Bug ID: JDK-6799099 All automatic regression tests that create Robot fail on X11

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JDK 7
7 b60Fixed

Any application that creates the java.awt.Robot instance fails with the current JDK 7 build with the fowllowing exception:

java.lang.IllegalArgumentException: button doesn't exist 12
	at java.awt.event.InputEvent.getMaskForButton(InputEvent.java:233)
	at java.awt.Robot.<init>(Robot.java:101)

Almost half of AWT automatic regression tests use the Robot (throught the test.java.awt.regtesthelpers.Util.createRobot() method), and therefore fail, making it impossible to run the automatic tests.

For instance, this is what the test/java/awt/Frame/DynamicLayout/DynamicLayout.java ends up with:

----------System.err:(17/972)----------
java.lang.IllegalArgumentException: button doesn't exist 12
	at java.awt.event.InputEvent.getMaskForButton(InputEvent.java:233)
	at java.awt.Robot.<init>(Robot.java:101)
	at test.java.awt.regtesthelpers.Util.createRobot(Util.java:85)
	at DynamicLayout.init(DynamicLayout.java:90)
	at DynamicLayout.main(DynamicLayout.java:165)
	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:713)

Platforms tested:

Ubuntu 8.10 i586/KDE 
Mandriva Linux 2009/Gnome 2.24

SUGGESTED FIX http://sa.sfbay.sun.com/projects/awt_data/7/6799099.5

22-05-2009

EVALUATION The exception happens on an attempt to get some index from the array of mouse buttons masks. That call comes from the Robot class which tries to get masks for every button. InputEvent has the private int array (BUTTON_DOWN_MASK) containing these masks. Since it's an int array it may only contain up to 32 values (they are 1<<i numbers). Actually up to 31, since the last one is reserved. Moreover, there are about ten reserved values for SHIFT, META and others so we don't fit into 32 bit space with 24 buttons supported by standard X systems. One of the possible ways is to use masks for BUTTON1|2|3 but introduce a method to get mouse button states for extra buttons.

29-01-2009

Duplicate :	JDK-6808591 - "java.lang.IllegalArgumentException: button doesn't exist 12" from Robot
Duplicate :	JDK-6834346 - java.awt.Robot could not be instantiated with DISPLAY set to Linux machine
Relates :	JDK-6844270 - Mouse hot-plugging should work consistent for SunToolkit and MouseInfo classes
Relates :	JDK-6750288 - Regression after 6315717. ArrayIndexOutOfBoundsException.
Relates :	JDK-6833404 - java.awt.event.MouseEvent constructor should mention throwing HE in headless mode
Relates :	JDK-8157147 - Ubuntu Linux: invalid KeyEvent's extended modifiers info
Relates :	JDK-6844750 - Solaris build failed after 6799099
Relates :	JDK-6315717 - Support For Mouse With Multiple Scroll Wheels and 4 or More Buttons
Relates :	JDK-6860088 - many tests failed related to AWT-EventQueue or X11 since jdk7 b60