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ScriptContext

import javax.script.Bindings; import javax.script.ScriptContext; import javax.script.ScriptEngine; import javax.script.ScriptEngineManager; public class Main {   public static void main(String[] args) throws Exception {     ScriptEngineManager manager = new ScriptEngineManager();     manager.put("global", "global bindings");     dumpBindings(manager.getBindings());     ScriptEngine engine = manager.getEngineByExtension("js");     engine.put("engine", "engine bindings");     dumpBindings(engine.getBindings(ScriptContext.GLOBAL_SCOPE));     dumpBindings(engine.getBindings(ScriptContext.ENGINE_SCOPE));     Bindings bindings = engine.createBindings();     bindings.put("engine", "overridden engine bindings");     bindings.put("bindings", bindings);     engine.eval("app.dumpBindings (bindings);", bindings);     ScriptEngine engine2 = manager.getEngineByExtension("js");     engine2.put("engine2", "engine2 bindings");     dumpBindings(engine2.getBindings(ScriptContext.GLOBAL_SCOPE));     dumpBindings(engine2.getBindings(ScriptContext.ENGINE_SCOPE));     dumpBindings(engine.getBindings(ScriptContext.ENGINE_SCOPE));   }   public static void dumpBindings(Bindings bindings) {     if (bindings == null)       System.out.println("  No bindings");     else       for (String key : bindings.keySet())         System.out.println("  " + key + ": " + bindings.get(key));     System.out.println();   } }