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 GitHub by vruusmann
, 1 year ago
opcode not implemented: INST
via GitHub by skamath58
, 5 months ago
invalid pickle opcode: 254
net.razorvine.pickle.InvalidOpcodeException: opcode not implemented: INST	at net.razorvine.pickle.Unpickler.dispatch(Unpickler.java:218)	at org.jpmml.sklearn.PickleUtil$1.dispatch(PickleUtil.java:146)	at net.razorvine.pickle.Unpickler.load(Unpickler.java:100)	at org.jpmml.sklearn.PickleUtil.unpickle(PickleUtil.java:198)	at org.jpmml.sklearn.Main.run(Main.java:111)