mc

mc-redefine online tutorial

Memory compiler, compiles .java files into .class files in memory.

mc /tmp/Test.java

The classloader can be specified with the -c option:

mc -c 327a647b /tmp/Test.java

The output directory can be specified with the -d option:

mc -d /tmp/output /tmp/ClassA.java /tmp/ClassB.java

After compiling the .class file, you can use the redefine command to re-define the loaded classes in JVM.

Note that the mc command may fail. If the compilation fails, the .class file can be compiled locally and uploaded to the server. Refer to the redefine command description for details.