unable to load jar file to database

Hi,

I have tried to load the external jar file to the database using the following options but it is showing below error please check and help us ASAP.

BEGIN

DBMS_JAVA.grant_permission('APPS','oracle.aurora.server.tools.loadjava.LoadJavaMain','','read,write,execute');

commit;

end;

execute dbms_java.loadjava('D:\xx\xx_path\jars\core-1.7.jar');

Error starting at line : 12 in command -

execute dbms_java.loadjava('D:\Krishna\QR Code Generator\jars\core-1.7.jar')

Error report -

ORA-29532: Java call terminated by uncaught Java exception: oracle.aurora.server.tools.loadjava.ToolsError:

Error during loadjava: Failures occurred during processing.

Check trace file for details