Index: src/test/api/java.injected/javax/swing/text/html/parser/ParserDelegatorTest.java =================================================================== --- src/test/api/java.injected/javax/swing/text/html/parser/ParserDelegatorTest.java (revision 561006) +++ src/test/api/java.injected/javax/swing/text/html/parser/ParserDelegatorTest.java (working copy) @@ -30,4 +30,11 @@ new JEditorPane("text/html", "
Hello world!" //$NON-NLS-1$//$NON-NLS-2$ + "
"); //$NON-NLS-1$ } + + /** + * Regression for HARMONY-4570 + */ + public void testHarmony4570() { + new JEditorPane("text/html", ""); //$NON-NLS-1$//$NON-NLS-2$ + } }