Android E/Parcel﹕ Class not found when unmarshalling (only on Samsung Tab3)
I've been unable to resolve why this error occurs, and only on a Samsung Tab3 device, running 4.4.2? It happens when my MainActivity starts another Activity, and passes a Parcelable class in the intent like so:
private void debugTest(TestParcel cfgOptions){
TestParcel cfgOptions = new TestParcel();
cfgOptions.setValue(15); //just to verify
Intent intent = new Intent(MainActivity.this, TestActivity.class);
intent.putExtra("cfgOptions", cfgOptions);
startActivityForResult(intent, DBG_TEST);
}
TestActivity gets the parcelable data like so:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.test_activity);
TestParcel cfgOptions = getIntent().getExtras().getParcelable("cfgOptions");
}
The class TestParcel:
import android.os.Parcel;
import android.os.Parcelable;
public class TestParcel implements Parcelable {
private long l_ucs_value = 0;
private String s_rx_number = "";
//constructor
public TestParcel() {
l_ucs_value = 0;
s_rx_number = "";
}
public void RxNumber(String s) {
s_rx_number = s;
}
public String RxNumber() {
return s_rx_number;
}
//-----------------------------------------------------------------------
public void setValue(long v){
l_ucs_value = v;
}
public long getValue(){ return l_ucs_value; }
protected TestParcel(Parcel in) {
l_ucs_value = in.readLong();
s_rx_number = in.readString();
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeLong(l_ucs_value);
dest.writeString(s_rx_number);
}
@SuppressWarnings("unused")
public static final Parcelable.Creator<TestParcel> CREATOR = new Parcelable.Creator<TestParcel>() {
@Override
public TestParcel createFromParcel(Parcel in) {
return new TestParcel(in);
}
@Override
public TestParcel[] newArray(int size) {
return new TestParcel[size];
}
};
}
Again, I only see this on the Samsung Tab3 device - but that's the device we need it to work on. Here's the samsung logcat:
02-18 08:05:55.393 2235-2571/? E/Parcel? Class not found when unmarshalling: com.vms.android.VersatileDEX.TestParcel
java.lang.ClassNotFoundException: com.vms.android.VersatileDEX.TestParcel
at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:251)
at java.lang.Class.forName(Class.java:216)
at android.os.Parcel.readParcelableCreator(Parcel.java:2133)
at android.os.Parcel.readParcelable(Parcel.java:2097)
at android.os.Parcel.readValue(Parcel.java:2013)
at android.os.Parcel.readArrayMapInternal(Parcel.java:2314)
at android.os.Bundle.unparcel(Bundle.java:249)
at android.os.Bundle.getString(Bundle.java:1118)
at android.content.Intent.getStringExtra(Intent.java:5148)
at com.android.server.am.ActivityStackSupervisor.startActivityLocked(ActivityStackSupervisor.java:1467)
at com.android.server.am.ActivityStackSupervisor.startActivityMayWait(ActivityStackSupervisor.java:1063)
at com.android.server.am.ActivityManagerService.startActivityAsUser(ActivityManagerService.java:4134)
at com.android.server.am.ActivityManagerService.startActivity(ActivityManagerService.java:4032)
at android.app.ActivityManagerNative.onTransact(ActivityManagerNative.java:159)
at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:2712)
at android.os.Binder.execTransact(Binder.java:404)
at dalvik.system.NativeStart.run(Native Method)
Caused by: java.lang.NoClassDefFoundError: com/vms/android/VersatileDEX/TestParcel
at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:251)
at java.lang.Class.forName(Class.java:216)
at android.os.Parcel.readParcelableCreator(Parcel.java:2133)
at android.os.Parcel.readParcelable(Parcel.java:2097)
at android.os.Parcel.readValue(Parcel.java:2013)
at android.os.Parcel.readArrayMapInternal(Parcel.java:2314)
at android.os.Bundle.unparcel(Bundle.java:249)
at android.os.Bundle.getString(Bundle.java:1118)
at android.content.Intent.getStringExtra(Intent.java:5148)
at com.android.server.am.ActivityStackSupervisor.startActivityLocked(ActivityStackSupervisor.java:1467)
at com.android.server.am.ActivityStackSupervisor.startActivityMayWait(ActivityStackSupervisor.java:1063)
at com.android.server.am.ActivityManagerService.startActivityAsUser(ActivityManagerService.java:4134)
at com.android.server.am.ActivityManagerService.startActivity(ActivityManagerService.java:4032)
at android.app.ActivityManagerNative.onTransact(ActivityManagerNative.java:159)
at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:2712)
at android.os.Binder.execTransact(Binder.java:404)
at dalvik.system.NativeStart.run(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.vms.android.VersatileDEX.TestParcel" on path: DexPathList[[directory "."],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:67)
at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:251)
at java.lang.Class.forName(Class.java:216)
at android.os.Parcel.readParcelableCreator(Parcel.java:2133)
at android.os.Parcel.readParcelable(Parcel.java:2097)
at android.os.Parcel.readValue(Parcel.java:2013)
at android.os.Parcel.readArrayMapInternal(Parcel.java:2314)
at android.os.Bundle.unparcel(Bundle.java:249)
at android.os.Bundle.getString(Bundle.java:1118)
at android.content.Intent.getStringExtra(Intent.java:5148)
at com.android.server.am.ActivityStackSupervisor.startActivityLocked(ActivityStackSupervisor.java:1467)
at com.android.server.am.ActivityStackSupervisor.startActivityMayWait(ActivityStackSupervisor.java:1063)
at com.android.server.am.ActivityManagerService.startActivityAsUser(ActivityManagerService.java:4134)
at com.android.server.am.ActivityManagerService.startActivity(ActivityManagerService.java:4032)
at android.app.ActivityManagerNative.onTransact(ActivityManagerNative.java:159)
at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:2712)
at android.os.Binder.execTransact(Binder.java:404)
at dalvik.system.NativeStart.run(Native Method)
For some strange reason it looks like the class loader isn't set up properly.
Try one of the following in TestActivity.onCreate():
TestParcel cfgOptions = getIntent().getParcelableExtra("cfgOptions");
Intent intent = getIntent();
intent.setExtrasClassLoader(TestParcel.class.getClassLoader());
TestParcel cfgOptions = intent.getParcelableExtra("cfgOptions");
Bundle extras = getIntent().getExtras();
extras.setClassLoader(TestParcel.class.getClassLoader());
TestParcel cfgOptions = extras.getParcelable("cfgOptions");
Alternatively, wrap the parcelable into a bundle:
Bundle b = new Bundle();
b.putParcelable("options", cfgOptions);
Intent intent = new Intent(MDex.this, TestActivity.class);
intent.putExtra("bundle", b);
to get:
Bundle b = getIntent().getBundleExtra("bundle");
TestParcel cfgOptions = b.getParcelable("options");
In my case, new Intent().putExtra(key,parcelable) which internally auto creates new bundle gives me unmarshall error I don't know why, so I had to create new bundle by myself, add the parcelable on it and add the bundle on the intent. By doing so it solves the problem.
Just trying to be more concise and clear of the answer here -
//sending a parcelable class to another activity -----------------
MyParcelableOptionsClass mpoc = new MyParcelableOptionsClass();
Bundle b = new Bundle();
b.putParcelable("options", mpoc );
Intent intent = new Intent(MyActivity.this, OtherActivity.class);
intent.putExtra("bundle", b);
startActivityForResult(intent, 1);
//getting the parcelable class from OtherActivity------------------
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.other_activity);
Bundle b = getIntent().getBundleExtra("bundle");
MyParcelableOptionsClass mpoc = b.getParcelable("options");
}
//returning the parcelable class back from OtherActivity -----------
Bundle b = new Bundle();
b.putParcelable("options", mpoc);
Intent intent = new Intent();
intent.putExtra("bundle", b);
setResult(0, intent);
//and getting the parcelable class back in MyActivity --------------
onActivityResult(int requestCode, int resultCode, Intent data){
if(null != data){
Bundle b = data.getBundleExtra("bundle");
MyParcelableOptionsClass mpoc = b.getParcelable("options");
}
}