[GROOVY-2723] XStream cannot loadXML from GroovyScriptEngine created classes

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.0-JSR-6
• Fix Version/s: 1.5.5, 1.6-beta-1
• Component/s: groovy-jdk
• Environment: Windows XP
• Flags: Patch
• Assignee: Paul King
• Reporter: Matthew Corby-Eaglen
• Created: 04/Apr/08 03:39
• Updated: 05/Apr/15 14:44
• Resolved: 09/Apr/08 06:17

Description

GroovyScriptEngine does not expose it's ClassLoader and therefore objects created and serialized using the GSE cannot be read back in.

eg.
...

Class objectClass = new GroovyScriptEngine().getClassByName(path);
Object obj = objectClass.newInstance();

XStream xstream = new XStream();
FileOutputStream out = new FileOutputStream(new File("myobj.xml"));
xstream.toXML(obj, out);
...
// input stream defs removed
obj = xstream.fromXML(xmlIn);

... causes com.thoughtworks.xstream.alias.CannotResolveClassException:, even if you set new GroovyClassLoader() as xstream's classloader it still cannot resolve the class.

Exposing the ClassLoader would enable this. Attached is a GSE that allows this.