JDK-6661484 : FullScreen tests failing with NullPointer Exception in 6u10b12 PIT
  • Type: Bug
  • Component: client-libs
  • Sub-Component: java.awt
  • Affected Version: 6u10
  • Priority: P2
  • Status: Closed
  • Resolution: Fixed
  • OS: windows_xp
  • CPU: x86
  • Submitted: 2008-02-11
  • Updated: 2011-01-19
  • Resolved: 2008-02-14
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JDK 6 JDK 7
6u10 b12Fixed 7Resolved
Related Reports
Relates :  
JDK-6633275 - Need to support shaped/translucent windows
Description
Following Regression Testcases are failing with "NullPointerException" in Windows Xp with the
6u10b12 pit build.
They pass in mustang as well as 6u10b11 promoted build.
The failure stack trace is attached.

java/awt/FullScreen/BufferStrategyExceptionTest/BufferStrategyExceptionTest.java
java/awt/FullScreen/DisplayMode/DeadlockTest.java
java/awt/FullScreen/NonExistentDisplayModeTest/NonExistentDisplayModeTest.java
java/awt/FullScreen/SetFSWindow/FSFrame.java
java/awt/FullScreen/VramExaustionFSTest/VramExaustionFSTest.java
java/awt/FullScreen/UninitializedDisplayModeChangeTest/UninitializedDisplayModeChangeTest.java
Comments
EVALUATION This is a regression of 6633275. This happens due to the code added into the setFullScreen() method in order to disable all the effects for windows going into the full-screen mode. However, the setFullScreen() method is allowed to get 'null' as a valid argument. Therefore, we should guard our code verifying that the passed Window argument is not null.
11-02-2008
SUGGESTED FIX --- old/src/share/classes/java/awt/GraphicsDevice.java 2008-02-11 15:46:54.000000000 +0300 +++ new/src/share/classes/java/awt/GraphicsDevice.java 2008-02-11 15:46:54.000000000 +0300 @@ -219,15 +219,17 @@ * @since 1.4 */ public void setFullScreenWindow(Window w) { - //XXX: The actions should be documented in some non-update release. - if (AWTAccessor.getWindowAccessor().getShape(w) != null) { - AWTAccessor.getWindowAccessor().setShape(w, null); - } - if (!AWTAccessor.getWindowAccessor().isOpaque(w)) { - AWTAccessor.getWindowAccessor().setOpaque(w, true); - } - if (AWTAccessor.getWindowAccessor().getOpacity(w) < 1.0f) { - AWTAccessor.getWindowAccessor().setOpacity(w, 1.0f); + if (w != null) { + //XXX: The actions should be documented in some non-update release. + if (AWTAccessor.getWindowAccessor().getShape(w) != null) { + AWTAccessor.getWindowAccessor().setShape(w, null); + } + if (!AWTAccessor.getWindowAccessor().isOpaque(w)) { + AWTAccessor.getWindowAccessor().setOpaque(w, true); + } + if (AWTAccessor.getWindowAccessor().getOpacity(w) < 1.0f) { + AWTAccessor.getWindowAccessor().setOpacity(w, 1.0f); + } } if (fullScreenWindow != null && windowedModeBounds != null) {
11-02-2008