Use an external compiler

Resin uses a compiler to compile the java code that is generated for jsp, xsl, and php. The compiler is also used to compile java source files such as servlets.

Eclipse compiler

The eclipse compiler requires the presence of $RESIN_HOME/lib/eclipse-compiler.jar. It is a very fast compiler that was developed as part of the Eclipse project.

In resin.conf with the javac configuration option:

 <javac compiler="eclipse" args="-source 1.5"/>

Internal compiler

The internal compiler requires tools.jar from the JDK installation, so a JDK must be used (not a JRE).

Sometimes the internal compiler causes errors, creating exceptions or simply hanging and taking up a thread. The solution is to change the compiler to use an external compiler.

In resin.conf with the javac configuration option:

 <javac compiler="internal" args=""/>

javac JDK compiler

The javac compiler is included with the JDK. It executes that same as the internal compiler, however it is executed as an external process and is less prone to the problems described for the internal compiler.

In resin.conf with the javac configuration option:

 <javac compiler="javac" args=""/>

Jikes compiler

In resin.conf with the javac configuration option:

 <javac compiler="jikes" args=""/>