Program: 51992
Project: 51992
Buggy source:
/** 
 * Delete policy.
 * @param bitstreamId Id of the DSpace bitstream whose policy will be deleted.
 * @param policyId Id of the policy to delete.
 * @param headers If you want to access the item as the user logged into the context. The header "rest-dspace-token" with the token passed from the login method must be set.
 * @return It returns Ok, if was all ok. Otherwise status code 500.
 */
@DELETE @Path("String_Node_Str") public javax.ws.rs.core.Response deleteBitstreamPolicy(@PathParam("String_Node_Str") String bitstreamId,@PathParam("String_Node_Str") Integer policyId,@QueryParam("String_Node_Str") String user_ip,@QueryParam("String_Node_Str") String user_agent,@QueryParam("String_Node_Str") String xforwardedfor,@Context HttpHeaders headers,@Context HttpServletRequest request) throws WebApplicationException {
  log.info("String_Node_Str" + policyId + "String_Node_Str"+ bitstreamId+ "String_Node_Str");
  org.dspace.core.Context context=null;
  try {
    context=createContext(getUser(headers));
    org.dspace.content.Bitstream dspaceBitstream=findBitstream(context,bitstreamId,org.dspace.core.Constants.WRITE);
    writeStats(dspaceBitstream,UsageEvent.Action.UPDATE,user_ip,user_agent,xforwardedfor,headers,request,context);
    org.dspace.authorize.ResourcePolicy resourcePolicy=resourcePolicyService.find(context,policyId);
    if (resourcePolicy.getdSpaceObject().getID() == dspaceBitstream.getID() && authorizeService.authorizeActionBoolean(context,dspaceBitstream,org.dspace.core.Constants.REMOVE)) {
      try {
        resourcePolicyService.delete(context,resourcePolicy);
      }
 catch (      AuthorizeException e) {
        processException("String_Node_Str" + policyId + "String_Node_Str"+ bitstreamId+ "String_Node_Str"+ e,context);
      }
      log.trace("String_Node_Str" + bitstreamId + "String_Node_Str");
    }
  }
 catch (  SQLException e) {
    processException("String_Node_Str" + policyId + "String_Node_Str"+ bitstreamId+ "String_Node_Str"+ e,context);
  }
catch (  ContextException e) {
    processException("String_Node_Str" + policyId + "String_Node_Str"+ bitstreamId+ "String_Node_Str"+ e.getMessage(),context);
  }
 finally {
    processFinally(context);
  }
  return Response.status(Status.OK).build();
}

Fixed version (ground truth):
/** 
 * Delete policy.
 * @param bitstreamId Id of the DSpace bitstream whose policy will be deleted.
 * @param policyId Id of the policy to delete.
 * @param headers If you want to access the item as the user logged into the context. The header "rest-dspace-token" with the token passed from the login method must be set.
 * @return It returns Ok, if was all ok. Otherwise status code 500.
 */
@DELETE @Path("String_Node_Str") public javax.ws.rs.core.Response deleteBitstreamPolicy(@PathParam("String_Node_Str") String bitstreamId,@PathParam("String_Node_Str") Integer policyId,@QueryParam("String_Node_Str") String user_ip,@QueryParam("String_Node_Str") String user_agent,@QueryParam("String_Node_Str") String xforwardedfor,@Context HttpHeaders headers,@Context HttpServletRequest request) throws WebApplicationException {
  log.info("String_Node_Str" + policyId + "String_Node_Str"+ bitstreamId+ "String_Node_Str");
  org.dspace.core.Context context=null;
  try {
    context=createContext(getUser(headers));
    org.dspace.content.Bitstream dspaceBitstream=findBitstream(context,bitstreamId,org.dspace.core.Constants.WRITE);
    writeStats(dspaceBitstream,UsageEvent.Action.UPDATE,user_ip,user_agent,xforwardedfor,headers,request,context);
    org.dspace.authorize.ResourcePolicy resourcePolicy=resourcePolicyService.find(context,policyId);
    if (resourcePolicy.getdSpaceObject().getID().equals(dspaceBitstream.getID()) && authorizeService.authorizeActionBoolean(context,dspaceBitstream,org.dspace.core.Constants.REMOVE)) {
      try {
        resourcePolicyService.delete(context,resourcePolicy);
      }
 catch (      AuthorizeException e) {
        processException("String_Node_Str" + policyId + "String_Node_Str"+ bitstreamId+ "String_Node_Str"+ e,context);
      }
      log.trace("String_Node_Str" + bitstreamId + "String_Node_Str");
    }
  }
 catch (  SQLException e) {
    processException("String_Node_Str" + policyId + "String_Node_Str"+ bitstreamId+ "String_Node_Str"+ e,context);
  }
catch (  ContextException e) {
    processException("String_Node_Str" + policyId + "String_Node_Str"+ bitstreamId+ "String_Node_Str"+ e.getMessage(),context);
  }
 finally {
    processFinally(context);
  }
  return Response.status(Status.OK).build();
}