jdk/src/closed/share/demo/jfc/Stylepad/resources/Stylepad.properties contains the following non-translatable resources. When translated, it causes NPE. They need to be moved out of the translatable resource file.
+# The following string should NOT be translated: menubar
+# The following string should NOT be translated: font
+# The following string should NOT be translated: family1Action
+# The following string should NOT be translated: family2Action
+# The following string should NOT be translated: family3Action
+# The following string should NOT be translated: family4Action
+# The following string should NOT be translated: size1Action
+# The following string should NOT be translated: size2Action
+# The following string should NOT be translated: size3Action
+# The following string should NOT be translated: size4Action
+# The following string should NOT be translated: size5Action
+# The following string should NOT be translated: boldAction
+# The following string should NOT be translated: italicAction
+# The following string should NOT be translated: underlineAction
+# The following string should NOT be translated: debug
+# The following string should NOT be translated: dumpAction
+# The following string should NOT be translated: toolbar
+# The following string should NOT be translated: leftAction
+# The following string should NOT be translated: centerAction
+# The following string should NOT be translated: rightAction