title: java.lang.IllegalAccessError: tried to access method com.google.common.collect.MapMaker.makeComputingMap(); from WeldMessageConveyor
body: <p>I get the following exception when I try deploying my webApp on weblogic12:</p>
  
  <pre><code>weblogic.application.ModuleException: java.lang.IllegalAccessError: tried to access method com.google.common.collect.MapMaker.makeComputingMap(Lcom/google/common/base/Function;)Ljava/util/concurrent/ConcurrentMap; from class org.jboss.weld.logging.WeldMessageConveyor
  at weblogic.application.internal.ExtensibleModuleWrapper.start(ExtensibleModuleWrapper.java:140)
  at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:124)
  at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:213)
  at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:208)
  at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:42)
  Truncated. see log file for complete stacktrace
  Caused By: java.lang.IllegalAccessError: tried to access method com.google.common.collect.MapMaker.makeComputingMap(Lcom/google/common/base/Function;)Ljava/util/concurrent/ConcurrentMap; from class org.jboss.weld.logging.WeldMessageConveyor
  at org.jboss.weld.logging.WeldMessageConveyor.&lt;init&gt;(WeldMessageConveyor.java:61)
  at org.jboss.weld.logging.WeldMessageConveyerFactory.getDefaultMessageConveyer(WeldMessageConveyerFactory.java:27)
  at org.jboss.weld.logging.LoggerFactory.&lt;init&gt;(LoggerFactory.java:37)
  at org.jboss.weld.logging.LoggerFactory.loggerFactory(LoggerFactory.java:51)
  at org.jboss.weld.bootstrap.WeldBootstrap.&lt;clinit&gt;(WeldBootstrap.java:126)
  Truncated. see log file for complete stacktrace
  </code></pre>
  
  <p>Any one has an idea why? My application uses Errai</p>