javax.faces.FacesException: javax.faces.el.EvaluationException: java.lang.NullPointerException

co.uk | 2 months ago
  1. 0

    Optimising View Data and Avoiding Errors

    co.uk | 2 months ago
    javax.faces.FacesException: javax.faces.el.EvaluationException: java.lang.NullPointerException
  2. 0

    re: managed bean property

    Oracle Community | 1 decade ago | 843842
    javax.faces.el.EvaluationException: java.lang.NullPointerException
  3. 0

    javax.faces.FacesException: Error performing conversion of value

    Stack Overflow | 3 years ago | Vikash Kumar
    javax.faces.el.EvaluationException: javax.faces.FacesException: javax.faces.FacesException: Error performing conversion of value 'org.sakaiproject.component.app.attendance.AttendanceManagerImpl@721c3e' of type 'class com.sun.proxy.$Proxy61' to type 'interface org.sakaiproject.api.app.attendance.AttendanceManager' for managed bean 'AttendanceTool'.
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  5. 0

    [SAK-24667] java.util.ConcurrentModificationException in Messages and Forums. - Sakai

    sakaiproject.org | 1 year ago
    javax.faces.el.EvaluationException: javax.faces.el.EvaluationException: Error getting property 'decoratedForum' from bean of type org.sakaiproject.tool.messageforums.PrivateMessagesTool: java.util.ConcurrentModificationException
  6. 0

    [SAK-12765] Visiting tool as anonymous (not-logged-in) causes error - Sakai

    sakaiproject.org | 1 year ago
    javax.faces.el.EvaluationException: javax.faces.el.EvaluationException: Error getting property 'forums' from bean of type org.sakaiproject.tool.messageforums.DiscussionForumTool: java.lang.IllegalArgumentException: Null Argument for userId in getReadStatusForMessagesWithId

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    Root Cause Analysis

    1. javax.faces.el.EvaluationException

      java.lang.NullPointerException

      at com.sun.faces.el.ValueBindingImpl.getValue()
    2. JSF
      ValueBindingImpl.getValue
      1. com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:184)
      2. com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:134)
      2 frames
    3. JavaEE 7
      UIComponentBase.processDecodes
      1. javax.faces.component.UIComponentBase.fillShadowedFlags(UIComponentBase.java:880)
      2. javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1166)
      3. javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1177)
      3 frames
    4. com.ibm.xsp
      UIDataIterator.invokeOnComponent
      1. com.ibm.xsp.component.UIDataIterator.processDecodes(UIDataIterator.java:783)
      2. com.ibm.xsp.extlib.component.data.AbstractDataView.processDecodes(AbstractDataView.java:528)
      3. com.ibm.xsp.component.UIViewRootEx$2.invokeContextCallback(UIViewRootEx.java:1429)
      4. com.ibm.xsp.component.UIDataIterator.invokeOnComponent(UIDataIterator.java:1096)
      4 frames