The source in the attachment CheckLayoutLTR.java fails to compile with
recent 1.5 beta compilers because it is interpreting the import

import java.awt.geom.*
to automatically also act like this
import java.awt.geom.Rectangle2D.*

It is (applying to static inner classes-- which it didn't do before,
introducing an ambiguity.

% /import/java/jdk1.5/solaris-sparc/bin/java -version
java version "1.5.0-beta2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta2-b36)
Java HotSpot(TM) Server VM (build 1.5.0-beta2-b36, mixed mode)
rincewind- 255% /import/java/jdk1.5/solaris-sparc/bin/javac CheckLayoutLTR.java
CheckLayoutLTR.java:20: reference to Float is ambiguous, both class java.lang.Float in java.lang and class java.awt.geom.Rectangle2D.Float in java.awt.geom.Rectangle2D match
        rtl.put(TextAttribute.SIZE, new Float(20));
                                        ^
CheckLayoutLTR.java:24: reference to Float is ambiguous, both class java.lang.Float in java.lang and class java.awt.geom.Rectangle2D.Float in java.awt.geom.Rectangle2D match
        ltr.put(TextAttribute.SIZE, new Float(20));
                                        ^
CheckLayoutLTR.java:27: reference to Float is ambiguous, both class java.lang.Float in java.lang and class java.awt.geom.Rectangle2D.Float in java.awt.geom.Rectangle2D match
        none.put(TextAttribute.SIZE, new Float(20));