Hi,
I want to load *.hbm.xml file in memory to check for the file programmatically.

I got hibernate-mapping-3.0.xsd and tried to generate code for objects by JAXB using command
xjc hibernate-mapping-3.0.xsd

I am getting the following error.
parsing a schema...
[ERROR] Property "Type" is already defined.
line 791 of file:/F:/Java/jaxb/hibernate-mapping-3.0.xsd

[ERROR] The following location is relevant to the above error
line 800 of file:/F:/Java/jaxb/hibernate-mapping-3.0.xsd
...
...
...
...
Failed to parse a schema.

Could anybody help me out.

Here is a good discussion of the problem you are having. This may shed some light on the topic:

https://jaxb.dev.java.net/guide/Dealing_with_errors.html