User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/530.5 (KHTML, like Gecko) Chrome/18.104.22.168 Safari/530.5 Build Identifier: 1_7R2 Problem arise when I switched lookAndFeel from default to Nimbus (included in jre1.6 update 10+) сaused in ClassCastException deeply in lookAndFeel rendering code. But other lookAndFeels may be also affected. In constructor of ContextWindow, there is very questionable operation label.setBorder(context.getBorder()); method getBorder() may return ComponentUI specific border (that implements UIResource marker interface) In this case SynthComboBoxUI's Border was assigned to JLabel, resulted in invalid casting of JLabel to JComboBox while rendering border Reproducible: Always Steps to Reproduce: Change default lookAndFeel (Ocean/Steel/System) to com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel on jre1.6 u10+ Actual Results: Debugger window rendered partly and flaky, with trace of ClassCastException in rendering code Expected Results: Debugger window with nice LookAndFeel rendered correctly simple removal of this line in ContextWindow did the job //label.setBorder(context.getBorder()); 1. All was running perfectly under Nimbus lookAndFeel 2. Did not notice any graphical difference with default lookAndFeel
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