Class not found when unmarshalling

Question

Im trying to pass objects between fragments, and i use Parcelable interface.

Here is my class but something is messed up with the ArrayList property, as i got:

java.lang.ClassNotFoundException: hu.company.myapp.modul.RaceDayUnit

and my class has an ArrayList of RaceDayUnits. All was worked properly until i started to use ArrayList.

Please help if you can.

My class:

public class RegattaUnit implements Parcelable {

public String id;
public String name;
public String type;
public String status;
public String token;

public ArrayList<RaceDayUnit> raceDays = new ArrayList<RaceDayUnit>();


public static class Status {
    public static String NEW = "invited";
    public static String JOINED = "joined";
    public static String DECLINED = "declined";
}

public RegattaUnit() {
}

// not used at all
@Override
public int describeContents() {
    return 0;
}

@Override
public void writeToParcel(Parcel out, int flags) {
    out.writeString(id);
    out.writeString(name);
    out.writeString(type);
    out.writeString(status);
    out.writeString(token);
    out.writeList(raceDays);
}

private RegattaUnit(Parcel in) {
    id = in.readString();
    name = in.readString();
    type = in.readString();
    status = in.readString();
    token = in.readString();

    raceDays = new ArrayList<RaceDayUnit>();
    in.readList(raceDays, null);
}


public static final Creator<RegattaUnit> CREATOR = new Creator<RegattaUnit>() {

    public RegattaUnit createFromParcel(Parcel in) {
        return new RegattaUnit(in);
    }

    public RegattaUnit[] newArray(int size) {
        return new RegattaUnit[size];
    }
};

 public RegattaUnit(JSONObject regattaJSONObject, String status) throws JSONException {

  //parsing from a jsonObject, the ArrayList is getting filled here.


    }




}


}

And log output:

04-27 12:54:23.014: E/Parcel(9257): Class not found when unmarshalling: hu.mycomp.myapp.modul.RaceDayUnit
    04-27 12:54:23.014: E/Parcel(9257): java.lang.ClassNotFoundException: hu.mycomp.myapp.modul.RaceDayUnit
    04-27 12:54:23.014: E/Parcel(9257):     at java.lang.Class.classForName(Native Method)
    04-27 12:54:23.014: E/Parcel(9257):     at java.lang.Class.forName(Class.java:309)
    04-27 12:54:23.014: E/Parcel(9257):     at java.lang.Class.forName(Class.java:273)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.Parcel.readParcelableCreator(Parcel.java:2281)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.Parcel.readParcelable(Parcel.java:2245)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.Parcel.readValue(Parcel.java:2152)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.Parcel.readListInternal(Parcel.java:2526)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.Parcel.readList(Parcel.java:1661)
    04-27 12:54:23.014: E/Parcel(9257):     at hu.mycomp.myapp.modul.RegattaUnit.<init>(RegattaUnit.java:58)
    04-27 12:54:23.014: E/Parcel(9257):     at hu.mycomp.myapp.RegattaUnit.<init>(RegattaUnit.java:14)
    04-27 12:54:23.014: E/Parcel(9257):     at hu.mycomp.myapp.RegattaUnit$1.createFromParcel(RegattaUnit.java:113)
    04-27 12:54:23.014: E/Parcel(9257):     at hu.mycomp.myapp.RegattaUnit$1.createFromParcel(RegattaUnit.java:110)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.Parcel.readParcelable(Parcel.java:2252)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.Parcel.readValue(Parcel.java:2152)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.Parcel.readArrayMapInternal(Parcel.java:2485)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.BaseBundle.unparcel(BaseBundle.java:221)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.BaseBundle.getString(BaseBundle.java:918)
    04-27 12:54:23.014: E/Parcel(9257):     at hu.mycomp.myapp.service.GpsService.onStartCommand(GpsService.java:117)
    04-27 12:54:23.014: E/Parcel(9257):     at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2894)
    04-27 12:54:23.014: E/Parcel(9257):     at android.app.ActivityThread.access$2100(ActivityThread.java:151)
    04-27 12:54:23.014: E/Parcel(9257):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1401)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.Handler.dispatchMessage(Handler.java:102)
    04-27 12:54:23.014: E/Parcel(9257):     at android.os.Looper.loop(Looper.java:135)
    04-27 12:54:23.014: E/Parcel(9257):     at android.app.ActivityThread.main(ActivityThread.java:5254)
    04-27 12:54:23.014: E/Parcel(9257):     at java.lang.reflect.Method.invoke(Native Method)
    04-27 12:54:23.014: E/Parcel(9257):     at java.lang.reflect.Method.invoke(Method.java:372)
    04-27 12:54:23.014: E/Parcel(9257):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
    04-27 12:54:23.014: E/Parcel(9257):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
    04-27 12:54:23.014: E/Parcel(9257): Caused by: java.lang.ClassNotFoundException: Didn't find class "hu.mycomp.myapp.modul.RaceDayUnit" on path: DexPathList[[directory "."],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
    04-27 12:54:23.014: E/Parcel(9257):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    04-27 12:54:23.014: E/Parcel(9257):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
    04-27 12:54:23.014: E/Parcel(9257):     at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
    04-27 12:54:23.014: E/Parcel(9257):     ... 28 more
    04-27 12:54:23.014: E/Parcel(9257):     Suppressed: java.lang.ClassNotFoundException: hu.mycomp.myapp.modul.RaceDayUnit
    04-27 12:54:23.014: E/Parcel(9257):         at java.lang.Class.classForName(Native Method)
    04-27 12:54:23.014: E/Parcel(9257):         at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
    04-27 12:54:23.014: E/Parcel(9257):         at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
    04-27 12:54:23.014: E/Parcel(9257):         at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
    04-27 12:54:23.014: E/Parcel(9257):         ... 29 more
    04-27 12:54:23.014: E/Parcel(9257):     Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
    04-27 12:54:23.015: D/AndroidRuntime(9257): Shutting down VM
    04-27 12:54:23.021: E/AndroidRuntime(9257): FATAL EXCEPTION: main
    04-27 12:54:23.021: E/AndroidRuntime(9257): Process: hu.mycomp.myapp, PID: 9257
    04-27 12:54:23.021: E/AndroidRuntime(9257): java.lang.RuntimeException: Unable to start service hu.mycomp.myapp.service.GpsService@16aad1da with Intent { flg=0x4 cmp=hu.mycomp.myapp/.service.GpsService (has extras) }: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: hu.mycomp.myapp.modul.RaceDayUnit
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2911)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.app.ActivityThread.access$2100(ActivityThread.java:151)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1401)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.Handler.dispatchMessage(Handler.java:102)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.Looper.loop(Looper.java:135)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.app.ActivityThread.main(ActivityThread.java:5254)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at java.lang.reflect.Method.invoke(Native Method)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at java.lang.reflect.Method.invoke(Method.java:372)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
    04-27 12:54:23.021: E/AndroidRuntime(9257): Caused by: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: hu.mycomp.myapp.modul.RaceDayUnit
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.Parcel.readParcelableCreator(Parcel.java:2295)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.Parcel.readParcelable(Parcel.java:2245)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.Parcel.readValue(Parcel.java:2152)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.Parcel.readListInternal(Parcel.java:2526)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.Parcel.readList(Parcel.java:1661)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at hu.mycomp.myapp.modul.RegattaUnit.<init>(RegattaUnit.java:58)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at hu.mycomp.myapp.modul.RegattaUnit.<init>(RegattaUnit.java:14)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at hu.mycomp.myapp.modul.RegattaUnit$1.createFromParcel(RegattaUnit.java:113)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at hu.mycomp.myapp.modul.RegattaUnit$1.createFromParcel(RegattaUnit.java:110)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.Parcel.readParcelable(Parcel.java:2252)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.Parcel.readValue(Parcel.java:2152)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.Parcel.readArrayMapInternal(Parcel.java:2485)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.BaseBundle.unparcel(BaseBundle.java:221)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.os.BaseBundle.getString(BaseBundle.java:918)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at hu.mycomp.myapp.service.GpsService.onStartCommand(GpsService.java:117)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2894)
    04-27 12:54:23.021: E/AndroidRuntime(9257):     ... 9 more

score 4 · Accepted Answer · answered Apr 27 '15 at 11:10

4

Rather than passing in null to readList() as the second parameter, pass in the ClassLoader that has RaceUnit. If RegattaUnit and RaceUnit are both in the same app and DEX file, getClass().getClassLoader() or RaceUnit.class.getClassLoader() should work.

(and now I am wondering what the SI unit of regatta actually is... :-)

answered Apr 27 '15 at 11:10

CommonsWare

986,068
189
2,389
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Ok @commonsware, but what if I don't have any property list on my class, there is just primitive data types and still got the same error as Adam – AXSM Jul 22 '16 at 22:28
@AlexSanchez: I recommend that you ask a fresh Stack Overflow question, where you provide a [mcve], with your code and your stack trace. – CommonsWare Jul 22 '16 at 22:30
[Here](http://stackoverflow.com/q/38538751/1067450) is the question as you suggested. – AXSM Jul 23 '16 at 06:10

score -1 · Answer 2 · edited Jul 18 '16 at 07:44

-1

It says classNotFoundException, so probably RaceDayUnit class not in your classpath. Have check hu.mycomp.myapp.modul package is in your source package?

edited Jul 18 '16 at 07:44

Adam Varhegyi

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answered Apr 27 '15 at 11:26

erhanasikoglu

1,685
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Class not found when unmarshalling

2 Answers2