# Java Agent for a Tomcat JVM **URL:** \ **Category:** APM\ **Created:** [February 13, 2019, 11:27am UTC](https://discuss.elastic.co/t/java-agent-for-a-tomcat-jvm/168197 "2019-02-13T11:27:25Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Oliv](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/oliv/32/111867_2.png) [@Oliv](https://discuss.elastic.co/u/Oliv)\ **Post date:** [February 13, 2019, 11:27am UTC](https://discuss.elastic.co/t/java-agent-for-a-tomcat-jvm/168197/1 "2019-02-13T11:27:26Z")
Hi, I'm trying to pass the jar file with a properties file. As I understood that this was possible. The properties file is in the same folder and named elasticapm.properties. How can I pass this file at the startup of my Tomcat. Br, ---
**Author:** ![Wolfram\_Haussig](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/wolfram_haussig/32/70528_2.png) [@Wolfram\_Haussig](https://discuss.elastic.co/u/Wolfram_Haussig)\ **Post date:** [February 13, 2019, 11:51am UTC](https://discuss.elastic.co/t/java-agent-for-a-tomcat-jvm/168197/2 "2019-02-13T11:51:43Z")
Hello, We use the java agent in version 1.3 and this is what we added to the startup.sh file: > JAVA\_OPTS="$JAVA\_OPTS -javaagent:/home/tomcat/apm-agent/elastic-apm-agent-1.3.0.jar " > export JAVA\_OPTS ---
**Author:** ![felixbarny](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/felixbarny/32/27341_2.png) [@felixbarny](https://discuss.elastic.co/u/felixbarny)\ **Post date:** [February 13, 2019, 12:48pm UTC](https://discuss.elastic.co/t/java-agent-for-a-tomcat-jvm/168197/3 "2019-02-13T12:48:00Z")
Hi and thanks for checking out Elastic APM 🙂 The `elasticapm.properties` is only for the configuration settings of the agent and does not replace setting the `-javaagent` argument. See also [https://www.elastic.co/guide/en/apm/agent/java/master/configuration.html](https://www.elastic.co/guide/en/apm/agent/java/master/configuration.html) You can find tomcat installation instructions here: [https://www.elastic.co/guide/en/apm/agent/java/master/setup-javaagent.html#setup-tomcat](https://www.elastic.co/guide/en/apm/agent/java/master/setup-javaagent.html#setup-tomcat) Cheers, Felix ---
**Author:** ![Oliv](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/oliv/32/111867_2.png) [@Oliv](https://discuss.elastic.co/u/Oliv)\ **Post date:** [February 13, 2019, 2:01pm UTC](https://discuss.elastic.co/t/java-agent-for-a-tomcat-jvm/168197/4 "2019-02-13T14:01:17Z")
Hi, Found out how to pass the configuration file. Used -Delastic.apm.configuration=file: in my tomcat options to make it work. Thx Felix for the information, But just missed the info about the configuration file ---
**Author:** ![felixbarny](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/felixbarny/32/27341_2.png) [@felixbarny](https://discuss.elastic.co/u/felixbarny)\ **Post date:** [February 13, 2019, 4:09pm UTC](https://discuss.elastic.co/t/java-agent-for-a-tomcat-jvm/168197/5 "2019-02-13T16:09:09Z")
> [@Oliv](#): > > Used -Delastic.apm.configuration=file: in my tomcat options to make it work. This is not an option I'm aware of. Where did you read about that? You have to put the `elasticapm.properties` file in the same directory where the agent jar is in. ---
**Author:** ![Oliv](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/oliv/32/111867_2.png) [@Oliv](https://discuss.elastic.co/u/Oliv)\ **Post date:** [February 14, 2019, 10:11am UTC](https://discuss.elastic.co/t/java-agent-for-a-tomcat-jvm/168197/6 "2019-02-14T10:11:48Z")
Tomcat configuration files are modified to start our application. In order to not screw up things I modified it directy in the registry. Checked out the other startup option where I found that. The file was in th same directory since the beginning I tested, it has been picked up since I putted this in the startup options. ---
**Author:** ![felixbarny](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/felixbarny/32/27341_2.png) [@felixbarny](https://discuss.elastic.co/u/felixbarny)\ **Post date:** [February 14, 2019, 10:51am UTC](https://discuss.elastic.co/t/java-agent-for-a-tomcat-jvm/168197/7 "2019-02-14T10:51:21Z")
> [@Oliv](#): > > Checked out the other startup option where I found that. Do you have a link at hand? ---
**Author:** ![Oliv](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/oliv/32/111867_2.png) [@Oliv](https://discuss.elastic.co/u/Oliv)\ **Post date:** [February 14, 2019, 11:02am UTC](https://discuss.elastic.co/t/java-agent-for-a-tomcat-jvm/168197/8 "2019-02-14T11:02:44Z")
Sorry Felix, Was talking about the other startup options set in the registry for Tomcat. I'll try to inform where our R&D found these informations. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [March 7, 2019, 7:02am UTC](https://discuss.elastic.co/t/java-agent-for-a-tomcat-jvm/168197/9 "2019-03-07T07:02:48Z")
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