java.lang.ClassCastException: sun.tools.tree.IdentifierExpression
        at sun.tools.tree.SwitchStatement.check(SwitchStatement.java:66)
        at sun.tools.tree.CompoundStatement.check(CompoundStatement.java:48)
        at sun.tools.tree.Statement.checkMethod(Statement.java:64)
        at sun.tools.javac.SourceField.check(SourceField.java:181)
        at sun.tools.javac.SourceClass.check(SourceClass.java:402)
        at sun.tools.javac.SourceClass.compileClass(SourceClass.java:520)
        at sun.tools.javac.SourceClass.compile(SourceClass.java:507)
        at sun.tools.javac.Main.compile(Main.java:193)
        at sun.tools.javac.Main.main(Main.java:289)
../../../../src/share/sun/sun/hotjava/doc/DocumentWindow.java:360: Undefined variable: DOC_TITLE
          case DOC_TYPE:

The description field as copied from bug report 1228942 follows:

java.lang.ClassCastException: sun.tools.tree.IdentifierExpression
        at sun.tools.tree.SwitchStatement.check(SwitchStatement.java:66)
        at sun.tools.tree.CompoundStatement.check(CompoundStatement.java:48)
        at sun.tools.tree.Statement.checkMethod(Statement.java:64)
        at sun.tools.javac.SourceField.check(SourceField.java:181)
        at sun.tools.javac.SourceClass.check(SourceClass.java:402)
        at sun.tools.javac.SourceClass.compileClass(SourceClass.java:520)
        at sun.tools.javac.SourceClass.compile(SourceClass.java:507)
        at sun.tools.javac.Main.compile(Main.java:193)
        at sun.tools.javac.Main.main(Main.java:289)
../../../../src/share/sun/sun/hotjava/doc/DocumentPanel.java:30: Undefined variable: MOUSE_DOWN
        case MOUSE_DOWN:
             ^