0002028: Hessian: Unsupported operation exception

2028

minor

always

09-25-07 09:16

09-28-07 13:36

Reporter:

ferg

Platform:

Assigned To:

ferg

OS:

Priority:

normal

OS Version:

Status:

closed

Product Version:

3.1.2

Product Build:

Resolution:

fixed

Projection:

none

ETA:

none

Fixed in Version:

3.1.3

Summary:

0002028: Hessian: Unsupported operation exception

Description:

(rep by Jerome Landreau)

I am using Hessian version 3.1.2 and I have an exception when I try to deserialize my object:

java.lang.UnsupportedOperationException: com.caucho.hessian.io.CollectionDeserializer@152dd7b
        at com.caucho.hessian.io.AbstractDeserializer.readLengthList(AbstractDeserializer.java:77)
        at com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1839)
        at com.caucho.hessian.io.MapDeserializer.readMap(MapDeserializer.java:117)
        at com.caucho.hessian.io.SerializerFactory.readMap(SerializerFactory.java:347)
        at com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1845)
        at com.caucho.hessian.io.MapDeserializer.readMap(MapDeserializer.java:117)
        at com.caucho.hessian.io.SerializerFactory.readMap(SerializerFactory.java:347)
        at com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1845)
        at com.caucho.hessian.io.CollectionDeserializer.readList(CollectionDeserializer.java:111)
        at com.caucho.hessian.io.SerializerFactory.readList(SerializerFactory.java:333)
        at com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1827)
        at com.caucho.hessian.io.CollectionDeserializer.readList(CollectionDeserializer.java:111)
        at com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1577)
        at com.caucho.hessian.io.JavaDeserializer$ObjectFieldDeserializer.deserialize(JavaDeserializer.java:375)
        at com.caucho.hessian.io.JavaDeserializer.readObject(JavaDeserializer.java:228)

This is the code that I am using to deserialize my object is:

ByteArrayInputStream bais = new ByteArrayInputStream(data);
Hessian2Input in = new Hessian2Input(bais);
Object o = in.readObject();
in.close();

After some debugging, I have found that the problem is in this part of the method "Hessian2Input.readObject()":

case 'v': {
      int ref = readInt();
      String type = (String) _types.get(ref);
      int length = readInt();

      Deserializer reader;
      reader = findSerializerFactory().getObjectDeserializer(type);

      return reader.readLengthList(this, length);
    }

The type is a custom class which implements java.util.List and the reader is an instance of CollectionDeserializer wich extends the class AbstractDeserializer.
The problem is that CollectionDeserializer doesnt't override the readLengthList method of the class AbstractDeserializer which throws an UnsuportedException.

Steps To Reproduce:

Additional Information:

Relationships

Attached Files:

Mantis - Resin
Viewing Issue Advanced Details

ID:	Category:	Severity:	Reproducibility:	Date Submitted:	Last Update:
2028		minor	always	09-25-07 09:16	09-28-07 13:36

Reporter:	ferg	Platform:
Assigned To:	ferg	OS:
Priority:	normal	OS Version:
Status:	closed	Product Version:	3.1.2
Product Build:		Resolution:	fixed
Projection:	none
ETA:	none	Fixed in Version:	3.1.3

Summary:	0002028: Hessian: Unsupported operation exception
Description:	(rep by Jerome Landreau) I am using Hessian version 3.1.2 and I have an exception when I try to deserialize my object: java.lang.UnsupportedOperationException: com.caucho.hessian.io.CollectionDeserializer@152dd7b at com.caucho.hessian.io.AbstractDeserializer.readLengthList(AbstractDeserializer.java:77) at com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1839) at com.caucho.hessian.io.MapDeserializer.readMap(MapDeserializer.java:117) at com.caucho.hessian.io.SerializerFactory.readMap(SerializerFactory.java:347) at com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1845) at com.caucho.hessian.io.MapDeserializer.readMap(MapDeserializer.java:117) at com.caucho.hessian.io.SerializerFactory.readMap(SerializerFactory.java:347) at com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1845) at com.caucho.hessian.io.CollectionDeserializer.readList(CollectionDeserializer.java:111) at com.caucho.hessian.io.SerializerFactory.readList(SerializerFactory.java:333) at com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1827) at com.caucho.hessian.io.CollectionDeserializer.readList(CollectionDeserializer.java:111) at com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1577) at com.caucho.hessian.io.JavaDeserializer$ObjectFieldDeserializer.deserialize(JavaDeserializer.java:375) at com.caucho.hessian.io.JavaDeserializer.readObject(JavaDeserializer.java:228) This is the code that I am using to deserialize my object is: ByteArrayInputStream bais = new ByteArrayInputStream(data); Hessian2Input in = new Hessian2Input(bais); Object o = in.readObject(); in.close(); After some debugging, I have found that the problem is in this part of the method "Hessian2Input.readObject()": case 'v': { int ref = readInt(); String type = (String) _types.get(ref); int length = readInt(); Deserializer reader; reader = findSerializerFactory().getObjectDeserializer(type); return reader.readLengthList(this, length); } The type is a custom class which implements java.util.List and the reader is an instance of CollectionDeserializer wich extends the class AbstractDeserializer. The problem is that CollectionDeserializer doesnt't override the readLengthList method of the class AbstractDeserializer which throws an UnsuportedException.
Steps To Reproduce:
Additional Information:
Relationships
Attached Files: