Description of problem: Trying to perform basic operation with API, like adding a new DC or add a Network to DC or Host fails with Error 500 Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Try to create a new DC with API 2. Try to create it with SDK 3. Actual results: Error 500 on basic API action http://pastebin.test.redhat.com/219780 when creating it with SDK Expected results: Action should succeed Additional info: 2014-07-06 15:14:50,173 - MainThread - datacenters - ERROR - https://10.35.160.222/api/datacenters 2014-07-06 15:14:50,174 - MainThread - datacenters - ERROR - <data_center> <name>test_dc_35</name> <storage_type>iscsi</storage_type> <version major="3" minor="5"/> </data_center> 2014-07-06 15:14:50,429 - MainThread - datacenters - ERROR - {'status': 500, 'body': u'<html><head><title>JBoss Web/7.0.13.Final - Error report</title><style><!--H1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} H2 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} H3 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} BODY {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} B {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} P {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A {color : black;}A.name {color : black;}HR {color : #525D76;}--></style> </head><body><h1>HTTP Status 500 - Bad arguments passed to public abstract javax.ws.rs.core.Response org.ovirt.engine.api.resource.DataCentersResource.add(org.ovirt.engine.api.model.DataCenter) ( org.ovirt.engine.api.model.DataCenter org.ovirt.engine.api.model.DataCenter@4677b6f7 )</h1><HR size="1" noshade="noshade"><p><b>type</b> Status report</p><p><b>message</b> <u>Bad arguments passed to public abstract javax.ws.rs.core.Response org.ovirt.engine.api.resource.DataCentersResource.add(org.ovirt.engine.api.model.DataCenter) ( org.ovirt.engine.api.model.DataCenter org.ovirt.engine.api.model.DataCenter@4677b6f7 )</u></p><p><b>description</b> <u>The server encountered an internal error (Bad arguments passed to public abstract javax.ws.rs.core.Response org.ovirt.engine.api.resource.DataCentersResource.add(org.ovirt.engine.api.model.DataCenter) ( org.ovirt.engine.api.model.DataCenter org.ovirt.engine.api.model.DataCenter@4677b6f7 )) that prevented it from fulfilling this request.</u></p><HR size="1" noshade="noshade"><h3>JBoss Web/7.0.13.Final</h3></body></html>', 'reason': 'Internal Server Error'} 2014-07-06 15:14:50,665 - MainThread - datacenters - ERROR - Response code is not valid, expected is: [200, 201, 202], actual is: 500
*** This bug has been marked as a duplicate of bug 1113485 ***