java.lang.VerifyError after using agent

Alexander_Soin — Mon, 28 Dec 2020 21:47:43 GMT

Hi all,

I get the java.lang.VerifyError running the Java service with the appdyn agent.

Constructor threw exception; nested exception is java.lang.VerifyError: Expecting a stackmap frame at branch target 190
Exception Details:
  Location:
    com/.../TCPConnectImpl.<init>()V @165: ifnull
  Reason:
    Expected stackmap frame at this location.
  Bytecode:
    0x0000000: 013a 0701 3a08 013a 092a b700 1110 06bd
    0x0000010: 0085 5903 2b53 5904 1cb8 0087 5359 052d
    ...
    0x00001a0: 1304 1919 0813 041b 1304 1c19 0919 0719
    0x00001b0: 0db8 042a bf                           
  Exception Handler Table:
    bci [208, 216] => handler: 219
    bci [259, 264] => handler: 267
    bci [321, 410] => handler: 410
  Stackmap Table:
    full_frame(@410,{Object[#368],Object[#776],Integer,Object[#370],Integer,Object[#569],Object[#603],Object[#133],Object[#368],Object[#1068]},{Object[#428]})

The command I used looks like the following:

java -javaagent:/opt/appdyn/javaagent/current/javaagent.jar -jar app.jar

Could you please advice why app dynamics instrumentation can cause this error?

Is there any way to avoid this error? (possibly excluding this particular TCPConnectImpl class from instrumentation?)

Re: java.lang.VerifyError after using agent

iamryan — Mon, 04 Jan 2021 21:21:52 GMT

Hi @Alexander.Soin,

I found this existing AppD Knowledge base article that mentions this error. Please let me know if it's any help.

How to resolve IBM application error with Java Agent

topic Re: java.lang.VerifyError after using agent in Splunk AppDynamics

java.lang.VerifyError after using agent

Re: java.lang.VerifyError after using agent