Create a regression test for [JDK-4666101](https://bugs.openjdk.java.net/browse/JDK-4666101).
DESCRIPTION OF THE ACTUAL PROBLEM : In a JEditorPane, the down arrow has no effect after you add text on a line preceding a blank line. Testing: As the original issue was reported in JDK 1.4.0 and it was fixed in JDK 1.4.2, I have verified the working of this test in those Java versions and the results are as follows: Java 1.4.0 -> Test Failed. $ ./j2sdk1.4.0/bin/java JEditorBugWin Caret Updated : 3 Test Failed, Down Arrow Key Not Functional, expected caret position is 5, but actual is 4 Java 1.4.2 -> Test Passed. $ ./j2sdk1.4.2/bin/java JEditorBugWin Caret Updated : 5 Test Passed, Down Arrow Key Functional ------------- Commit messages: - 8282402: Create a regression test for JDK-4666101 Changes: https://git.openjdk.java.net/jdk/pull/7623/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7623&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8282402 Stats: 186 lines in 1 file changed: 186 ins; 0 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/7623.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/7623/head:pull/7623 PR: https://git.openjdk.java.net/jdk/pull/7623