Android app crashes while save attachment

[JintoJose]

Thanks for this module. I have been using version 1.2.1 on both iOS and Android.
It runs very well on iOS and Android devices and simulators..

However, in Android, the app crashes when try to save a model after an attachment is added to the model. I tried in Jelly Bean and Kit Kat. But this is working well in iOS.
This is what I could see from the logs .

[WARN] : W/System.err: java.lang.NullPointerException

[WARN] : W/System.err: at com.couchbase.lite.Database.generateIDForRevision(Database.java:3223)

[WARN] : W/System.err: at com.couchbase.lite.Database.putRevision(Database.java:3622)

[WARN] : W/System.err: at com.couchbase.lite.Database.putRevision(Database.java:3465)

[WARN] : W/System.err: at com.couchbase.lite.Document.putProperties(Document.java:415)

[WARN] : W/System.err: at com.couchbase.lite.UnsavedRevision.save(UnsavedRevision.java:114)

[WARN] : W/System.err: at com.obscure.titouchdb.UnsavedRevisionProxy.save(UnsavedRevisionProxy.java:50)

[WARN] : W/System.err: at org.appcelerator.kroll.runtime.v8.V8Object.nativeFireEvent(Native Method)

[WARN] : W/System.err: at org.appcelerator.kroll.runtime.v8.V8Object.fireEvent(V8Object.java:62)

[WARN] : W/System.err: at org.appcelerator.kroll.KrollProxy.doFireEvent(KrollProxy.java:908)

[WARN] : W/System.err: at org.appcelerator.kroll.KrollProxy.handleMessage(KrollProxy.java:1131)

[WARN] : W/System.err: at org.appcelerator.titanium.proxy.TiViewProxy.handleMessage(TiViewProxy.java:352)

[WARN] : W/System.err: at android.os.Handler.dispatchMessage(Handler.java:95)

[WARN] : W/System.err: at android.os.Looper.loop(Looper.java:153)

[WARN] : W/System.err: at org.appcelerator.kroll.KrollRuntime$KrollRuntimeThread.run(KrollRuntime.java:112)

[ERROR] : TiExceptionHandler: (main) [12011,92076] ----- Titanium Javascript Runtime Error -----

[ERROR] : TiExceptionHandler: (main) [0,92076] - In alloy/sync/titouchdb.js:1,69

[ERROR] : TiExceptionHandler: (main) [0,92076] - Message: Uncaught Error: Java Exception occurred

[ERROR] : TiExceptionHandler: (main) [1,92077] - Source: nt(this.id);if(o){var a=o.createRevision();a.setAttachment(e,t,i),a.save()}},e

[ERROR] : V8Exception: Exception occurred at alloy/sync/titouchdb.js:1: Uncaught Error: Java Exception occurred

[INFO] : SurfaceTextureClient: [0x539e0fc8] frames:2, duration:1.385000, fps:1.443336

[INFO] : SurfaceTextureClient: [0x544a3b48] frames:1, duration:2.233000, fps:0.447676

[INFO] : SurfaceTextureClient: [0x544a3b48] frames:3, duration:1.499000, fps:2.000562

[INFO] : SurfaceTextureClient: [0x544a3b48] frames:2, duration:1.000000, fps:1.999967

[INFO] : SurfaceTextureClient: [0x544a3b48] frames:3, duration:1.023000, fps:2.931937

[ERROR] : JNIUtil: !!! Unable to convert unknown Java object class 'com.couchbase.lite.Attachment' to Js value !!!

[INFO] : libc: Fatal signal 11 (SIGSEGV) at 0x00000000 (code=1), thread 26412 (KrollRuntimeThr)