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2.2. Java compilers
Java compilers must provide java-compiler and/or java2-compiler and depend on java-common. They must also depend on the needed runtime environemnt (java1-runtime and/or java2-runtime).
They should use /etc/alternatives for the name 'javac' if they are command-line compatible with Sun's JDK javac. They should have a CLASSPATH predefined to include the java core classes need for the compiler.