Destroy JVM hangs the program

SasDutta

Hi

My program hangs when i try to destroy jvm by following statement.

(*jvm)->DestroyJavaVM(jvm);

I have created JVM by following code

int createJVMEnv(void)
{

    JavaVMInitArgs vm_args;
    JavaVMOption options[15];

    int res;
    if (env != NULL)
        return SUCCESS;

    const char * aim_class_path =getenv("AIM_CLASS_PATH");

    if( aim_class_path == NULL )
    {
    WriteLog(FATAL, "CLASSPATH variable is not set in the environment\n");
    }

    if(aim_class_path!=NULL)
    {
        char buf[5000];
        sprintf(buf,"-Djava.class.path=%s",aim_class_path);
        options[0].optionString=strdup(buf);
    }


    options[1].optionString="-DSystemMode=EJB";
    options[2].optionString="-Xms512m";
    options[3].optionString="-Xmx8192m";

    options[4].optionString="-Dfltsked.contextFactory=weblogic.jndi.WLInitialContextFactory";
    options[5].optionString="-Dfltsked.remoteObjectLocatorProviderURL=t3://aopcpscm.opc.ual.com:10001";
    /*options[5].optionString="-Dfltsked.remoteObjectLocatorProviderURL=t3://aopcqscmapp01.opc.ual.com:7001";*/

    options[6].optionString="-Dfltsked.user.loginID=u298724";

    options[7].optionString="-Dlog4j.rootLogger=OFF";
    options[8].optionString="-Dbatchmode.process=true";
    options[9].optionString="-Dweblogic.MaxMessageSize=1000000000";
    options[10].optionString="-Dweblogic.StuckThreadMaxTime=600";
    options[11].optionString="-Dweblogic.CompleteMessageTimeout=480";

    options[12].optionString="-Xcheck:jni";
    options[13].optionString="-Xnoclassgc";
    options[14].optionString="-Djava.compiler=NONE";
   vm_args.version = JNI_VERSION_1_6;
    vm_args.options = options;
    vm_args.nOptions = 15;
    vm_args.ignoreUnrecognized = JNI_TRUE;

    res = JNI_CreateJavaVM(&jvm, (void**)&env, &vm_args);

    if (res < 0) {
        WriteLog(FATAL, "Can't create Java VM\n");
        return FAILURE;
    }
    if ((*env)->ExceptionOccurred(env))
    {
        (*env)->ExceptionDescribe(env);
        return NULL;
    }


    return SUCCESS;
}

Can anyone help how can i destroy the jvm? jvm and env are global variable.

Thanks
Sas

Edited by: SasDutta on Jun 16, 2011 10:11 AM

EJP

My program hangs when i try to destroy jvm

It is waiting for the other non-daemon threads to exit, as per the documentation.

jschellSomeoneStoleMyAlias

SasDutta wrote:
(*jvm)->DestroyJavaVM(jvm);

What are you trying to accomplish with that?

You might want to first investigate if that method does anything. In the past in the Sun/Oracle VM it did little or nothing.