I found solution for my problem with OpenJPA here: Using TomEE and open JPA, i get the following error: SEVERE: JAVA AGENT NOT INSTALLED, but adding VM parameter as in question answer or documentation https://tomee.apache.org/javaagent.html, in project’s run configuration, results in this error, after trying to run:
Error opening zip file or JAR manifest missing : openejb-javaagent-4.6.0.jar Error occurred during initialization of VM agent library failed to init: instrument
Project is JavaEE in Eclipse IDE, using Maven build tool and TomEE as JavaEE container.
VM arguments:
-Dcatalina.base="C:UserswortigsonDesktopISMatrikaBc.metadata.pluginsorg.eclipse.wst.server.coretmp0" -Dcatalina.home="C:Userswortigsonapache-tomee-8.0.5-webprofileapache-tomee-webprofile-8.0.5" -Dwtp.deploy="C:UserswortigsonDesktopISMatrikaBc.metadata.pluginsorg.eclipse.wst.server.coretmp0wtpwebapps" -javaagent:openejb-javaagent-4.6.0.jar
pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>regitry</groupId> <artifactId>WebApp</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <properties> <project.builder.sourceEncoding>UTF-8</project.builder.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <maven.compiler.source>11</maven.compiler.source> <maven.compiler.target>11</maven.compiler.target> </properties> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.1</version> <configuration> <source>11</source> <target>11</target> </configuration> </plugin> </plugins> </build> <dependencies> <dependency> <groupId>jakarta.platform</groupId> <artifactId>jakarta.jakartaee-api</artifactId> <version>8.0.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.apache.derby</groupId> <artifactId>derbyclient</artifactId> <version>10.15.2.0</version> </dependency> </dependencies>
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Answer
I had the same issue on a project of mine and I solved it by adding the full path to the openejb-javaagent-4.6.0.jar
. If you install the jar via Maven (you can see the dependencies to add here) it is in the target/
directory of your project.