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jbossmaven-3jbossfusefuseesb

packaging maven project jboss fuse

In my project I connect to a mysql database. To deploy my jar on jboss fuse I need to add mysql-connector-java to the deploy folder. Do you have an idea how to package my project to deliver a single jar?

Solution

  • To embed a jar inside your bundle do the following:

    1) Declare it as a dependency

    <dependencies>
    <dependency>
        <groupId>com.your.company</groupId>
        <artifactId>your-needed-jar</artifactId>
        <version>1.3.4</version>
    </dependency>
<dependencies>

    2) Tell maven-bundle-plugin to embed it.

    <build>
    <plugins>
        <plugin>
            <groupId>org.apache.felix</groupId>
            <artifactId>maven-bundle-plugin</artifactId>
            <version>3.0.1</version>
            <extensions>true</extensions>
            <configuration>
                <instructions>
                    <Embed-Dependency>your-needed-jar</Embed-Dependency>
                    <Import-Package>
                        eventually.unneded.pkg;resolution:="optional",
                        *
                    </Import-Package>
                    <Export-Package>
                        com.your.company.app.exportedpkg
                    </Export-Package>
                </instructions>
            </configuration>
        </plugin>
    </plugins>
</build>

    While this work in general cases, there may be classloading issues with libraries which do a lot of runtime class proxying and class generation (like ORMs).

    IMHO a better approach would be to make the library available from JBoss Fuse itself. To do so:
    1) copy mysql-connector-java-xxx.java in JBoss Fuse lib/ directory
    2) edit config.properties in JBoss etc/ Fuse directory
    3) add com.mysql.jdbc package to the list

    org.osgi.framework.system.packages= \
 ...
 org.apache.karaf.diagnostic.core;version="2.4.0.redhat-621084", \
 com.mysql.jdbc;version="xxx", \

    Now you don't need to embed the library in your bundle, you can directly import it. The system bundle (ID:0) is exporting it.

    For further reference this PDF document may provide helpful information: Red Hat JBoss Fuse 6.2 Managing OSGi Dependencies