Peter Orolin created FOP-2237:
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Summary: Zoom in "preview screen" should cause NullPointerException
Key: FOP-2237
URL: https://issues.apache.org/jira/browse/FOP-2237
Project: Fop
Issue Type: Bug
Components: awt renderer
Affects Versions: trunk
Environment: Operating System: Windows
Platform: PC
Reporter: Peter Orolin
[PATCH]Zoom in "preview screen" should cause NullPointerException, because of
incorrect use of synchronized in class
org.apache.fop.render.awt.viewer.PreviewPanel.
Method PreviewPanel.reload() is synchronized, but it creates new Thread, which
is not under synchronized control. Sometimes, when it is later run method
PreviewPanel.showPage(), it finishes with NullPointerException (array
pagePanels is initialized, but objects in the array not -- see
ShowPageImage.run statement pagePanels[pg - firstPage].setPage(pg);)
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