The Windows L&F uses the windows specific class XPStyle as part of the border in the JSpinner. This class cannot be serialized and causes an exception during serialization. The root cause is that BasicSpinnerUI forgot to reset the border in uninstallUI() by the LookAndFeel.uninstallBorder(). I have found one more place where the LookAndFeel.installBorder() is not followed by the LookAndFeel.uninstallBorder() in the AquaSpinnerUI.
------------- Commit messages: - Initial fix Changes: https://git.openjdk.java.net/jdk/pull/1234/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1234&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8256376 Stats: 112 lines in 3 files changed: 88 ins; 4 del; 20 mod Patch: https://git.openjdk.java.net/jdk/pull/1234.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/1234/head:pull/1234 PR: https://git.openjdk.java.net/jdk/pull/1234
