Bugs item #576179, was opened at 2002-07-01 18:30
You can respond by visiting:
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Category: Interactions
Group: Makes DrJ unstable
Status: Open
Resolution: None
Priority: 5
Submitted By: Christopher Haynes (chaynes)
Assigned to: Nobody/Anonymous (nobody)
Summary: stack trace error
Initial Comment:
Entering the interaction
TestApplet.test(new MagnetGame(), 400, 400)
and playing with the applet resulted in a null pointer
exception (obvious errors by beginners). The exception
shows up in the console window, but not the
interactions window, which is quite unfortunate for the
student. And when I click in the interactions window
after clicking in the applet, I get the following using the
6/17 version of drjava (in Windows XP). This is still an
improvement on the earlier version of drjava the students
are using, which hung in a similar situation. Does the
reset interactions command kill all threads from privious
interactions? It should.
Stack Trace:
java.lang.ArrayIndexOutOfBoundsException
at javax.swing.text.CompositeView.getView
(CompositeView.java:143)
at
javax.swing.text.FlowView$FlowStrategy.createView
(FlowView.java:567)
at
javax.swing.text.FlowView$FlowStrategy.layoutRow
(FlowView.java:441)
at
javax.swing.text.FlowView$FlowStrategy.layout
(FlowView.java:397)
at javax.swing.text.FlowView.layout
(FlowView.java:182)
at javax.swing.text.BoxView.setSize
(BoxView.java:379)
at javax.swing.text.BoxView.viewToModel
(BoxView.java:475)
at
javax.swing.text.CompositeView.viewToModel
(CompositeView.java:408)
at javax.swing.text.BoxView.viewToModel
(BoxView.java:477)
at
javax.swing.plaf.basic.BasicTextUI$RootView.viewToMod
el(BasicTextUI.java:1366)
at
javax.swing.plaf.basic.BasicTextUI.viewToModel
(BasicTextUI.java:919)
at javax.swing.text.DefaultCaret.positionCaret
(DefaultCaret.java:219)
at javax.swing.text.DefaultCaret.adjustCaret
(DefaultCaret.java:367)
at
javax.swing.text.DefaultCaret.adjustCaretAndFocus
(DefaultCaret.java:355)
at
javax.swing.text.DefaultCaret.mouseClicked
(DefaultCaret.java:294)
at
java.awt.AWTEventMulticaster.mouseClicked
(AWTEventMulticaster.java:208)
at
java.awt.AWTEventMulticaster.mouseClicked
(AWTEventMulticaster.java:207)
at java.awt.Component.processMouseEvent
(Component.java:5024)
at java.awt.Component.processEvent
(Component.java:4818)
at java.awt.Container.processEvent
(Container.java:1380)
at java.awt.Component.dispatchEventImpl
(Component.java:3526)
at java.awt.Container.dispatchEventImpl
(Container.java:1437)
at java.awt.Component.dispatchEvent
(Component.java:3367)
at
java.awt.LightweightDispatcher.retargetMouseEvent
(Container.java:3214)
at
java.awt.LightweightDispatcher.processMouseEvent
(Container.java:2938)
at
java.awt.LightweightDispatcher.dispatchEvent
(Container.java:2859)
at java.awt.Container.dispatchEventImpl
(Container.java:1423)
at java.awt.Window.dispatchEventImpl
(Window.java:1566)
at java.awt.Component.dispatchEvent
(Component.java:3367)
at java.awt.EventQueue.dispatchEvent
(EventQueue.java:445)
at
java.awt.EventDispatchThread.pumpOneEventForHierarc
hy(EventDispatchThread.java:190)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy
(EventDispatchThread.java:144)
at java.awt.EventDispatchThread.pumpEvents
(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.pumpEvents
(EventDispatchThread.java:130)
at java.awt.EventDispatchThread.run
(EventDispatchThread.java:98)
----------------------------------------------------------------------
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