# APM Agent does not start **URL:** \ **Category:** APM\ **Tags:** java\ **Created:** [October 14, 2020, 1:48pm UTC](https://discuss.elastic.co/t/apm-agent-does-not-start/252054 "2020-10-14T13:48:37Z")\ **Posts on this page:** 5\ **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 14, 2020, 1:48pm UTC](https://discuss.elastic.co/t/apm-agent-does-not-start/252054/1 "2020-10-14T13:48:37Z")
HI, **Kibana version** : 7.9 **Elasticsearch version** : 7.9 **APM Server version** : 7.9.2 **APM Agent language and version** : elastic-apm-agent-1.18.1.jar **Browser version** : Chrome Versión 86.0.4240.75 (Build oficial) (64 bits) **Original install method (e.g. download page, yum, deb, from source, etc.) and version**: yum **Fresh install or upgraded from other version?** not **Is there anything special in your setup?** not. **Description of the problem including expected versus actual behavior. Please include screenshots (if relevant)**: **Steps to reproduce** : 1. Generic JVM arguments: -javaagent:/opt/AgentAPMElastic/elastic-apm-agent-1.18.1.jar -Delastic.apm.service\_name=Bankx23 -Delastic.apm.server\_urls=http://192.x.x.x:8200 -Delastic.apm.application\_packages=org.bi,org.bankx23l **Errors in browser console (if relevant)**:not **Provide logs and/or server output (if relevant)**: WAS native\_stderr.log: \*Error: Could not find or load main class \* ERROR IndyBootstrap null java.nio.channels.ClosedByInterruptException at java.nio.channels.spi.AbstractInterruptibleChannel.end(AbstractInterruptibleChannel.java:220) at sun.nio.ch.FileChannelImpl.size(FileChannelImpl.java:327) at com.sun.nio.zipfs.ZipFileSystem.findEND(ZipFileSystem.java:975) at com.sun.nio.zipfs.ZipFileSystem.initCEN(ZipFileSystem.java:1042) at com.sun.nio.zipfs.ZipFileSystem.(ZipFileSystem.java:142) at com.sun.nio.zipfs.ZipFileSystemProvider.newFileSystem(ZipFileSystemPr .WAS native\_stdout.log: Listening for transport dt\_socket at address: 7779 2020-10-10 11:39:00,493 [main] INFO co.elastic.apm.agent.util.JmxUtils - Found JVM-specific OperatingSystemMXBean interface: com.ibm.lang.management.OperatingSystemMXBean 2020-10-10 11:39:00,781 [main] INFO co.elastic.apm.agent.configuration.StartupInfo - Starting Elastic APM 1.18.1 as - on Java 1.8.0\_261 Runtime version: 8.0.6.15 - pxa6480sr6fp15ifix-20200820\_01(SR6 FP15+IJ26443) VM version: 2.9 (IBM Corporation) Linux 3.10.0-1160.2.1.el7.x86\_64 2020-10-10 11:39:00,783 [main] WARN co.elastic.apm.agent.configuration.StartupInfo - To enable all features and decrease startup time, please configure application\_packages 2020-10-10 11:39:08,265 [main] INFO co.elastic.apm.agent.impl.ElasticApmTracer - Tracer switched to RUNNING state 2020-10-10 11:39:08,339 [elastic-apm-init-instrumentation-shutdown-hook] INFO co.elastic.apm.agent.impl.ElasticApmTracer - Tracer switched to STOPPED state 2020-10-10 11:39:08,700 elastic-apm-remote-config-poller ERROR No Log4j 2 configuration file found. Using default configuration (logging only errors to the console), or user programmatically provided configurations. Set system property 'log4j2.debug' to show Log4j 2 internal initialization logging. See [https://logging.apache.org/log4j/2.x/manual/configuration.html](https://logging.apache.org/log4j/2.x/manual/configuration.html) for instructions on how to configure Log4j 2 "native\_stdout.log" 101L, 16237C WAS: 8.5.5.11 Java SDK: 8.0.6.15 SO: RHEL7.9 - 64bits 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 ---
**Author:** ![Eyal\_Koren](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eyal_koren/32/36830_2.png) [@Eyal\_Koren](https://discuss.elastic.co/u/Eyal_Koren)\ **Post date:** [October 26, 2020, 10:29am UTC](https://discuss.elastic.co/t/apm-agent-does-not-start/252054/2 "2020-10-26T10:29:27Z")
> [@MfuentesG](#): > > java.nio.channels.spi.AbstractInterruptibleChannel.end(AbstractInterruptibleChannel.java:220) > at sun.nio.ch.FileChannelImpl.size(FileChannelImpl.java:327) > at com.sun.nio.zipfs.ZipFileSystem.findEND(ZipFileSystem.java:975) > at com.sun.nio.zipfs.ZipFileSystem.initCEN(ZipFileSystem.java:1042) > at com.sun.nio.zipfs.ZipFileSystem.(ZipFileSystem.java:142) > at com.sun.nio.zipfs.ZipFileSystemProvider.ne Please provide the full log, or at least the full related stack trace. Also, does it happens consistently every time you start the app or only occasionally? ---
**Author:** ![MfuentesG](https://avatars.discourse-cdn.com/v4/letter/m/f6c823/32.png) [@MfuentesG](https://discuss.elastic.co/u/MfuentesG)\ **Post date:** [October 26, 2020, 3:56pm UTC](https://discuss.elastic.co/t/apm-agent-does-not-start/252054/3 "2020-10-26T15:56:28Z")
Thank you very much for answering, I already solved it, the problem was something very silly. In the JVM arguments I took out the \ (Backslash) and it worked perfect. Before: -javaagent:/opt/AgentAPMElastic/elastic-apm-agent-1.18.1.jar "\" -Delastic.apm.service\_name=BankIn123 "\" -Delastic.apm.server\_urls=http://192.x.x.x:8200 "\" -Delastic.apm.application\_packages=org.bi,org.bankint123 Then: -javaagent:/opt/AgentAPMElastic/elastic-apm-agent-1.18.1.jar -Delastic.apm.service\_name=BankIn123 -Delastic.apm.server\_urls=http://192.x.x.x:8200 -Delastic.apm.application\_packages=org.bi,org.bankint123 Thank you ---
**Author:** ![Eyal\_Koren](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eyal_koren/32/36830_2.png) [@Eyal\_Koren](https://discuss.elastic.co/u/Eyal_Koren)\ **Post date:** [October 26, 2020, 4:01pm UTC](https://discuss.elastic.co/t/apm-agent-does-not-start/252054/4 "2020-10-26T16:01:08Z")
Huh, good to know! Thanks for reporting 🙏 How does it work for you? Are you getting the insights you expected for? We don't test continuously on WAS, so it would be nice to get feedback on that. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [November 16, 2020, 12:01pm UTC](https://discuss.elastic.co/t/apm-agent-does-not-start/252054/5 "2020-11-16T12:01:11Z")
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