compiling java file in ros environment

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I used command EXECUTE_PROCESS(COMMAND "${PROJECT_SOURCE_DIR}/classes/javac Server.java") in at the end in CMakeList.txt of my_pkg. The package was comiped successfully but I dont see any Server.class anywhere..am I doing something wrong?

Don't use execute_process. It will be executed during configuration, not when your targets are built. You really need to use a custom command. If you need examples for building jave, have a look at client_rosjava_jni. There we define a cmake macro for building java code.

I had a look at http://ros.org/rosdoclite/fuerte_bak/api/client_rosjava_jni/repo.yaml and stack.yaml I didn't find any clue about "javac". I dont want to depend upon rosjava. want a command to compile Server.java and give Server.class in my_pkg/classes dir. Can you plz just write me command? thnx

Just have a look at the corresponding cmake macros in client_rosjava_jni. You don't need to use it or depend on it. Just copy and adjust the cmake macro.

I found this command in macro add_java_source_dir_internal: COMMAND ${JAVA_COMPILE} -source 1.5 -classpath "${_javac_classpath_param}:$ENV{ROSJAVA_AUX_CLASSPATH}" -d ${JAVA_OUTPUT_DIR} ${_java_source_files} but I don' understand how does it execute javac