#11 NullPointerException in org.jmeld.ui.BufferDiffPanel

[Jason Mathews]

> running java -Xmx256m -jar JMeld-2.1.jar file1 file2 on Windows with JRE 1.6.0_25-b06.

create document took 32
diff took 297 msec. [filter=47 msec][class org.jmeld.diff.EclipseDiff]
diff took 31 msec. [filter=0 msec][class org.jmeld.diff.EclipseDiff]
diff took 62 msec. [filter=0 msec][class org.jmeld.diff.EclipseDiff]
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at org.jmeld.ui.BufferDiffPanel.doNextSearch(BufferDiffPanel.java:429)
at org.jmeld.ui.JMeldPanel.doNextSearch(JMeldPanel.java:646)
at org.jmeld.ui.search.SearchBarDialog$3.keyReleased(SearchBarDialog.java:227)
at java.awt.Component.processKeyEvent(Unknown Source)
at javax.swing.JComponent.processKeyEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)

at org.jmeld.JMeld$1.dispatchKeyEvent(JMeld.java:85)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(UnknownSource)
at java.security.AccessControlContext$1.doIntersectionPrivilege(UnknownSource)
at java.awt.EventQueue$2.run(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(UnknownSource)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

[Jason Mathews]

Got same stacktrace w/different line numbers:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at org.jmeld.ui.BufferDiffPanel.doNextSearch(BufferDiffPanel.java:444)
at org.jmeld.ui.JMeldPanel.doNextSearch(JMeldPanel.java:644)

The fix for this is as follows:

Index: src/org/jmeld/ui/BufferDiffPanel.java
===================================================================
--- src/org/jmeld/ui/BufferDiffPanel.java       (revision 548)
+++ src/org/jmeld/ui/BufferDiffPanel.java       (working copy)
@@ -441,6 +441,7 @@
     }

     searchHits = fp.getSearchHits();
+    if (searchHits != null) {
     searchHits.next();
     fp.reDisplay();

@@ -447,6 +448,7 @@
     scrollToSearch(fp, searchHits);
+   }
   }
   @Override
   public void doPreviousSearch()
   {

[Kees Kuip]

Fixed in https://github.com/MrKuip/JMeld/commit/f81f64fb611c2a7421da1fca487d97eac449670d