从18c导入19c后的ORA-29545

Question

将数据从18c迁移到19c之后。我得到了一些错误ORA-29545的无效Java类对象。我检查了JVM java -version。两者都是Java SE 1.8。 我不知道他们为什么会破产，有人对此有经验吗？谢谢。

29545. 00000 -  "badly formed class: %s"
*Cause:    An attempt was made to create a Java class object with bytecodes
           that were rejected by the Java verifier.
*Action:   It is possible that an attempt was made to create the Java class
           from a damaged class file, in which case the CREATE should be
           reattempted with a correct class file.  It is also possible that
           the message is the result of using "-" in the resolver so that
           the verifier could not check the correctness of some code.  In
           that case, the class needs to be created with a resolver.