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This bug was originally marked as duplicate of bug 146670, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 8.1 (Build 201510222201) VM: Java HotSpot(TM) 64-Bit Server VM, 25.65-b01, Java(TM) SE Runtime Environment, 1.8.0_65-b17 OS: Linux User Comments: GUEST: ns Stacktrace: java.lang.IllegalArgumentException: java.lang.Number&java.lang.Comparable<?> at com.sun.tools.javac.model.JavacTypes.getWildcardType(JavacTypes.java:213) at org.netbeans.api.java.source.TypeMirrorHandle.resolve(TypeMirrorHandle.java:358) at org.netbeans.api.java.source.TypeMirrorHandle.resolve(TypeMirrorHandle.java:312) at org.netbeans.api.java.source.TypeMirrorHandle.resolve(TypeMirrorHandle.java:395) at org.netbeans.api.java.source.TypeMirrorHandle.resolve(TypeMirrorHandle.java:312) at org.netbeans.api.java.source.TypeMirrorHandle.resolve(TypeMirrorHandle.java:251)
Created attachment 158542 [details] stacktrace
Created attachment 165701 [details] stacktrace changing code with web application deployed and running