Are these the reasons as below? It seems very similar as what I met. https://dzone.com/articles/native-memory-leak-example
https://docs.oracle.com/javase/8/docs/api/java/lang/instrument/ClassFileTransformer.html#transform-java.lang.ClassLoader-java.lang.String-java.lang.Class-java.security.ProtectionDomain-byte:A-  [ Full content available at: https://github.com/apache/incubator-skywalking/issues/1666 ] This message was relayed via gitbox.apache.org for devnull@infra.apache.org