Interpreter interpreter = new Interpreter(); interpreter.eval("cachedScript = cacheScript('script.bsh', 'someScriptCode')"); for (int i = 0; i < 10; i++) { interpreter.eval("cachedScript.invoke(" + i + ")"); } interpreter = null; void cacheScript(String scriptName, String scriptCode) { CompiledScript compiledScript = compile(scriptCode); cache.put(scriptName, compiledScript); } Object invoke(String scriptName, Object... args) { CompiledScript compiledScript = cache.get(scriptName); return compiledScript.execute(args); }