title: Using Hazelcast on Android gives random errors
body: <p>I'm trying to use Hazelcast on Android. I can include the dependency and the predefined "Hello World" will show up nicely without error. As soon as I put this code into my Activity (i.e. starting to use Hazelcast) it gives me an error:</p>
  
  <p>Code:</p>
  
  <pre><code>protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
  
          Config cfg = new Config();
          HazelcastInstance instance = Hazelcast.newHazelcastInstance(cfg);
      }
  </code></pre>
  
  <p>Stacktrace</p>
  
  <pre><code>I/art: Rejecting re-init on previously-failed class java.lang.Class&lt;android.support.v4.view.ViewCompat$OnUnhandledKeyEventListenerWrapper&gt;: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener;
             at void android.support.v4.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2340)
             at void android.support.v7.widget.ActionBarContainer.&lt;init&gt;(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:62)
             at java.lang.Object java.lang.reflect.Constructor.newInstance0!(java.lang.Object[]) (Constructor.java:-2)
             at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:430)
             at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:652)
             at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:794)
             at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:734)
             at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:865)
             at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:828)
             at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) (LayoutInflater.java:525)
             at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:427)
  I/art:     at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:378)
             at android.view.ViewGroup android.support.v7.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:605)
             at void android.support.v7.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:516)
             at void android.support.v7.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:464)
             at void android.support.v7.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140)
             at void nl.quintor.justanotherboardgame.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:15)
             at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6955)
             at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1126)
             at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2927)
             at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:3045)
             at void android.app.ActivityThread.-wrap14(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1)
             at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1642)
             at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102)
             at void android.os.Looper.loop() (Looper.java:154)
             at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6776)
             at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2)
             at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:1496)
             at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:1386)
         Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList[[zip file "/data/app/nl.quintor.justanotherboardgame-2/base.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_dependencies_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_0_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_1_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_2_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_3_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_4_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_5_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_6_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_7_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_8_apk.apk", 
             at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:56)
             at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String, boolean) (ClassLoader.java:380)
             at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String) (ClassLoader.java:312)
             at void android.support.v4.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2340)
             at void android.support.v7.widget.ActionBarContainer.&lt;init&gt;(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:62)
             at java.lang.Object java.lang.reflect.Constructor.newInstance0!(java.lang.Object[]) (Constructor.java:-2)
             at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:430)
             at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:652)
             at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:794)
             at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:734)
             at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:865)
             at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:828)
             at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) (LayoutInflater.java:525)
             at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:427)
             at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:378)
             at android.view.ViewGroup android.support.v7.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:605)
             at void android.support.v7.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:516)
             at void android.support.v7.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:464)
             at void android.support.v7.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140)
             at void nl.quintor.justanotherboardgame.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:15)
             at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6955)
             at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1126)
             at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2927)
             at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:3045)
             at void android.app.ActivityThread.-wrap14(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1)
             at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1642)
             at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102)
             at void android.os.Looper.loop() (Looper.java:154)
             at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6776)
             at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2)
             at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:1496)
             at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:1386)
  </code></pre>
  
  <p>It can't seem to find some classes which are always working and are part of the Android Library. When I try to find the code I can find it. When I remove the instance creation of Hazelcast there is no problem either..</p>
  
  <p>Anybody has an idea what this problem might be?</p>
  
  <p>Thanks in advance!</p>