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This bug was originally marked as duplicate of bug 167225, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 7.4 (Build 201311011758) VM: Java HotSpot(TM) 64-Bit Server VM, 24.51-b03, Java(TM) SE Runtime Environment, 1.7.0_51-b13 OS: Windows 7 User Comments: miguelr22: using Swingx Stacktrace: java.lang.IllegalArgumentException: java.lang.ClassCastException@6ef910fe at sun.reflect.GeneratedMethodAccessor122.invoke(GeneratedMethodAccessor122.java:0) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.netbeans.modules.form.RADProperty.getTargetValue(RADProperty.java:122) at org.netbeans.modules.form.FormProperty.checkCurrentValue(FormProperty.java:1006) at org.netbeans.modules.form.FormProperty.getValue(FormProperty.java:271)
Created attachment 146386 [details] stacktrace
See also bug 253940.