SQLite unique constraint violation

[atsakiridis]

Scenario:

• Message arrives from unknown contact
• Olympus tries to add this contact and it crashes because an entry with the same contact.name exists in the contact db.

android.database.sqlite.SQLiteConstraintException: UNIQUE constraint failed: contact.name (code 2067)
	at android.database.sqlite.SQLiteConnection.nativeExecuteForLastInsertedRowId(Native Method)
	at android.database.sqlite.SQLiteConnection.executeForLastInsertedRowId(SQLiteConnection.java:780)
	at android.database.sqlite.SQLiteSession.executeForLastInsertedRowId(SQLiteSession.java:788)
	at android.database.sqlite.SQLiteStatement.executeInsert(SQLiteStatement.java:86)
	at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1471)
	at android.database.sqlite.SQLiteDatabase.insertOrThrow(SQLiteDatabase.java:1367)
	at org.restcomm.android.olympus.DatabaseManager.addContactIfNeded(DatabaseManager.java:152)
	at org.restcomm.android.olympus.MessageActivity.handleMessage(MessageActivity.java:243)
	at org.restcomm.android.olympus.MessageActivity.onServiceConnected(MessageActivity.java:196)
	at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1225)
	at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1242)
	at android.os.Handler.handleCallback(Handler.java:739)
	at android.os.Handler.dispatchMessage(Handler.java:95)
	at android.os.Looper.loop(Looper.java:148)
	at android.app.ActivityThread.main(ActivityThread.java:5442)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:738)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:628)

TF session is here