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  1. JDK
  2. JDK-8093834

Frequent canvas updates lead to NullPointerExceptions

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Cannot Reproduce
    • Affects Version/s: 7u6
    • Fix Version/s: None
    • Component/s: javafx
    • Labels:
      None
    • Environment:

      java.runtime.version=1.7.0_06-ea-b17
      javafx.runtime.version=2.2.0-beta-b16
      nvidia gtx460
      win7

      Description

      If I run an animation which updates a canvas each pulse via setting pixels from a buffer using a PixelWriter. After a few seconds I start to get exceptions and the animation pauses for a while before continuing. Exceptions relate to texture drawing and caching.

      I only get exceptions when java is launched with the -server flag, but not with a -client flag. This leads me to believe that this issue is related to garbage collection in some way.

      A sample test application to demonstrate the issue is attached.
      On my machine (when launched with a java -server flag), the app runs fine for six seconds, then starts printing exceptions.
      Sample exceptions generated by the app are attached.

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              • Assignee:
                ckyang Chien Yang (Inactive)
                Reporter:
                josmithjfx John Smith (Inactive)
              • Votes:
                1 Vote for this issue
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                4 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:
                  Imported: