title: java.lang.NullPointerException at android.webkit.WebViewClassic.setBaseLayer(WebViewClassic.java:5377)
body: <p>I published an Android application that uses ACRA for crash reporting. Now I got a strange crash report:</p>
  
  <pre><code>java.lang.NullPointerException
  at android.webkit.WebViewClassic.setBaseLayer(WebViewClassic.java:5377)
  at android.webkit.WebViewClassic.setNewPicture(WebViewClassic.java:10781)
  at android.webkit.WebViewClassic$PrivateHandler.handleMessage(WebViewClassic.java:10012)
  at android.os.Handler.dispatchMessage(Handler.java:99)
  at android.os.Looper.loop(Looper.java:137)
  at android.app.ActivityThread.main(ActivityThread.java:4898)
  at java.lang.reflect.Method.invokeNative(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:511)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
  at dalvik.system.NativeStart.main(Native Method)
  </code></pre>
  
  <p>The report was sent from a Samsung Galaxy S3 (GT-I9300) running Android 4.1.1. The report is strange (from my point of view) because my app doesn't use a WebView (no display of web pages in the whole app, no HTML handling at all). Furthermore the stack trace doesn't include any of my packages. Certainly I cannot reproduce the crash.</p>
  
  <p>Has anybody else encountered this (or a very similar) stack trace? Why is this exception thrown? And what can I do to avoid the exception? Any help is really appreciated.</p>