ScriptManager.java 文件源码

public MainScriptRunner(final ScriptEngine scriptEngine, final AbstractScript script) {
    this.script = script;
    this.scriptEngine = scriptEngine;
    CompiledScript compiled = null;
    if (scriptEngine instanceof Compilable) {
        logger.debug("Script {} is compilable", script.getName());
        compiled = AccessController.doPrivileged(new PrivilegedAction<CompiledScript>() {
            @Override
            public CompiledScript run() {
                try {
                    return ((Compilable) scriptEngine).compile(script.getScriptText());
                } catch (final Throwable ex) {
                    /*
                     * ScriptException is what really should be caught here. However, beanshell's ScriptEngine
                     * implements Compilable but then throws Error when the compile method is called!
                     */
                    logger.warn("Error compiling script", ex);
                    return null;
                }
            }
        });
    }
    compiledScript = compiled;
}