[COLLECTIONS-363] TransformedMap is Serializable but its superclass doesn't define an accessible void constructor

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2
• Fix Version/s: 4.0-alpha1, 4.0
• Component/s: Map
• Assignee: Unassigned
• Reporter: Sebb
• Created: 16/Oct/10 01:39
• Updated: 09/Nov/14 14:31
• Resolved: 20/Dec/10 19:25

Description

TransformedMap is Serializable but its superclass doesn't define an accessible void constructor.
For example, the following test fails:

public void testSerialisation() throws Exception {
    TransformedMap<String, String, String, String> map = TransformedMap.decorate(
            new HashMap<String, String>(),  NOPTransformer.<String> getInstance(), NOPTransformer.<String> getInstance());
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    ObjectOutputStream out = new ObjectOutputStream(bytes);
    out.writeObject(map); // fails with java.io.InvalidClassException: org.apache.commons.collections.splitmap.TransformedMap; no valid constructor
    out.close();
}