# APM Agent - Error: IllegalStateException: Target VM did not respond **URL:** \ **Category:** APM\ **Tags:** java\ **Created:** [October 10, 2020, 3:08pm UTC](https://discuss.elastic.co/t/apm-agent-error-illegalstateexception-target-vm-did-not-respond/251649 "2020-10-10T15:08:39Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![MfuentesG](https://avatars.discourse-cdn.com/v4/letter/m/f6c823/32.png) [@MfuentesG](https://discuss.elastic.co/u/MfuentesG)\ **Post date:** [October 10, 2020, 3:08pm UTC](https://discuss.elastic.co/t/apm-agent-error-illegalstateexception-target-vm-did-not-respond/251649/1 "2020-10-10T15:08:39Z")
Good morning, Could someone please help me with this other alternative configuration that we are using. WAS: 8.5.5.11 Java SDK: 8.0.6.15 APM Agent: 1.18.1 Jar File: **apm-agent-attach-1.18.1-standalone.jar** SO: RHEL7.9 - 64bits Java server: [root@wasdev ~]# **java -version** openjdk version "1.8.0\_265" OpenJDK Runtime Environment (build 1.8.0\_265-b01) OpenJDK 64-Bit Server VM (build 25.265-b01, mixed mode) Java WAS: [root@wasdev bin]# /opt/IBM/WebSphere/AppServer/java\_1.8\_64/jre/bin/java -version java version "1.8.0\_261" Java(TM) SE Runtime Environment (build 8.0.6.15 - pxa6480sr6fp15ifix-20200820\_01(SR6 FP15+IJ26443)) IBM J9 VM (build 2.9, JRE 1.8.0 Linux amd64-64-Bit Compressed References 20200729\_452626 (JIT enabled, AOT enabled) OpenJ9 - 43296bc OMR - 08b0594 IBM - 70917a2) JCL - 20200720\_01 based on Oracle jdk8u261-b13 [root@wasdev bin]# **jps -lv** 3236 sun.tools.jps.Jps -Dapplication.home=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.265.b01-1.el7\_9.x86\_64 -Xms8m [root@wasdev bin]# ./startServer.sh server1 -profileName Nodo01 ADMU0116I: Tool information is being logged in file /opt/IBM/WebSphere/AppServer/profiles/Nodo01/logs/server1/startServer.log ADMU0128I: Starting tool with the Nodo01 profile ADMU3100I: Reading configuration for server: server1 ADMU3200I: Server launched. Waiting for initialization status. ADMU3000I: Server server1 open for e-business; **process id is 5098** root@wasdev bin]# top | grep **5098** **5098** root 20 0 3125680 221612 68236 S 0.7 5.3 1:14.16 java [root@wasdev bin]# /usr/bin/java -jar /opt/AgentAPMElastic/apm-agent-attach-1.18.1-standalone.jar --list 5226 /opt/AgentAPMElastic/apm-agent-attach-1.18.1-standalone.jar [root@wasdev bin]# /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.265.b01-1.el7\_9.x86\_64/jre/bin/java -jar /opt/AgentAPMElastic/apm-agent-attach-1.18.1-standalone.jar -- **pid 5098** 2020-10-10 12:02:20.652 INFO Attaching the Elastic APM agent to **5098** Exception in thread "main" java.lang.IllegalStateException: Error during attachment using: co.elastic.apm.attach.bytebuddy.agent.ByteBuddyAgent$AttachmentProvider$Compound@45fe3ee3 at co.elastic.apm.attach.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:613) at co.elastic.apm.attach.bytebuddy.agent.ByteBuddyAgent.attach(ByteBuddyAgent.java:273) at co.elastic.apm.attach.ElasticApmAttacher.attach(ElasticApmAttacher.java:159) at co.elastic.apm.attach.RemoteAttacher.main(RemoteAttacher.java:88) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at co.elastic.apm.attach.bytebuddy.agent.Attacher.install(Attacher.java:106) at co.elastic.apm.attach.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:608) ... 3 more Caused by: java.lang.IllegalStateException: **Target VM did not respond: 5098** at co.elastic.apm.attach.bytebuddy.agent.VirtualMachine$ForHotSpot$Connection$Factory$ForSocketFile.connect(VirtualMachine.java:541) at co.elastic.apm.attach.bytebuddy.agent.VirtualMachine$ForHotSpot.attach(VirtualMachine.java:256) at co.elastic.apm.attach.bytebuddy.agent.VirtualMachine$ForHotSpot.attach(VirtualMachine.java:243) ... 9 more [root@wasdev bin]# ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [October 31, 2020, 11:08am UTC](https://discuss.elastic.co/t/apm-agent-error-illegalstateexception-target-vm-did-not-respond/251649/2 "2020-10-31T11:08:44Z")
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