6954231: SynthTextPaneUI.installUI() doesn't set component to opaque even if prop was not set by client progr
Reviewed-by: alexp
/* @test /nodynamiccopyright/
@bug 4037020 4785453
@summary Verify that ClassModifier "synchronized" is not allowed.
@author dps
@compile/fail/ref=SynchronizedClass.out -XDrawDiagnostics -XDstdout SynchronizedClass.java
*/
public synchronized class SynchronizedClass { } // ERROR