Issue while keymatch export - class file has wrong version 50.0, should be 49.0

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Wrote a client Program to export keymatches
2. Set Java version to 5.0 (JDK1.5)
3. Set all admin related binaries in the classpath.

What is the expected output? What do you see instead?
Error: class file has wrong version 50.0, should be 49.0
When changing the java version to jdk1.6 it works fine.

What version of the product are you using? On what operating system?
Windows

Please provide any additional information below.

GSAClientDemo.java:4: cannot access 
com.google.enterprise.apis.client.GsaEntry
bad class file: C:\Google\Admin\gdata\java\lib\gdata-gsa-1.0.jar
(com/google/enterprise/apis/client/GsaEntry.class)
class file has wrong version 50.0, should be 49.0
Please remove or make sure it appears in the correct subdirectory of the 
classpath.
import com.google.enterprise.apis.client.GsaEntry;
                                         ^
1 error

Original issue reported on code.google.com by manupr...@gmail.com on 26 Oct 2009 at 11:56