Android "java.lang.noclassdeffounderror" exception
- by wpbnewbie
Hello,
I have a android webservice client application. I am trying to use the java standard WS library support. I have stripped the application down to the minimum, as shown below, to try and isolate the issue. Below is the applicaiton,
package fau.edu.cse;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class ClassMap extends Activity {
TextView displayObject;
@Override
public void onCreate(Bundle savedInstanceState) {
// Build Screen Display String
String screenString = "Program Started\n\n";
// Set up the display
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
displayObject = (TextView)findViewById(R.id.TextView01);
screenString = screenString + "Inflate Disaplay\n\n";
try {
// Set up Soap Service
TempConvertSoap service = new TempConvert().getTempConvertSoap();
// Successful Soap Object Build
screenString = screenString + "SOAP Object Correctly Build\n\n";
// Display Response
displayObject.setText(screenString);
}
catch(Throwable e){
e.printStackTrace();
displayObject.setText(screenString +"Try Error...\n" + e.toString());
}
}
}
The classes tempConvert and tempConvertSoap are in the package fau.edu.cse. I have included the java SE javax libraries in the java build pasth. When the android application tries to create the "service" object I get a "java.lang.noclassdeffounderror" exception. The two classes tempConvertSoap and TempConvet() are generated by wsimport. I am also using several libraries from javax.jws.. and javax.xml.ws.. Of course the application compiles without error and loads correctly. I know the application is running becouse my "try/catch" routine is successfully catching the error and printing it out. Here is what is in the logcat says (notice that it cannot find TempConvert),
06-12 22:58:39.340: WARN/dalvikvm(200): Unable to resolve superclass of Lfau/edu/cse/TempConvert; (53)
06-12 22:58:39.340: WARN/dalvikvm(200): Link of class 'Lfau/edu/cse/TempConvert;' failed
06-12 22:58:39.340: ERROR/dalvikvm(200): Could not find class 'fau.edu.cse.TempConvert', referenced from method fau.edu.cse.ClassMap.onCreate
06-12 22:58:39.340: WARN/dalvikvm(200): VFY: unable to resolve new-instance 21 (Lfau/edu/cse/TempConvert;) in Lfau/edu/cse/ClassMap;
06-12 22:58:39.340: DEBUG/dalvikvm(200): VFY: replacing opcode 0x22 at 0x0027
06-12 22:58:39.340: DEBUG/dalvikvm(200): Making a copy of Lfau/edu/cse/ClassMap;.onCreate code (252 bytes)
06-12 22:58:39.490: DEBUG/dalvikvm(30): GC freed 2 objects / 48 bytes in 273ms
06-12 22:58:39.530: DEBUG/ddm-heap(119): Got feature list request
06-12 22:58:39.620: WARN/Resources(200): Converting to string: TypedValue{t=0x12/d=0x0 a=2 r=0x7f050000}
06-12 22:58:39.620: WARN/System.err(200): java.lang.NoClassDefFoundError: fau.edu.cse.TempConvert
06-12 22:58:39.830: WARN/System.err(200): at fau.edu.cse.ClassMap.onCreate(ClassMap.java:26)
06-12 22:58:39.830: WARN/System.err(200): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
06-12 22:58:39.830: WARN/System.err(200): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
06-12 22:58:39.830: WARN/System.err(200): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
06-12 22:58:39.830: WARN/System.err(200): at android.app.ActivityThread.access$2200(ActivityThread.java:119)
06-12 22:58:39.880: WARN/System.err(200): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
06-12 22:58:39.880: WARN/System.err(200): at android.os.Handler.dispatchMessage(Handler.java:99)
06-12 22:58:39.880: WARN/System.err(200): at android.os.Looper.loop(Looper.java:123)
06-12 22:58:39.880: WARN/System.err(200): at android.app.ActivityThread.main(ActivityThread.java:4363)
06-12 22:58:39.880: WARN/System.err(200): at java.lang.reflect.Method.invokeNative(Native Method)
06-12 22:58:39.880: WARN/System.err(200): at java.lang.reflect.Method.invoke(Method.java:521)
06-12 22:58:39.880: WARN/System.err(200): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
06-12 22:58:39.880: WARN/System.err(200): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
06-12 22:58:39.880: WARN/System.err(200): at dalvik.system.NativeStart.main(Native Method)
...bla...bla...bla
It would be great if someone just had an answer, however I am looking at debug strategies. I have taken this same application and created a standard java client application and it works fine -- of course with all of the android stuff taken out. What would be a good debug strategy? What methods and techniques would you recommend I try and isolate the problem? I am thinking that there is some sort of Dalvik VM incompatibility that is causing the TempConvert class not to load. TempConvert is an interface class that references a lot of very tricky webservice attributes. Any help with debug strategies would be gladly appreciated.
Thanks for the help,
Steve
