java.lang.IllegalArgumentException: object is not an instance of declaring class

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Oracle Community by 843798, 1 year ago
object is not an instance of declaring class
via Coderanch by Neil Robinson, 11 months ago
object is not an instance of declaring class
via Oracle Community by 807546, 1 year ago
object is not an instance of declaring class
via sourceforge.net by Unknown author, 2 years ago
object is not an instance of declaring class
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:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at undefined.JarClassLoader.invokeClass(JarClassLoader.java:62)
at undefined.JarRunner.main(JarRunner.java:42)

Users with the same issue

Samebug visitor profile picture
Unknown user
Once, 3 months ago
Samebug visitor profile picture
Unknown user
Once, 1 year ago
Samebug visitor profile picture
Unknown user
Once, 2 months ago
Once, 8 months ago
2 times, 1 year ago
104 more bugmates

Know the solutions? Share your knowledge to help other developers to debug faster.