Core dump in 238th call to CallObjectMethod

Question

Hi,
Please can anyone help me with this problem. I have searched net but couldnt find an answer. I have a C code. this function when called in a for loop for 238th time it fails at exactly myjstr = (jstring) env->CallObjectMethod(obj, mid,args,args1);
c code:
char* getComplexTag(JNIEnv *env, jclass cls, jobject obj, char complexTag[50][100] ,char complexValue[50][100])
jmethodID mid;
jobjectArray args;
jobjectArray args1;
jstring myjstr;
char errorMessage[10];
char returnTag[1024];
char infoMessage [1024];\
int arrayCount;
strcpy(errorMessage,"ERROR");
mid = env->GetMethodID(cls,"getKeyValue", "([Ljava/lang/String;[Ljava/lang/String;)Ljava/lang/String;");
if (mid == 0)
{return errorMessage;}
arrayCount = 0;
args = env->NewObjectArray(8, strClass, newStr);
while(strlen(complexTag[arrayCount]) > 0 )
jstring temp1=env->NewStringUTF(complexTag[arrayCount]);
env->SetObjectArrayElement(args,arrayCount,temp1);
env->ReleaseStringUTFChars(temp1,complexTag[arrayCount]);
//env->SetObjectArrayElement(args,arrayCount,env->NewStringUTF(complexTag[arrayCount]));
arrayCount = arrayCount + 1;
arrayCount = 0;
args1 = env->NewObjectArray(8, strClass, newStr);
while( strlen(complexValue[arrayCount]) > 0 )
jstring temp1=env->NewStringUTF(complexValue[arrayCount]);
env->SetObjectArrayElement(args1,arrayCount,temp1);
env->ReleaseStringUTFChars(temp1,complexValue[arrayCount]);
//env->SetObjectArrayElement(args1,arrayCount,env->NewStringUTF(complexValue[arrayCount]));
arrayCount = arrayCount + 1;
if (args == 0)
{return errorMessage; }
myjstr = (jstring) env->CallObjectMethod(obj, mid,args,args1);
if(myjstr != NULL)
const char *temp=env->GetStringUTFChars(myjstr, 0);
strcpy(returnTag,temp);
env->ReleaseStringUTFChars(myjstr, temp);
if(env != NULL && myjstr != NULL)
{ env->DeleteLocalRef(myjstr); }
if(env != NULL && args != NULL)
{ env->DeleteLocalRef(args); }
if(env != NULL && args1 != NULL)
{ env->DeleteLocalRef(args1); }
mid = NULL;
return returnTag;
}

Answer 1

You can start by...
1. Verify that every JNI call to check is checked for errors.
2. Every call that does a java type call must be checked for exceptions after it.
Note that if an exception occurs and you do not catch it then continuing with java calls will likely lead to corruption.