--- old/src/java.desktop/share/classes/javax/swing/text/DefaultStyledDocument.java 2015-09-18 13:06:04.513448091 -0700 +++ new/src/java.desktop/share/classes/javax/swing/text/DefaultStyledDocument.java 2015-09-18 13:06:04.397448095 -0700 @@ -2650,7 +2650,7 @@ } /** Class-specific reference queues. */ - private final static Map, ReferenceQueue> queueMap + private static final Map, ReferenceQueue> queueMap = new HashMap, ReferenceQueue>(); /** A weak reference to the document object. */