The following testcases fail on Rhel5 on Jdk7 b60 pit build: Also fail on Jdk7 b59 build

java/awt/FullScreen/AltTabCrashTest/AltTabCrashTest.java
java/awt/FullScreen/DisplayChangeVITest/DisplayChangeVITest.java
java/awt/FullScreen/DisplayMode/DisplayModeNoRefreshTest/DisplayModeNoRefreshTest.java
java/awt/FullScreen/DisplayMode/CycleDMImage.java:

They fail with the following error: (Also the .jtr files are attached)

"java.lang.InternalError: Could not set display mode
at sun.awt.X11GraphicsDevice.configDisplayMode(Native Method)
at sun.awt.X11GraphicsDevice.setDisplayMode(X11GraphicsDevice.java:417)
at DisplayModeNoRefreshTest.<init>(DisplayModeNoRefreshTest.java:35)
at DisplayModeNoRefreshTest.main(DisplayModeNoRefreshTest.java:77)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:623)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:717)

JavaTest Message: Test threw exception: java.lang.InternalError: Could not set display mode
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.InternalError: Could not set display mode
result: Failed. Execution failed: `main' threw exception: java.lang.InternalError: Could not set display mode"
Also failed on 6u18_b03 pit build