HotSpot Virtual Machine Error
First, I' sorry that I don't write English well.
I have an error my JNI program with C program.
Error message same to bellow.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x6d4483d7
Function name=(N/A)
Library=c:\jdk1.3\jre\bin\hotspot\jvm.dll
NOTE: We are unable to locate the function name symbol for the error
just occurred. Please refer to release documentation for possible
reason and solutions.
Current Java thread:
at JavaCipher.encryptFile(Native Method)
at JavaCipher.<init>(JavaCipher.java:32)
at CallSecureDocDll.main(CallSecureDocDll.java:34)
Dynamic libraries:
0x00400000 - 0x00405000 c:\jdk1.3\bin\java.exe
0x77F80000 - 0x77FFB000 C:\WINNT\System32\ntdll.dll
0x77D80000 - 0x77DDB000 C:\WINNT\system32\ADVAPI32.dll
0x77E50000 - 0x77F33000 C:\WINNT\system32\KERNEL32.DLL
0x77D10000 - 0x77D80000 C:\WINNT\system32\RPCRT4.DLL
0x78000000 - 0x78046000 C:\WINNT\system32\MSVCRT.dll
0x6D420000 - 0x6D4F0000 c:\jdk1.3\jre\bin\hotspot\jvm.dll
0x77DE0000 - 0x77E44000 C:\WINNT\system32\USER32.dll
0x77F40000 - 0x77F7C000 C:\WINNT\system32\GDI32.DLL
0x77520000 - 0x77550000 C:\WINNT\System32\WINMM.dll
0x75DF0000 - 0x75E0A000 C:\WINNT\System32\IMM32.DLL
0x6D220000 - 0x6D227000 c:\jdk1.3\jre\bin\hpi.dll
0x6D3B0000 - 0x6D3BD000 c:\jdk1.3\jre\bin\verify.dll
0x6D250000 - 0x6D266000 c:\jdk1.3\jre\bin\java.dll
0x6D3C0000 - 0x6D3CD000 c:\jdk1.3\jre\bin\zip.dll
0x10000000 - 0x1006C000 D:\SecureDoc\Server\class\SecureDoc\libcrypt.dll
0x778F0000 - 0x77913000 C:\WINNT\system32\imagehlp.dll
0x72920000 - 0x7294D000 C:\WINNT\system32\DBGHELP.dll
0x68BD0000 - 0x68BDB000 C:\WINNT\System32\PSAPI.DLL
Local Time = Fri Apr 12 17:03:36 2002
Elapsed Time = 0
#
# HotSpot Virtual Machine Error : EXCEPTION_ACCESS_VIOLATION
# Error ID : 4F530E43505002C4
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Client VM (1.3.1_02-b02 mixed mode)
#
and Java Source same to bellow.
// native method declare
native void cipher_init();
native int encryptFile( DocInfo info, int algo, int mode );
native int decryptFile( DocInfo info );
// load library
static {
System.loadLibrary("libcrypt");
}
// call encrypt method
public JavaCipher(String srv_no, String user_id, String pc_no, String make_date,
String user_name, String expire_date, String orign_doc_name, String orign_type,
String sdf_doc_name, char support_offline, char assign_access_level, byte encrypt_key[])
{
DocInfo dinfo = new DocInfo(srv_no, user_id, pc_no, make_date, user_name, expire_date,
orign_doc_name, orign_type, sdf_doc_name, support_offline, assign_access_level,
encrypt_key);
cipher_init();
int ret = encryptFile(dinfo, CIPHER_ALGO_3DES, CIPHER_MODE_CBC);
}
and C source same to bellow
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#if (PLATFORM == PLATFORM_UNIX)
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include "types.h"
#include "cipher.h"
#include "encode.h"
#ifdef JDK
#include "jni.h"
#include "JavaCipher.h"
#endif
#ifdef JDK
JNIEXPORT void JNICALL Java_JavaCipher_cipher_1init (JNIEnv *env, jobject obj)
{
cipher_init();
}
static void JavaChar2C(JNIEnv *env, jclass cls, jobject obj, char *field, char *dst)
{
jfieldID fid;
jchar j_char;
fid= (*env)->GetFieldID(env, cls, field, "C");
j_char = (*env)->GetCharField(env, obj, fid);
*dst= (char)j_char;
}
static void JavaString2C(JNIEnv *env, jclass cls, jobject obj, char *field, char *dst)
{
jfieldID fid;
jstring j_str;
const char *c_str;
fid= (*env)->GetFieldID(env, cls, field, "Ljava/lang/String;");
j_str = (*env)->GetObjectField(env, obj, fid);
c_str = (*env)->GetStringUTFChars(env, j_str, 0);
strcpy(dst, c_str);
(*env)->ReleaseStringUTFChars(env, j_str, c_str);
}
static void JavaKey2C(JNIEnv *env, jclass cls, jobject obj, char *field, char *dst)
{
int i;
jfieldID fid;
jbyteArray j_array;
jbyte *j_byte;
fid= (*env)->GetFieldID(env, cls, field, "[B");
j_array = (*env)->GetObjectField(env, obj, fid);
j_byte = (*env)->GetByteArrayElements(env, j_array, 0);
for(i=0; i < KEY_LEN; i++){
dst = (char) j_byte;
}
(*env)->ReleaseByteArrayElements(env, j_array, j_byte, 0);
}
JNIEXPORT jint JNICALL Java_JavaCipher_encryptFile
(JNIEnv *env, jobject obj, jobject j_info, jint algo, jint mode)
{
struct docinfo_t info;
jclass cls = (*env)->GetObjectClass(env, j_info);
JavaString2C(env, cls, j_info, "srv_no", info.srv_no);
JavaString2C(env, cls, j_info, "user_id", info.user_id);
JavaString2C(env, cls, j_info, "pc_no", info.pc_no);
JavaString2C(env, cls, j_info, "make_date", info.make_date);
JavaString2C(env, cls, j_info, "user_name", info.user_name);
JavaString2C(env, cls, j_info, "expire_date", info.expire_date);
JavaString2C(env, cls, j_info, "orign_doc_name", info.orign_doc_name);
JavaString2C(env, cls, j_info, "orign_doc_type", info.orign_doc_type);
JavaString2C(env, cls, j_info, "sdf_doc_name", info.sdf_doc_name);
JavaChar2C(env, cls, j_info, "support_offline", &info.support_offline);
JavaChar2C(env, cls, j_info, "assign_access_level", &info.assign_access_level);
JavaKey2C(env, cls, j_info, "encrypt_key", info.encrypt_key);
return encryptFile(&info, algo, mode);
}
/*************************************************************************/
static void C2JavaString(JNIEnv *env, jclass cls, jobject obj, char *field, char *src)
{
jfieldID fid;
jstring j_str = (*env)->NewStringUTF(env, src);
fid= (*env)->GetFieldID(env, cls, field, "Ljava/lang/String;");
(*env)->SetObjectField(env, obj, fid, j_str);
}
static void C2JavaChar(JNIEnv *env, jclass cls, jobject obj, char *field, char *src)
{
jfieldID fid;
jchar j_char = (jchar)*src;
fid= (*env)->GetFieldID(env, cls, field, "C");
(*env)->SetCharField(env, obj, fid, j_char);
}
static void C2JavaKey(JNIEnv *env, jclass cls, jobject obj, char *field, char *src)
{
jfieldID fid;
jbyteArray j_array = (*env)->NewByteArray(env, KEY_LEN);
fid= (*env)->GetFieldID(env, cls, field, "[B");
(*env)->SetByteArrayRegion(env, j_array, 0, KEY_LEN, (jbyte *)src);
(*env)->SetObjectField(env, obj, fid, j_array);
}
JNIEXPORT jint JNICALL Java_JavaCipher_decryptFile
(JNIEnv *env, jobject obj, jobject j_info)
{
int ret;
struct docinfo_t info;
jclass cls = (*env)->GetObjectClass(env, j_info);
JavaChar2C(env, cls, j_info, "support_offline", &info.support_offline);
JavaString2C(env, cls, j_info, "sdf_doc_name", info.sdf_doc_name);
ret=decryptFile(&info);
C2JavaString(env, cls, j_info, "srv_no", info.srv_no);
C2JavaString(env, cls, j_info, "user_id", info.user_id);
C2JavaString(env, cls, j_info, "pc_no", info.pc_no);
C2JavaString(env, cls, j_info, "make_date", info.make_date);
C2JavaString(env, cls, j_info, "user_name", info.user_name);
C2JavaString(env, cls, j_info, "expire_date", info.expire_date);
C2JavaString(env, cls, j_info, "orign_doc_name", info.orign_doc_name);
C2JavaString(env, cls, j_info, "orign_doc_type", info.orign_doc_type);
C2JavaChar(env, cls, j_info, "assign_access_level", &info.assign_access_level);
C2JavaKey(env, cls, j_info, "encrypt_key", info.encrypt_key);
return ret;
}
#endif
In C source, every native function call anthor C function.
[Example : Java_JavaCipher_cipher_1init() function call cipher_init() in anthor C source]
Please help me why this error was occured!
