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    Thrown to indicate that a method has been passed an illegal or inappropriate argument. Check that you don't have more than one method existing with the same name.

Solutions on the web

via Stack Overflow by nomula
, 2 years ago
via sourceforge.net by Unknown author, 1 year ago
object is not an instance of declaring class
via Google Groups by Tone Loc, 1 year ago
object is not an instance of declaring class
via GitHub by johanandren
, 1 year ago
object is not an instance of declaring class
via Stack Overflow by Divya
, 2 years ago
via apache.org by Unknown author, 1 year ago
java.lang.IllegalArgumentException: object is not an instance of declaring class	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)