title: java.lang.IllegalArgumentException in a webview
body: <p>I have an app that uses android webview and of recent I have been getting java.lang.IllegalArgumentException. The problem with the stacktrace is that it does not point to any of my java class, so it kind of hard to fix this bug. The stacktrace is below:</p>
  
  <pre><code>    java.lang.IllegalArgumentException: 
  
  at com.android.webview.chromium.WebViewContentsClientAdapter$1.handleMessage (WebViewContentsClientAdapter.java:153)
  
  at android.os.Handler.dispatchMessage (Handler.java:102)
  
  at android.os.Looper.loop (Looper.java:154)
  
  at android.app.ActivityThread.main (ActivityThread.java:6776)
  
  at java.lang.reflect.Method.invoke (Native Method)
  
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:1496)
  
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1386)
  
  I have searched google but dont seem to find an answer.
  </code></pre>