 0x772a5000 C:\Windows\system32\WS2_32.dll

0x775a0000 - 0x775a6000 C:\Windows\system32\NSI.dll

0x75460000 - 0x75492000 C:\Windows\system32\WINMM.dll

0x74520000 - 0x74529000 C:\Windows\system32\VERSION.dll

0x755d0000 - 0x755d5000 C:\Windows\system32\PSAPI.DLL

0x5dc20000 - 0x5dc2d000 C:\cis\jdk1.8\jre\bin\verify.dll

0x524e0000 - 0x52504000 C:\cis\jdk1.8\jre\bin\java.dll

0x5da80000 - 0x5da94000 C:\cis\jdk1.8\jre\bin\zip.dll

0x75dc0000 - 0x76a0c000 C:\Windows\system32\SHELL32.dll

0x75800000 - 0x7595f000 C:\Windows\system32\ole32.dll

0x751f0000 - 0x751fb000 C:\Windows\system32\profapi.dll

0x5e0b0000 - 0x5e0bc000 C:\cis\jdk1.8\jre\bin\management.dll

0x524c0000 - 0x524d7000 C:\cis\jdk1.8\jre\bin\net.dll

0x74bd0000 - 0x74c0c000 C:\Windows\system32\mswsock.dll

0x74bc0000 - 0x74bc6000 C:\Windows\System32\wship6.dll

0x05820000 - 0x065ff000 C:\Program Files\Sangfor\SSL\ClientComponent\1_SangforNsp.dll

0x74630000 - 0x7474c000 C:\Windows\system32\MFC42.DLL

0x773b0000 - 0x77442000 C:\Windows\system32\OLEAUT32.dll

0x745a0000 - 0x7462c000 C:\Windows\system32\ODBC32.dll

0x756c0000 - 0x75800000 C:\Windows\system32\urlmon.dll

0x75340000 - 0x7536f000 C:\Windows\system32\XmlLite.dll

0x77170000 - 0x77265000 C:\Windows\system32\WININET.dll

0x76a10000 - 0x76c11000 C:\Windows\system32\iertutil.dll

0x754a0000 - 0x755c2000 C:\Windows\system32\CRYPT32.dll

0x75260000 - 0x7526c000 C:\Windows\system32\MSASN1.dll

0x74530000 - 0x74596000 C:\Windows\system32\MSVCP60.dll

0x74500000 - 0x7451c000 C:\Windows\system32\iphlpapi.dll

0x744f0000 - 0x744f7000 C:\Windows\system32\WINNSI.DLL

0x74400000 - 0x744eb000 C:\Windows\system32\dbghelp.dll

0x743c0000 - 0x743f8000 C:\Windows\system32\odbcint.dll

0x06980000 - 0x06aed000 C:\Program Files\Sangfor\SSL\ClientComponent\SangforNsp.dll

0x75ae0000 - 0x75b63000 C:\Windows\system32\CLBCatQ.DLL

0x73540000 - 0x73550000 C:\Windows\system32\NLAapi.dll

0x6eb60000 - 0x6eb70000 C:\Windows\system32\napinsp.dll

0x6eb40000 - 0x6eb52000 C:\Windows\system32\pnrpnsp.dll

0x74a90000 - 0x74ad4000 C:\Windows\system32\DNSAPI.dll

0x6ea10000 - 0x6ea18000 C:\Windows\System32\winrnr.dll

0x06d80000 - 0x0714a000 C:\Program Files\Sangfor\SSL\ClientComponent\1_SangforTcp.dll

0x75370000 - 0x7539f000 C:\Windows\system32\WINTRUST.dll

0x743a0000 - 0x743a5000 C:\Windows\System32\wshtcpip.dll

0x70070000 - 0x70076000 C:\Windows\system32\rasadhlp.dll

0x71130000 - 0x71168000 C:\Windows\System32\fwpuclnt.dll

0x74c10000 - 0x74c27000 C:\Windows\system32\CRYPTSP.dll

0x74980000 - 0x749bb000 C:\Windows\system32\rsaenh.dll

0x74a40000 - 0x74a59000 C:\Windows\system32\USERENV.dll

0x75170000 - 0x7517c000 C:\Windows\system32\CRYPTBASE.dll

0x71110000 - 0x7111d000 C:\Windows\system32\dhcpcsvc6.DLL

0x71090000 - 0x710a2000 C:\Windows\system32\dhcpcsvc.DLL

0x5dc10000 - 0x5dc1f000 C:\cis\jdk1.8\jre\bin\nio.dll

0x51e80000 - 0x51eba000 C:\Users\pcuser\AppData\Local\Temp\jna--1106355917\jna6888725146738464457.dll

0x295a0000 - 0x29676000 c:\cis\dll\KeeperClient.dll

0x55300000 - 0x55710000 c:\cis\dll\pdflib.dll

0x772b0000 - 0x7732b000 C:\Windows\system32\comdlg32.dll

0x6fd30000 - 0x6fd81000 C:\Windows\system32\WINSPOOL.DRV

0x29680000 - 0x297a4000 c:\cis\dll\LIBEAY32.dll

0x6c940000 - 0x6c9db000 C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.4940_none_d08cc06a442b34fc\MSVCR80.dll

0x033e0000 - 0x03426000 c:\cis\dll\SSLEAY32.dll

0x06af0000 - 0x06b64000 c:\cis\dll\BJGAS_IC.dll

0x6ffb0000 - 0x6ffd4000 C:\Windows\system32\WinSCard.dll

0x01eb0000 - 0x01ecb000 c:\cis\dll\WDCRWV.dll

0x750c0000 - 0x750e9000 C:\Windows\system32\WINSTA.dll

0x73ea0000 - 0x73ead000 C:\Windows\system32\WTSAPI32.dll

0x73af0000 - 0x73b30000 C:\Windows\system32\uxtheme.dll

0x75320000 - 0x75333000 C:\Windows\system32\dwmapi.dll

0x71df0000 - 0x71e4f000 C:\Program Files\Sangfor\SSL\SangforPWEx\SangforUDProtectEx.dll

0x72260000 - 0x724ef000 C:\Program Files\Sangfor\SSL\SangforPWEx\sangforvpnlibcrypto-1_1.dll

VM Arguments:

jvm_args: -Xmx256m

java_command: card-client-0.0.1.jar

java_class_path (initial): card-client-0.0.1.jar

Launcher Type: SUN_STANDARD

Environment Variables:

PATH=C:\Users\pcuser\AppData\Roaming\360DesktopLite;C:\Users\pcuser\AppData\Roaming\360DesktopLite;C:\CPU\instantclient_11_2;C:\CPU\instantclient_11_2;C:\CPU\instantclient_11_2;C:\Program Files\360\360zip;C:\Users\pcuser\AppData\Roaming\360DesktopLite;C:\CPU\instantclient_11_2;C:\CPU\instantclient_11_2;C:\Program Files\360\360zip;C:\CPU\instantclient_11_2;C:\CPU\instantclient_11_2;C:\CPU\instantclient_11_2;C:\ProgramData\Oracle\Java\javapath;C:\CPU\instantclient_11_2;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\twain_32\紫图 SmartScan;

USERNAME=pcuser

OS=Windows_NT

PROCESSOR_IDENTIFIER=x86 Family 6 Model 60 Stepping 3, GenuineIntel

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

OS: Windows 7 Build 7601 (6.1.7601.24545)

CPU:total 4 (initial active 4) (2 cores per cpu, 2 threads per core) family 6 model 60 stepping 3, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, avx, avx2, aes, clmul, erms, lzcnt, ht, tsc, tscinvbit, bmi1, bmi2

Memory: 4k page, physical 3583384k(1553100k free), swap 7165100k(4137020k free)

vm_info: Java HotSpot(TM) Server VM (25.291-b35) for windows-x86 JRE (1.8.0_291-b35), built on Jun 16 2021 02:08:32 by "java_re" with MS VC++ 15.9 (VS2017)

time: Fri Jul 23 10:24:03 2021

timezone: ?D1ú±ê×?ê±??

elapsed time: 621.744202 seconds (0d 0h 10m 21s)

Matthias Bläsing

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Jul 23, 2021, 1:40:54 PM7/23/21

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Hi,

first step: Create a minimal reproducer. That way you know where to look first. If you have a native call and the immediately breaks that is a good start.

Now check your data types, every datatypes, when your done, repeat. Incorrectly mapped structures and/or wrong datatypes can introduce subtle issues or direct crashes.

If you don't deal with structures, check if the right datatypes and sizes are provided. From the top of my head I remember that there are points in the windows API where the size of a caller provided buffer was specified in bytes and at another point in chars, which can lead to a buffer half the expected size (UCS2/UTF-16 encoding).

Maybe these pointers help.

Greetings

Matthias

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Daniel B. Widdis

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Jul 24, 2021, 11:14:30 AM7/24/21

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I'll add to Matthias's suggestions: part of making a minimal reproducer is identifying the line of code causing the crash. Begin with your crashing code and add logging and/or comment out sections to isolate exactly where the crash is occurring. That will generally lead to a single function call and let you focus on the mappings associated with that.

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