packaging maven project jboss fuse - jboss

Question

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?

Answer 1

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