Name: krC82822 Date: 05/20/2001


orig synopsis: "Native call to ()F method produces bug report request"

20 May 2001, eval1127@eng -- reproducible with 1.3.0 and
final 1.3.1 release on Solaris 2.8.

NOT reproducible with merlin (1.4) beta build 65:
    java version "1.4.0-beta"
    Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b65)
    Java HotSpot(TM) Client VM (build 1.4.0-beta-b65, mixed mode)
----------------
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0)
Java HotSpot(TM) Client VM (build 1.3.0, mixed mode)


Error message:
#
# HotSpot Virtual Machine Error, Unexpected Signal 11
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Error ID: 4F533F534F4C415249530E435050079A 01
#
# Problematic Thread: prio=5 tid=0x2a180 nid=0x1 runnable
#
Abort (core dumped)

Java source code (AdderFrame.java)
import java.awt.*;
import java.awt.event.*;

public class AdderFrame extends Frame implements ActionListener
{

    TextField text1,text2,answertext;
    Label pluslabel;
    Button button1;

    public AdderFrame()
    {

        super("1st awt button thing");
        setSize(600,600);
        addWindowListener(new BasicWindowMonitor());

        Panel adderpanel = new Panel();

        text1 = new TextField(10);
        text1.setText("1.5");
        adderpanel.add(text1);

        pluslabel = new Label("+");
        adderpanel.add(pluslabel);

        text2 = new TextField(10);
        adderpanel.add(text2);

        button1 = new Button("=");
        adderpanel.add(button1);
        button1.addActionListener(this);

        answertext = new TextField(10);
        adderpanel.add(answertext);

        add(adderpanel);

    }

    public void actionPerformed(ActionEvent e)
    {

        if(e.getSource() == button1)
        {
            float sum = Float.parseFloat(text1.getText()) +
Float.parseFloat(text2.getText());
            answertext.setText(String.valueOf(sum));
            float dummy=getParam1();
        }

    }

    public float getParam1()
    {

        float value = Float.parseFloat(text1.getText());
        System.out.println(String.valueOf(value));
        return value;

    }

    public static void main(String[] args)
    {

        AdderFrame af1 = new AdderFrame();

        af1.setVisible(true);

    }

}


Java source code (BasicWindowMonitor.java)
import java.awt.event.*;
import java.awt.Window;

public class BasicWindowMonitor extends WindowAdapter
{

    public void windowClosing(WindowEvent e)
    {
        
        Window w = e.getWindow();
        w.setVisible(false);
        w.dispose();
        System.exit(0);

    }

}

C++ source code: (mainprog.cpp)
#include <jni.h>
#include <stdlib.h>

int main()
{

        JNIEnv *env;
        JavaVM *jvm;
        JavaVMInitArgs vm_args;
        JavaVMOption options[1];
        jint res;
        jclass cls;
        jmethodID mid,mid2;
        jstring jstr;
        jobjectArray args;
        char classpath[1024];

        options[0].optionString="-Dverbose";

        vm_args.version = JNI_VERSION_1_2;
        vm_args.options=options;
        vm_args.nOptions=1;
        vm_args.ignoreUnrecognized=JNI_TRUE;

        printf("1\n");

        printf("2\n");

        /*Create the java VM*/
        res=JNI_CreateJavaVM(&jvm,(void **)&env,&vm_args);

        printf("3\n");

        if(res<0){
                fprintf(stderr, "Can't create Java VM\n");
                exit(1);
        }

        printf("4\n");

        cls=env->FindClass("AdderFrame");

        if(cls==0){

                fprintf(stderr,"Can't find AdderFrame class\n");
                exit(1);

        }

        printf("5\n");

        mid=env->GetStaticMethodID(cls,"main","([Ljava/lang/String;)V");

        if(mid==0){

                fprintf(stderr,"Can't find AdderFrame.main\n");
                exit(1);

        }

        printf("6\n");

        jstr=env->NewStringUTF(" from C++!");
        if(jstr==0){

                fprintf(stderr,"Out of memory.\n");
                exit(1);

        }

        printf("7\n");

        args=env->NewObjectArray(1,env->FindClass("java/lang/String"),jstr);

        if(args==0){

                fprintf(stderr,"Out of memory.\n");
                exit(1);

        }

        printf("8\n");

        env->CallStaticVoidMethod(cls,mid,args);

        printf("9\n");

        mid2=env->GetMethodID(cls,"getParam1","()F");

        if(mid2==0)
        {
            fprintf(stderr,"Can't find AdderFrame.getParam1\n");
            exit(1);
        }

/* ERROR OCCURS HERE:*/

        float p1 = env->CallFloatMethod(cls,mid2);

/* END OF WHERE ERROR OCCURS */

        jvm->DestroyJavaVM();

}

---------

20 May 2001, eval1127@eng -- results for final 1.3.1 release on Solaris:

1
2
3
4
5
6
7
8
9

Unexpected Signal : 10 occurred at PC=0xff108c44
Function name=JVM_CurrentTimeMillis
Library=/space/j2sdk1_3_1/jre/lib/sparc/libjvm.so

Current Java thread:

Dynamic libraries:
0x10000 ./a.out
0xff000000 /space/j2sdk1_3_1/jre/lib/sparc/libjvm.so
0xff3a0000 /usr/lib/libdl.so.1
0xfefc0000 /usr/lib/libthread.so.1
0xff360000 /usr/dist/pkgs/devpro/5.x-sparc/lib/libm.so.1
0xfef50000 /usr/lib/libC.so.5
0xff390000 /usr/lib/libw.so.1
0xfee00000 /usr/lib/libc.so.1
0xfef10000 /usr/lib/libCrun.so.1
0xfeef0000 /usr/lib/libsocket.so.1
0xfed00000 /usr/lib/libnsl.so.1
0xfede0000 /usr/lib/libmp.so.2
0xfeed0000 /usr/platform/SUNW,Ultra-5_10/lib/libc_psr.so.1
0xfecd0000 /space/j2sdk1_3_1/jre/lib/sparc/native_threads/libhpi.so
0xfeca0000 /space/j2sdk1_3_1/jre/lib/sparc/libverify.so
0xfec50000 /space/j2sdk1_3_1/jre/lib/sparc/libjava.so
0xfec20000 /space/j2sdk1_3_1/jre/lib/sparc/libzip.so
0xfe2a0000 /usr/lib/locale/en_US.ISO8859-1/en_US.ISO8859-1.so.2
0xfe1e0000 /space/j2sdk1_3_1/jre/lib/sparc/libawt.so
0xfac80000 /space/j2sdk1_3_1/jre/lib/sparc/motif21/libmawt.so
0xfe180000 /space/j2sdk1_3_1/jre/lib/sparc/libmlib_image.so
0xf4980000 /usr/dt/lib/libXm.so.4
0xfd090000 /usr/openwin/lib/libXt.so.4
0xfe150000 /usr/openwin/lib/libXext.so.0
0xfe130000 /usr/openwin/lib/libXtst.so.1
0xf4880000 /usr/openwin/lib/libX11.so.4
0xfd3e0000 /usr/openwin/lib/libSM.so.6
0xfd060000 /usr/openwin/lib/libICE.so.6
0xf4780000 /space/j2sdk1_3_1/jre/lib/sparc/libfontmanager.so
0xfafa0000 /usr/openwin/lib/libdps.so.5
0xfd3b0000 /usr/openwin/lib/locale/common/xlibi18n.so.2
0xfd020000 /usr/openwin/lib/locale/common/ximlocal.so.2
0xfaee0000 /usr/openwin/lib/locale/iso8859-1/xomEuro.so.2
0xfaec0000 /usr/lib//liblayout.so

Local Time = Sun May 20 20:04:40 2001
Elapsed Time = 5
#
# HotSpot Virtual Machine Error : 10
# Error ID : 4F530E43505002CC 01
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Client VM (1.3.1-b24 mixed mode)
#
# An error report file has been saved as hs_err_pid20030.log.
# Please refer to the file for further information.
#
Abort (core dumped)


(Review ID: 123790)
======================================================================