[GROOVY-5864] @AutoExternalize doesn't create no-argument constructor

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.5, 2.0.6
• Fix Version/s: 2.3.0-beta-1
• Component/s: xforms
• Assignee: Paul King
• Reporter: Johann
• Created: 22/Dec/12 07:42
• Updated: 05/Apr/14 00:00
• Resolved: 15/Jan/14 03:36

Description

@AutoExternalize doesn't create a no-argument constructor, which is required to use Externalizable.

>javap -classpath .;c:\Users\Johann\.m2\repository\org\codehaus\groovy\groovy\2.0.5\groovy-2.0.5.jar xyz.Stream | grep Stream
Compiled from "Stream.groovy"
public final class xyz.Stream implements java.io.Externalizable,groovy.lang.GroovyObject {
  public xyz.Stream(java.util.HashMap);
  public xyz.Stream(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.Int
eger, java.lang.Integer, java.lang.Long);
>

Consequently, attempts at deserializing fail:

classOrInstanceShouldBeSerializable[2](xyz.SerializationTest)  Time elapsed: 0.016 sec  <<< ERROR!
org.apache.commons.lang.SerializationException: java.io.InvalidClassException: xyz.Stream; no valid consuctor
        at org.apache.commons.lang.SerializationUtils.deserialize(SerializationUtils.java:168)
...
Caused by: java.io.InvalidClassException: xyz.Stream; no valid constructor
        at java.io.ObjectStreamClass$ExceptionInfo.newInvalidClassException(ObjectStreamClass.java:147)
        at java.io.ObjectStreamClass.checkDeserialize(ObjectStreamClass.java:755)
...