Example analysis of jvm error reporting when calling based on jni-javaTutorial-php.cn

This article is a detailed analysis and introduction to the error reporting problem of jvm when jni is called. Friends who need it can refer to it

Execute the following jni call:

When the code is as follows:

package jni; public class JNITransObject { public native TestJNI[] ObjectMethod(String text); static { System.loadLibrary("JNITransObject"); } public static void main(String args[]) { JNITransObject jniTransObject = new JNITransObject(); TestJNI[] testJNIs = jniTransObject.ObjectMethod("jni trans object"); for (int i = 0; i < testJNIs.length; i++) { System.out.println(testJNIs[i].getTopic()); } } }

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, the following error is reported:

# # A fatal error has been detected by the Java Runtime Environment: # # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d91c1db, pid=3544, tid=5408 # # JRE version: 6.0_21-b06 # Java VM: Java HotSpot(TM) Client VM (17.0-b16 mixed mode, sharing windows-x86 ) # Problematic frame: # V [jvm.dll+0x11c1db] # # 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 (0x01aa6400): JavaThread "main" [_thread_in_vm, id=5408, stack(0x00160000,0x001b0000)] siginfo: ExceptionCode=0xc0000005, reading address 0x00000009 Registers: EAX=0x00000005, EBX=0x00002000, ECX=0x00000006, EDX=0x23b47f28 ESP=0x001afa9c, EBP=0x001afaa8, ESI=0x01aa6400, EDI=0x01aa6400 EIP=0x6d91c1db, EFLAGS=0x00010202 Top of Stack: (sp=0x001afa9c) 0x001afa9c: 01aa6400 37b19738 3851d3b8 001afaf8 0x001afaac: 01b89f47 01aa6518 001afb00 001afb18 0x001afabc: 23b23bc0 001afb10 00000000 00002000 0x001afacc: 6d8f1751 01aa6400 00000006 001afad8 0x001afadc: 00000000 001afb18 3851ca08 00000000 0x001afaec: 3851d3b8 00000000 001afb08 001afb3c 0x001afafc: 01b82da1 38b317c8 01b88269 00002000 0x001afb0c: 00000000 23b47f28 23b23bc0 00000005 Instructions: (pc=0x6d91c1db) 0x6d91c1cb: 74 5f 8b 55 18 85 d2 74 58 8b 5d 20 8b 12 8b 00 0x6d91c1db: 8b 48 04 8b 79 08 56 53 8b 5d 1c 53 52 8b 55 14 Stack: [0x00160000,0x001b0000], sp=0x001afa9c, free space=13e001af45ck Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [jvm.dll+0x11c1db] j java.lang.System.arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V+0 j java.lang.String.getChars(II[CI)V+62 j java.io.BufferedWriter.write(Ljava/lang/String;II)V+63 j java.io.Writer.write(Ljava/lang/String;)V+7 j java.io.PrintStream.write(Ljava/lang/String;)V+13 j java.io.PrintStream.print(Ljava/lang/String;)V+9 j java.io.PrintStream.println(Ljava/lang/String;)V+6 j jni.JNITransObject.main([Ljava/lang/String;)V+29 v ~StubRoutines::call_stub V [jvm.dll+0xf3abc] V [jvm.dll+0x1865b1] V [jvm.dll+0xf3b3d] V [jvm.dll+0xfd385] V [jvm.dll+0x104fdd] C [javaw.exe+0x2155] C [javaw.exe+0x8614] C [kernel32.dll+0x4ed6c] C [ntdll.dll+0x637f5] C [ntdll.dll+0x637c8] Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) j java.lang.System.arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V+0 j java.lang.String.getChars(II[CI)V+62 j java.io.BufferedWriter.write(Ljava/lang/String;II)V+63 j java.io.Writer.write(Ljava/lang/String;)V+7 j java.io.PrintStream.write(Ljava/lang/String;)V+13 j java.io.PrintStream.print(Ljava/lang/String;)V+9 j java.io.PrintStream.println(Ljava/lang/String;)V+6 j jni.JNITransObject.main([Ljava/lang/String;)V+29 v ~StubRoutines::call_stub --------------- P R O C E S S --------------- Java Threads: ( => current thread ) 0x01b2e800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=7580, stack(0x03e10000,0x03e60000)] 0x01b21800 JavaThread "CompilerThread0" daemon [_thread_blocked, id=6392, stack(0x03dc0000,0x03e10000)] 0x01b19800 JavaThread "Attach Listener" daemon [_thread_blocked, id=6364, stack(0x03d70000,0x03dc0000)] 0x01b16c00 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=6360, stack(0x03d20000,0x03d70000)] 0x01acd000 JavaThread "Finalizer" daemon [_thread_blocked, id=6348, stack(0x03cd0000,0x03d20000)] 0x01acb800 JavaThread "Reference Handler" daemon [_thread_blocked, id=6316, stack(0x03c80000,0x03cd0000)] =>0x01aa6400 JavaThread "main" [_thread_in_vm, id=5408, stack(0x00160000,0x001b0000)] Other Threads: 0x01aca400 VMThread [stack: 0x03c30000,0x03c80000] [id=6320] 0x01b2f400 WatcherThread [stack: 0x03e60000,0x03eb0000] [id=4824] VM state:not at safepoint (normal execution) VM Mutex/Monitor currently owned by a thread: None Heap def new generation total 4928K, used 1479K [0x23b10000, 0x24060000, 0x29060000) eden space 4416K, 33% used [0x23b10000, 0x23c81ef8, 0x23f60000) from space 512K, 0% used [0x23f60000, 0x23f60000, 0x23fe0000) to space 512K, 0% used [0x23fe0000, 0x23fe0000, 0x24060000) tenured generation total 10944K, used 0K [0x29060000, 0x29b10000, 0x33b10000) the space 10944K, 0% used [0x29060000, 0x29060000, 0x29060200, 0x29b10000) compacting perm gen total 12288K, used 368K [0x33b10000, 0x34710000, 0x37b10000) the space 12288K, 2% used [0x33b10000, 0x33b6c1d0, 0x33b6c200, 0x34710000) ro space 10240K, 51% used [0x37b10000, 0x3803b700, 0x3803b800, 0x38510000) rw space 12288K, 54% used [0x38510000, 0x38ba76c0, 0x38ba7800, 0x39110000) Dynamic libraries: 0x00400000 - 0x00424000 C:\Program Files\Java\jre6\bin\javaw.exe 0x77720000 - 0x7785c000 C:\Windows\SYSTEM32\ntdll.dll 0x75b10000 - 0x75be4000 C:\Windows\system32\kernel32.dll 0x75830000 - 0x7587a000 C:\Windows\system32\KERNELBASE.dll 0x774c0000 - 0x77560000 C:\Windows\system32\ADVAPI32.dll 0x77340000 - 0x773ec000 C:\Windows\system32\msvcrt.dll 0x77870000 - 0x77889000 C:\Windows\SYSTEM32\sechost.dll 0x760b0000 - 0x76151000 C:\Windows\system32\RPCRT4.dll 0x75ec0000 - 0x75f89000 C:\Windows\system32\USER32.dll 0x76010000 - 0x7605e000 C:\Windows\system32\GDI32.dll 0x75b00000 - 0x75b0a000 C:\Windows\system32\LPK.dll 0x75a50000 - 0x75aed000 C:\Windows\system32\USP10.dll 0x77030000 - 0x7704f000 C:\Windows\system32\IMM32.DLL 0x76db0000 - 0x76e7c000 C:\Windows\system32\MSCTF.dll 0x7c340000 - 0x7c396000 C:\Program Files\Java\jre6\bin\msvcr71.dll 0x6d800000 - 0x6daa7000 C:\Program Files\Java\jre6\bin\client\jvm.dll 0x755f0000 - 0x75622000 C:\Windows\system32\WINMM.dll 0x754a0000 - 0x754ec000 C:\Windows\system32\apphelp.dll 0x6d7b0000 - 0x6d7bc000 C:\Program Files\Java\jre6\bin\verify.dll 0x6d330000 - 0x6d34f000 C:\Program Files\Java\jre6\bin\java.dll 0x6d290000 - 0x6d298000 C:\Program Files\Java\jre6\bin\hpi.dll 0x76e80000 - 0x76e85000 C:\Windows\system32\PSAPI.DLL 0x6d7f0000 - 0x6d7ff000 C:\Program Files\Java\jre6\bin\zip.dll 0x10000000 - 0x10039000 E:\workspace\Zhy\JNITransObject.dll VM Arguments: jvm_args: -Dfile.encoding=GBK java_command: jni.JNITransObject Launcher Type: SUN_STANDARD Environment Variables: JAVA_HOME=C:\Program Files\Java\jdk1.6.0_21 CLASSPATH=.;C:\Program Files\Java\jdk1.6.0_21\lib\dt.jar;C:\Program Files\Java\jdk1.6.0_21\lib\tools.jar PATH=C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:/Program Files/Java/jre6/lib/i386;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files\AMD APP\bin\x86;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files\Common Files\Lenovo;C:\Program Files\Common Files\Ulead Systems\MPEG;C:\Program Files\Windows Live\Shared;C:\SWTOOLS\ReadyApps;C:\Program Files\Intel\Services\IPT\;C:\Program Files\Symantec\VIP Access Client\;C:\Program Files\Java\jdk1.6.0_21\bin;C:\Program Files\Java\jdk1.6.0_21\jre6\bin;C:\Program Files\TortoiseSVN\bin;C:\Program Files\Common Files\Thunder Network\KanKan\Codecs USERNAME=think OS=Windows_NT PROCESSOR_IDENTIFIER=x86 Family 6 Model 42 Stepping 7, GenuineIntel --------------- S Y S T E M --------------- OS: Windows 7 Build 7601 Service Pack 1 CPU:total 4 (8 cores per cpu, 2 threads per core) family 6 model 42 stepping 7, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, ht Memory: 4k page, physical 3056880k(1883100k free), swap 6112004k(3307764k free) vm_info: Java HotSpot(TM) Client VM (17.0-b16) for windows-x86 JRE (1.6.0_21-b06), built on Jun 22 2010 00:56:49 by "java_re" with MS VC++ 7.1 (VS2003) time: Wed Apr 11 09:46:47 2012 elapsed time: 0 seconds

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When such errors occur, most of them are caused by problems with the JNI side code, such as: Inappropriate printf and cout calls, incompatible method call types, calling destroyed objects, etc.

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