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I'm trying to create an Android Application that can verify a face But when I try to run my app on my emulator (using Eclipse), I have this result in my logcat:
06-16 14:51:24.326: E/AndroidRuntime(4305): FATAL EXCEPTION: main
06-16 14:51:24.326: E/AndroidRuntime(4305): Process: com.neurotec.samples.faceverification, PID: 4305
06-16 14:51:24.326: E/AndroidRuntime(4305): java.lang.ExceptionInInitializerError
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.neurotec.view.NGui.<clinit>(NGui.java:56)
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.neurotec.view.NViewBase.<clinit>(NViewBase.java:30)
06-16 14:51:24.326: E/AndroidRuntime(4305): at java.lang.reflect.Constructor.constructNative(Native Method)
06-16 14:51:24.326: E/AndroidRuntime(4305): at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.view.LayoutInflater.createView(LayoutInflater.java:594)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:341)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.app.Activity.setContentView(Activity.java:1975)
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.neurotec.samples.faceverification.FaceVerificationApplication.onCreate(FaceVerificationApplication.java:46)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.app.Activity.performCreate(Activity.java:5370)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2331)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2422)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.app.ActivityThread.access$800(ActivityThread.java:151)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.os.Handler.dispatchMessage(Handler.java:110)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.os.Looper.loop(Looper.java:193)
06-16 14:51:24.326: E/AndroidRuntime(4305): at android.app.ActivityThread.main(ActivityThread.java:5330)
06-16 14:51:24.326: E/AndroidRuntime(4305): at java.lang.reflect.Method.invokeNative(Native Method)
06-16 14:51:24.326: E/AndroidRuntime(4305): at java.lang.reflect.Method.invoke(Method.java:515)
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828)
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644)
06-16 14:51:24.326: E/AndroidRuntime(4305): at dalvik.system.NativeStart.main(Native Method)
06-16 14:51:24.326: E/AndroidRuntime(4305): Caused by: java.lang.ExceptionInInitializerError
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.neurotec.media.NMedia.<clinit>(NMedia.java:49)
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.neurotec.view.NGui.<clinit>(NGui.java:47)
06-16 14:51:24.326: E/AndroidRuntime(4305): ... 26 more
06-16 14:51:24.326: E/AndroidRuntime(4305): Caused by: java.lang.ExceptionInInitializerError
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.neurotec.lang.NCore.<clinit>(NCore.java:140)
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.neurotec.lang.NTypes.<clinit>(NTypes.java:171)
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.neurotec.media.NMedia.<clinit>(NMedia.java:46)
06-16 14:51:24.326: E/AndroidRuntime(4305): ... 27 more
06-16 14:51:24.326: E/AndroidRuntime(4305): Caused by: java.lang.NoClassDefFoundError: com.sun.jna.Platform
06-16 14:51:24.326: E/AndroidRuntime(4305): at com.neurotec.lang.NCore.<clinit>(NCore.java:123)
06-16 14:51:24.326: E/AndroidRuntime(4305): ... 29 more
The code for FaceVerificationApplication.java is as follows :
public class FaceVerificationApplication extends BaseActivity implements
EnrollmentDialogListener, UserSelectionListener {
// ===========================================================
// Private fields
// ===========================================================
private static final String EXTRA_REQUEST_CODE = "request_code";
private static final int VERIFICATION_REQUEST_CODE = 1;
private static final int TIMEOUT = 60000;
private boolean mAppClosing;
private NFaceVerificationView mFaceView;
// ===========================================================
// Protected methods
// ===========================================================
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_nlvdemo);
// on application start you must set NCore context
NCore.setContext(this);
new Thread(new Runnable() {
@Override
public void run() {
try {
showProgress(R.string.msg_initialising);
// get NFV for the first time
final NFaceVerification nfv = NFV.getInstance();
// load settings
SettingsFragment.loadSettings();
// button implementations
Button mEnrollButton = (Button) findViewById(R.id.button_enroll);
mEnrollButton
.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
EnrollmentDialogFragment enrollDialog = new EnrollmentDialogFragment();
enrollDialog.show(getFragmentManager(),
"enrollment");
}
});
Button mCancelButton = (Button) findViewById(R.id.button_cancel);
mCancelButton
.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showProgress(R.string.msg_cancelling);
nfv.cancel();
hideProgress();
}
});
Button mVerifyButton = (Button) findViewById(R.id.button_verify);
mVerifyButton
.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Bundle bundle = new Bundle();
bundle.putInt(EXTRA_REQUEST_CODE,
VERIFICATION_REQUEST_CODE);
UserListFragment userList = (UserListFragment) UserListFragment
.newInstance(nfv.getUsers(), true,
bundle);
userList.show(getFragmentManager(),
"verification");
}
});
// set frontal camera
String[] names = nfv.getAvailableCameraNames();
for (String n : names) {
if (n.contains("Front")) {
nfv.setCamera(n);
break;
}
}
mFaceView = (NFaceVerificationView) findViewById(R.id.nFaceView);
nfv.addCapturePreviewListener(new NFaceVerificationCapturePreviewListener() {
@Override
public void capturePreview(
NFaceVerificationCapturePreviewEvent arg0) {
mFaceView.setEvent(arg0);
}
});
hideProgress();
} catch (Exception ex) {
hideProgress();
showError(ex);
}
}
}).start();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.nlvdemo, menu);
return true;
}
@Override
public void onBackPressed() {
super.onBackPressed();
mAppClosing = true;
}
@Override
public void onEnrollmentIDProvided(final String id) {
new Thread(new Runnable() {
@Override
public void run() {
try {
// cancel in there are any other operations in progress
NFV.getInstance().cancel();
NFaceVerificationStatus status = NFV.getInstance().enroll(
id, TIMEOUT, null);
showInfo(String.format(
getString(R.string.msg_operation_status),
status.toString()));
} catch (Throwable e) {
showError(e);
}
}
}).start();
};
@Override
public void onUserSelected(final NFaceVerificationUser user, Bundle bundle) {
new Thread(new Runnable() {
@Override
public void run() {
try {
// cancel in there are any other operations in progress
NFV.getInstance().cancel();
NFaceVerificationStatus status = NFV.getInstance().verify(
user.getId(), TIMEOUT);
showInfo(String.format(
getString(R.string.msg_operation_status),
status.toString()));
} catch (Throwable e) {
showError(e);
}
}
}).start();
};
@Override
protected void onStop() {
if (mAppClosing) {
NFV.getInstance().cancel();
NFV.dispose();
}
super.onStop();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_clear_db) {
new Thread(new Runnable() {
@Override
public void run() {
// cancel if there are any other operations in progress
NFV.getInstance().cancel();
NFV.getInstance().getUsers().clear();
}
}).start();
return true;
} else if (id == R.id.action_settings) {
Intent intent = new Intent(this, SettingsActivity.class);
startActivity(intent);
return true;
}
return super.onOptionsItemSelected(item);
}
}
How can I solve this exception ? Any advice is of great help .
403
We can resolve the java. lang. ExceptionInInitializerError by ensuring that static initializer block of classes does not throw any Runtime Exception. We can resolve also resolve this exception by ensuring that the initializing static variable of classes also doesn't throw any Runtime Exception.
An ExceptionInInitializerError is thrown to indicate that an exception occurred during evaluation of a static initializer or the initializer for a static variable. As of release 1.4, this exception has been retrofitted to conform to the general purpose exception-chaining mechanism.
Hi my problems has solved . I have to add jna-4.2.2.jar into my projects . I have got errors about native libraries in jna.jar . So in this case , in Eclipse , I have to go to Preferences > Android > Build > uncheck "Force error when external jars contain native libraries". Then my problem is solved .
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