When doing a simple odata query on a view which contains a column with a data type of byte the following exception is thrown:

10:37:46,642 WARN [org.teiid.ODATA] (http-localhost/127.0.0.1:8080-1) TEIID16012 Could not produce a sucessful OData response. Returning status ServerErrorException with message java.lang.Byte cannot be cast to org.odata4j.core.UnsignedByte.: org.odata4j.exceptions.ServerErrorException: java.lang.Byte cannot be cast to org.odata4j.core.UnsignedByte
at org.teiid.odata.LocalClient.executeSQL(LocalClient.java:238) [classes:]
at org.teiid.odata.TeiidProducer.getNavProperty(TeiidProducer.java:90) [classes:]
at org.teiid.odata.TeiidProducer.getEntities(TeiidProducer.java:79) [classes:]
at org.odata4j.producer.resources.EntitiesRequestResource.getEntitiesImpl(EntitiesRequestResource.java:371) [odata4j-core-0.8.0-SNAPSHOT-redhat.jar:]
at org.odata4j.producer.resources.EntitiesRequestResource.getEntities(EntitiesRequestResource.java:266) [odata4j-core-0.8.0-SNAPSHOT-redhat.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_45]
at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_45]
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:167) [resteasy-jaxrs-2.3.6.Final-redhat-1.jar:2.3.6.Final-redhat-1]
at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:269) [resteasy-jaxrs-2.3.6.Final-redhat-1.jar:2.3.6.Final-redhat-1]
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:227) [resteasy-jaxrs-2.3.6.Final-redhat-1.jar:2.3.6.Final-redhat-1]
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:216) [resteasy-jaxrs-2.3.6.Final-redhat-1.jar:2.3.6.Final-redhat-1]
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:542) [resteasy-jaxrs-2.3.6.Final-redhat-1.jar:2.3.6.Final-redhat-1]
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:524) [resteasy-jaxrs-2.3.6.Final-redhat-1.jar:2.3.6.Final-redhat-1]
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:126) [resteasy-jaxrs-2.3.6.Final-redhat-1.jar:2.3.6.Final-redhat-1]
at org.teiid.odata.ODataServletContainerDispatcher.service(ODataServletContainerDispatcher.java:97) [classes:]
at org.teiid.odata.ODataServlet.service(ODataServlet.java:61) [classes:]
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.6.Final-redhat-1.jar:2.3.6.Final-redhat-1]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-1.jar:1.0.2.Final-redhat-1]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.jboss.modcluster.container.jbossweb.JBossWebContext$RequestListenerValve.event(JBossWebContext.java:91)
at org.jboss.modcluster.container.jbossweb.JBossWebContext$RequestListenerValve.invoke(JBossWebContext.java:72)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:499) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169) [jboss-as-web-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:145) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:336) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:920) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_45]
Caused by: java.lang.ClassCastException: java.lang.Byte cannot be cast to org.odata4j.core.UnsignedByte
at org.odata4j.core.OSimpleObjects.create(OSimpleObjects.java:47) [odata4j-core-0.8.0-SNAPSHOT-redhat.jar:]
at org.odata4j.core.OProperties.simple(OProperties.java:54) [odata4j-core-0.8.0-SNAPSHOT-redhat.jar:]
at org.teiid.odata.EntityList.buildPropery(EntityList.java:105) [classes:]
at org.teiid.odata.EntityList.getEntity(EntityList.java:114) [classes:]
at org.teiid.odata.EntityList.<init>(EntityList.java:85) [classes:]
at org.teiid.odata.LocalClient.executeSQL(LocalClient.java:236) [classes:]
... 35 more

This is probably due to the fact that in class org.teiid.translator.odata.ODataTypeManager the following is defined:

teiidkeyed.put(DataTypeManager.DefaultDataTypes.BYTE, EdmSimpleType.BYTE);

instead of

teiidkeyed.put(DataTypeManager.DefaultDataTypes.BYTE, EdmSimpleType.SBYTE);

The EdmSimpleType.BYTE tries to cast to the build in org.odata4j.core.UnsignedByte type which is not possible for a java.lang.Byte.