search yields NullPointerException and unstable search hit hiliting

Doing a search in JavaHelp yields exceptions and the search hit hiliting is
inconsistent.

Sometimes the exception is this:
java.lang.NullPointerException
        at javax.swing.text.FlowView$FlowStrategy.layoutRow(FlowView.java:482)
        at javax.swing.text.FlowView$FlowStrategy.layout(FlowView.java:399)
        at javax.swing.text.FlowView.layout(FlowView.java:185)
        at javax.swing.text.BoxView.setSize(BoxView.java:382)
        at javax.swing.text.BoxView.updateChildSizes(BoxView.java:351)
        at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:333)
        at javax.swing.text.BoxView.layout(BoxView.java:685)
        at javax.swing.text.BoxView.setSize(BoxView.java:382)
        at javax.swing.text.BoxView.updateChildSizes(BoxView.java:351)
        at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:333)
        at javax.swing.text.BoxView.layout(BoxView.java:685)
        at javax.swing.text.BoxView.setSize(BoxView.java:382)
        at javax.swing.plaf.basic.BasicTextUI$RootView.setSize(BasicTextUI.java:
1536)
        at javax.swing.plaf.basic.BasicTextUI.damageRange(BasicTextUI.java:1001)
        at javax.swing.plaf.basic.BasicTextUI.damageRange(BasicTextUI.java:982)
        at javax.swing.text.DefaultHighlighter.addHighlight(DefaultHighlighter.j
ava:110)
        at javax.help.plaf.basic.BasicContentViewerUI.highlightsChanged(BasicCon
tentViewerUI.java:450)
        at javax.help.plaf.basic.BasicContentViewerUI.propertyChange(BasicConten
tViewerUI.java:286)
        at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(Swing
PropertyChangeSupport.java:267)
        at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(Swing
PropertyChangeSupport.java:235)
        at javax.swing.JComponent.firePropertyChange(JComponent.java:3815)
        at javax.swing.JEditorPane$PageLoader.run(JEditorPane.java:576)

Other times it's this:
java.lang.ArrayIndexOutOfBoundsException
        at java.lang.System.arraycopy(Native Method)
        at javax.swing.text.BoxView.updateLayoutArray(BoxView.java:200)
        at javax.swing.text.BoxView.replace(BoxView.java:171)
        at javax.swing.text.View.append(View.java:427)
        at javax.swing.text.FlowView$FlowStrategy.layout(FlowView.java:395)
        at javax.swing.text.FlowView.layout(FlowView.java:185)
        at javax.swing.text.BoxView.setSize(BoxView.java:382)
        at javax.swing.text.BoxView.updateChildSizes(BoxView.java:351)
        at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:333)
        at javax.swing.text.BoxView.layout(BoxView.java:685)
        at javax.swing.text.BoxView.setSize(BoxView.java:382)
        at javax.swing.text.BoxView.updateChildSizes(BoxView.java:351)
        at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:333)
        at javax.swing.text.BoxView.layout(BoxView.java:685)
        at javax.swing.text.BoxView.setSize(BoxView.java:382)
        at javax.swing.text.BoxView.updateChildSizes(BoxView.java:351)
        at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:333)
        at javax.swing.text.BoxView.layout(BoxView.java:685)
        at javax.swing.text.BoxView.setSize(BoxView.java:382)
        at javax.swing.text.BoxView.updateChildSizes(BoxView.java:351)
        at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:333)
        at javax.swing.text.BoxView.layout(BoxView.java:685)
        at javax.swing.text.BoxView.setSize(BoxView.java:382)
        at javax.swing.text.BoxView.updateChildSizes(BoxView.java:351)
        at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:333)
        at javax.swing.text.BoxView.layout(BoxView.java:685)
        at javax.swing.text.BoxView.setSize(BoxView.java:382)
        at javax.swing.text.BoxView.updateChildSizes(BoxView.java:351)
        at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:333)
        at javax.swing.text.BoxView.layout(BoxView.java:685)
        at javax.swing.text.BoxView.setSize(BoxView.java:382)
        at javax.swing.plaf.basic.BasicTextUI$RootView.setSize(BasicTextUI.java:1536)
        at javax.swing.plaf.basic.BasicTextUI.damageRange(BasicTextUI.java:1001)
        at javax.swing.plaf.basic.BasicTextUI.damageRange(BasicTextUI.java:982)
        at javax.swing.text.DefaultHighlighter.addHighlight(DefaultHighlighter.java:110)
        at javax.help.plaf.basic.BasicContentViewerUI.highlightsChanged(BasicContentViewerUI.java:450)
        at javax.help.plaf.basic.BasicContentViewerUI.propertyChange(BasicContentViewerUI.java:286)
        at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(SwingPropertyChangeSupport.java:267)
        at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(SwingPropertyChangeSupport.java:235)
        at javax.swing.JComponent.firePropertyChange(JComponent.java:3815)
        at javax.swing.JEditorPane$PageLoader.run(JEditorPane.java:576)


At times if you do enough searches, the help viewer will no longer render anything, but
will simply result in exception dumps to stdout. I don't have a reproducable test case
for this, but I have seen it several times.

Additionally, the search hiliting is inconsistent. Do a search, and a page will come up but
not all search hits are hilited. Repeat the search by simply clicking in the search entry
text field and hitting the Return key and all hits are hilited. Now, click the down arrow
on the scroll bar and you will see many of those hilites will disappear.

All this behavior can be seen when running the Solaris Management Console on build 47 or greater.
To reproduce:
   - run /usr/sadm/bin/smc
   - click on the Devices and Hardware folder
   - click on Serial Ports, and login
   - invoke Help->Content to bring up the viewer
   - search for "modem"

You can load more helpsets by clicking on any tool in any other folder, say "Processes"
under the "System Status" folder. Do a search for "Processes" and you'll see the same
hiliting inconsistency. In general, all the behavior described here can be seen by
simply exercising the search capability with any of the tools loaded.

If you need access to any specific helpset, the files are included in the jar file for that
tool under /usr/sadm/lib. For example, the Serial Port jar is located at
/usr/sadm/lib/serialmgr/VSerialMgr.jar While the jar contains everything used by the tool,
the helpset files can be extracted from the "helpset" paths in the jar.

=============================================================================

Verified on Solaris 9 with the following config details on command uname -a
SunOS vagator 5.9 s81_53 sun4u sparc SUNW,Ultra-5_10

###@###.### 2002-01-15
==============================================================================