LinkageError

[Mark Warner]

I am getting this error when I try to mock JTextField .
java.lang.LinkageError: loader constraint violation in interface itable initialization: when resolving method "javax.swing.text.JTextComponent$1.dropLocationForPoint(Ljavax/swing/text/JTextComponent;Ljava/awt/Point;)Ljavax/swing/TransferHandler$DropLocation;" the class loader (instance of org/powermock/core/classloader/MockClassLoader) of the current class, javax/swing/text/JTextComponent$1, and the class loader (instance of <bootloader>) for interface sun/swing/SwingAccessor$JTextComponentAccessor have different Class objects for the type mponent$1.dropLocationForPoint(Ljavax/swing/text/JTextComponent;Ljava/awt/Point;)Ljavax/swing/TransferHandler$DropLocation; used in the signature
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:191)
    at javassist.runtime.Desc.getClassObject(Desc.java:43)


I tried to use @PowerMockIgnore( {"javax.management.*","javax.security.*","javax.ws.*"})


nothing works.