Create a regression test for the JTree usecase of [JDK-4618767](https://bugs.openjdk.java.net/browse/JDK-4618767) Context: Migrating tests from a closed tonga based test suite to open regression based one.
Issue identified in [JDK-4618767](https://bugs.openjdk.java.net/browse/JDK-4618767): Typing a letter while a JTree has focus now makes the selection jump to the first/next node/item whose text starts with that letter even though that letter is accompanied by modifier keys such as ALT or CTRL. Fix: Only enable JTree letter navigation when the user doesn't press any modifier keys such as ALT or CTRL. Testing: Java 1.4.0 -> Test Failed. $ ./j2sdk1.4.0/bin/java JTreeOld LookAndFeel: javax.swing.plaf.metal.MetalLookAndFeel OS = windows nt (unknown) java.lang.RuntimeException: Test Failed, expected colors, but got food at JTreeOld.doTest(JTreeOld.java:166) at JTreeOld.main(JTreeOld.java:32) Exception in thread "main" Java 1.4.1 -> Test Passed. $ ./j2sdk1.4.1/bin/java JTreeOld LookAndFeel: javax.swing.plaf.metal.MetalLookAndFeel OS = windows nt (unknown) Test passed javax.swing.plaf.metal.MetalLookAndFeel LookAndFeel: com.sun.java.swing.plaf.motif.MotifLookAndFeel OS = windows nt (unknown) Test passed com.sun.java.swing.plaf.motif.MotifLookAndFeel LookAndFeel: com.sun.java.swing.plaf.windows.WindowsLookAndFeel OS = windows nt (unknown) Test passed com.sun.java.swing.plaf.windows.WindowsLookAndFeel ------------- Commit messages: - 8282789: Create a regression test for the JTree usecase of JDK-4618767 Changes: https://git.openjdk.java.net/jdk/pull/7742/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7742&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8282789 Stats: 226 lines in 1 file changed: 226 ins; 0 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/7742.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/7742/head:pull/7742 PR: https://git.openjdk.java.net/jdk/pull/7742
