Custom plugin execution getting failed with error "Plugin Execution Failed java.lang.IllegalArgument
We have created one custom plugin to use the web-service of a third party application for additional authentication(2nd Factor Authentication).
The plugin execution getting failed with the below error,
<oracle.oam.engine.authn> <BEA-000000> <Plugin Execution Failed.
java.lang.IllegalArgumentException: interface wsdl.AuthenticationService is not visible from class loader
at java.lang.reflect.Proxy.getProxyClass0(Proxy.java:461)
at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:690)
at weblogic.wsee.jaxws.spi.ClientInstance.createProxyInstance(ClientInstance.java:143)
at weblogic.wsee.jaxws.spi.WLSProvider$ServiceDelegate.getPort(WLSProvider.java:899)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:344)
at weblogic.wsee.jaxws.spi.WLSProvider$ServiceDelegate.getPort(WLSProvider.java:836)