[XMLRPC-129] typecast errors when arrays are returned

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 3.0
• Component/s: Source
• Environment: linux, java 1.4.2
• Assignee: Unassigned
• Reporter: kamin
• Created: 21/Dec/06 14:59
• Updated: 28/Nov/08 20:53
• Resolved: 11/Feb/07 21:41

Description

Java throws a ClassCastException when an array return value is cast to a typed array, for XML-RPC functions that return arrays.

For example, the function

public Integer[] foo(Integer[] val)

{ return val; }

will work fine with the following client code:

Integer[] param = new Integer[5];
Object[] result = (Object[])server.execute("Server.foo", param);

But the following will throw a class cast exception

Integer[] param = new Integer[5];
Integer[] result = (Integer[])server.execute("Server.foo", param);

This error was first documented on the mailing list in this thread:
http://mail-archives.apache.org/mod_mbox/ws-xmlrpc-dev/200609.mbox/[e-mail]%3e

The response to the email suggests that this should be easy to fix.