Create a regression test for [JDK-4515999](https://bugs.openjdk.java.net/browse/JDK-4515999) Create a test which checks whether incrementing dates via the keyboard (up/down) gives the same results as when using mouse press on the arrow buttons in a JSpinner.
------------- Commit messages: - 8281296: Create a regression test for JDK-4515999 Changes: https://git.openjdk.java.net/jdk/pull/7363/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7363&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8281296 Stats: 169 lines in 1 file changed: 169 ins; 0 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/7363.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/7363/head:pull/7363 PR: https://git.openjdk.java.net/jdk/pull/7363
