App crash when Account name left empty

[luelista]

05-20 00:30:28.486 32737 32737 D AndroidRuntime: Shutting down VM
05-20 00:30:28.487 32737 32737 E AndroidRuntime: FATAL EXCEPTION: main
05-20 00:30:28.487 32737 32737 E AndroidRuntime: Process: de.wikilab.android.ldapsync, PID: 32737
05-20 00:30:28.487 32737 32737 E AndroidRuntime: java.lang.IllegalStateException: Could not execute method for android:onClick
05-20 00:30:28.487 32737 32737 E AndroidRuntime:        at android.view.View$DeclaredOnClickListener.onClick(View.java:5689)
[...]
05-20 00:30:28.487 32737 32737 E AndroidRuntime: Caused by: java.lang.IllegalArgumentException: the name must not be empty: 
05-20 00:30:28.487 32737 32737 E AndroidRuntime:        at android.accounts.Account.<init>(Account.java:78)
05-20 00:30:28.487 32737 32737 E AndroidRuntime:        at android.accounts.Account.<init>(Account.java:63)
05-20 00:30:28.487 32737 32737 E AndroidRuntime:        at de.wikilab.android.ldapsync.authenticator.AccountSettingsActivity.createAccount(AccountSettingsActivity.java:123)
05-20 00:30:28.487 32737 32737 E AndroidRuntime:        ... 12 more

reported by Marian by email