[jira] [Created] (GROOVY-8113) Groovy script/template engine produce memory leak

["Artyom Kravchenko (JIRA)" <ji...@apache.org>]

Artyom Kravchenko created GROOVY-8113:
-----------------------------------------

             Summary: Groovy script/template engine produce memory leak 
                 Key: GROOVY-8113
                 URL: https://issues.apache.org/jira/browse/GROOVY-8113
             Project: Groovy
          Issue Type: Bug
          Components: GroovyScriptEngine, Templating
    Affects Versions: 2.4.8
         Environment: Groovy 2.4.8, Oracle Java JDK 8u121
            Reporter: Artyom Kravchenko


There is a simple way to produce OutOfMemoryException if  run infinite numbers of groovy scripts or evaluate groovy templates.

Simple test to reproduce a memory leak:


{code:java}

import javax.script.*;
import java.util.HashMap;
import java.util.Map;

public class OutOfMemoryTest {


    private static String TEMPLATE = "Dear ${fullName} please go away at ${time}";

    private static String SCRIPT = "def run(args) {\n" +
            "def bindings = ['fullName' : 'Ali Baba', 'time' : new Date()]\n" +
            "println args.templateEngine.createTemplate(args.template).make(bindings).toString()\n" +
            "}";

    public static void main(String... args) {
//        GroovySystem.getMetaClassRegistry().getMetaClassCreationHandler().setDisableCustomMetaClassLookup(true);
        while(true) {
            ScriptEngineManager engineManager = new ScriptEngineManager();
            ScriptEngine engine = engineManager.getEngineByName("groovy");
            try {
                engine.eval(SCRIPT);
            } catch (ScriptException e) {
                throw new RuntimeException(e);
            }
            groovy.text.SimpleTemplateEngine templateEngine = new groovy.text.SimpleTemplateEngine();
            Invocable inv = (Invocable) engine;
            Map<String, Object> params = new HashMap<>();
            params.put("template", TEMPLATE);
            params.put("templateEngine", templateEngine);

            Object[] runArgs = { params };
            try {
                inv.invokeFunction("run", runArgs);
            } catch (ScriptException | NoSuchMethodException e) {
                e.printStackTrace();
            }
        }
    }
}
{code}










--
This message was sent by Atlassian JIRA
(v6.3.15#6346)