To compile JavaPayload for Metasploit (including Java Meterpreter), you need Maven 3.0 or above. Just run
mvn package
to package all the files, or
mvn -P deploy package
to package all the files and copy them into the correct place for Metasploit
(../metasploit-framework/data/java). If you get spurious compilation errors,
make sure that there is an exclude rule in your antivirus for the Metasploit
directory (or that your antivirus is disabled).
If the path to your metasploit framework repository is not ../metasploit-framework,
but for example ../msf3, use
mvn -D deploy.path=../msf3 -P deploy package
In case you want to edit/debug JavaPayload for Metasploit or Java Meterpreter, Maven provides plugins to auto-generate project files for your favourite IDE (at least for Eclipse, Netbeans or IntelliJ). I use Eclipse, so to generate project files I use
mvn eclipse:eclipse
This will generate project files that can be imported via
File->Import->Existing Projects into Workspace
into your Eclipse workspace.
(Note that if this is your first Maven project you want to use in Eclipse, you also have to run
mvn -Declipse.workspace=/path/to/your/workspace eclipse:configure-workspace
to set up path variables like M2_REPO to point to the correct location.)
For NetBeans or IntelliJ IDEA, refer to the documentation at
http://maven.apache.org/netbeans-module.html http://maven.apache.org/plugins/maven-idea-plugin/
mvn package -Dandroid.sdk.path=/path/to/android-sdk-linux/