Tapestry 5
  1. Tapestry 5
  2. TAP5-636

Using Element.forceAttribute() with a null value can cause a later NPE during rendering under some circumstances

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 5.1.0.3
    • Fix Version/s: 5.1.0.3
    • Component/s: tapestry-core
    • Labels:
      None

      Description

      An unexpected application exception has occurred.

      • java.lang.NullPointerException
      • org.apache.tapestry5.dom.AbstractMarkupModel.encodeQuoted(AbstractMarkupModel.java:94)
      • org.apache.tapestry5.dom.Attribute.render(Attribute.java:69)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:313)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:835)
      • org.apache.tapestry5.dom.Element.toMarkup(Element.java:351)
      • org.apache.tapestry5.dom.Document.toMarkup(Document.java:163)
      • org.apache.tapestry5.dom.Node.toMarkup(Node.java:80)
      • org.apache.tapestry5.internal.services.MarkupWriterImpl.toMarkup(MarkupWriterImpl.java:57)
      • org.apache.tapestry5.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:67)
      • $PageResponseRenderer_12085541484.renderPageResponse($PageResponseRenderer_12085541484.java)

      The real question is: how can the value ever be null? Adding an attribute that's null, or overriding an attribute to null, should remove it from the list.

        Activity

        Transition Time In Source Status Execution Times Last Executer Last Execution Date
        Open Open In Progress In Progress
        31s 1 Howard M. Lewis Ship 08/Apr/09 17:41
        In Progress In Progress Closed Closed
        1h 20m 1 Howard M. Lewis Ship 08/Apr/09 19:02
        Howard M. Lewis Ship made changes -
        Status In Progress [ 3 ] Closed [ 6 ]
        Fix Version/s 5.1.0.3 [ 12313782 ]
        Resolution Fixed [ 1 ]
        Howard M. Lewis Ship made changes -
        Summary NPE inside Attribute.write() if value is null Using Element.forceAttribute() with a null value can cause a later NPE during rendering under some circumstances
        Howard M. Lewis Ship made changes -
        Status Open [ 1 ] In Progress [ 3 ]
        Howard M. Lewis Ship made changes -
        Field Original Value New Value
        Assignee Howard M. Lewis Ship [ hlship ]
        Howard M. Lewis Ship created issue -

          People

          • Assignee:
            Howard M. Lewis Ship
            Reporter:
            Howard M. Lewis Ship
          • Votes:
            0 Vote for this issue
            Watchers:
            0 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development