Three tests:

api/javax_swing/interactive/JRadioButtonTests.html#JRadioButton[JRadioButtonTest0001]
api/javax_swing/interactive/JRadioButtonTests.html#JRadioButton[JRadioButtonTest0002]
api/javax_swing/interactive/JRadioButtonTests.html#JRadioButton[JRadioButtonTest0004]

api/javax_swing/interactive/JCheckBoxTests.html#JCheckBox[JCheckBoxTest0004]

fail with Nimbus LaF because two radio buttons become invisible.

screenshots attached

steps to reproduce:

update with correct paths and run script

set CLASSPATH=C:\\JCK\\JCK-runtime-6b\\classes;C:\\jcktest\\JCK-runtime-6b\\lib\\javatest
C:\\JDK\\jdk1.6.0_10\\bin\\java.exe -Djava.security.policy=C:\\jcktest\\JCK-runtime-6b\\lib\\jck.policy javasoft.sqe.tests.api.javax.swing.interactive.JRadioButton.JRadioButtonTests -TestCaseID ALL -TestDirURL file:/C:/jcktest/JCK-runtime-6b/tests/api/javax_swing/interactive/JRadioButtonTests.html#JRadioButton