A Generic Java Language Extension
Installation and TroubleShooting
I can't seem to get the retrofitted java.util classes to work!
JDK 1.2 has a different classpath regime than JDK 1.1. Instead of a single classpath, there is now a bootclasspath and a user classpath. When loading classes, the compiler looks up the bootclasspath first, then, if the class was not found there, the user classpath. The bootclasspath is by default set to \jdk1.2\jre\lib\rt.jar;\jdk1.2\jre\lib\i18n.jar (Assuming \jdk1.2 is the directory where you have installed JDK 1.2). The problem is that the rt.jar archive contains the original collection classes. Since the bootclasspath is searched first, the compiler will never find the retrofitted versions! The problem can be fixed by prefixing the bootclasspath with your own classes directory (the one where you keep the retrofitted collection classes). On Windows, this is achieved by having the batch file gjc.bat read as follows: java -ms12m gjc.Main -bootclasspath \gj\classes\;c:\jdk1.2\jre\lib\rt.jar;c:\jdk1.2\jre\lib\i18n.jar %1 %2 %3 %4 %5 %6 %7 %8 %9 On Unix, an alias such as alias gjc java -ms12m gjc.Main -bootclasspath $HOME\gj\classes:$HOME\jdk1.2\jre\lib\rt.jar:$HOME\jdk1.2\jre\lib\i18n.jar should work.
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