marker 文件中记录的实测调用栈也落在这条链上:
ConnectionVerifier#main
com.ibm.db2.jcc.am.CallableStatement#b com.ibm.db2.jcc.t4.a#a com.ibm.db2.jcc.t4.r#a(Exception, aj) com.ibm.db2.jcc.t4.b#a(c6) com.ibm.db2.jcc.am.k9#a(String, boolean)
-> java.io.ObjectInputStream#readObject
ConnectionVerifier#main
com.ibm.db2.jcc.am.CallableStatement#b com.ibm.db2.jcc.t4.a#a com.ibm.db2.jcc.t4.r#a(Exception, aj) com.ibm.db2.jcc.t4.b#a(c6) com.ibm.db2.jcc.am.k9#a(String, boolean)
-> java.io.ObjectInputStream#readObject