Program: 52047
Project: 52047
Buggy source:
/** 
 * Delete collection.
 * @param collectionId Id of collection which will be deleted.
 * @param headers If you want to access to collection under logged user into context. In headers must be set header "rest-dspace-token" with passed token from login method.
 * @return Return response code OK(200) if was everything all right.Otherwise return NOT_FOUND(404) if was id of community or collection incorrect. Or (UNAUTHORIZED)401 if was problem with permission to community or collection.
 * @throws WebApplicationException It is throw when was problem with creating context or problem with database reading or writing. Or problem with deleting collection caused by IOException or authorization.
 */
@DELETE @Path("String_Node_Str") @Consumes({MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML}) public Response deleteCollection(@PathParam("String_Node_Str") Integer collectionId,@QueryParam("String_Node_Str") String user_ip,@QueryParam("String_Node_Str") String user_agent,@QueryParam("String_Node_Str") String xforwarderfor,@Context HttpHeaders headers,@Context HttpServletRequest request) throws WebApplicationException {
  log.info("String_Node_Str" + collectionId + "String_Node_Str");
  org.dspace.core.Context context=null;
  try {
    context=createContext(getUser(headers));
    org.dspace.content.Collection dspaceCollection=findCollection(context,collectionId,org.dspace.core.Constants.DELETE);
    writeStats(dspaceCollection,UsageEvent.Action.REMOVE,user_ip,user_agent,xforwarderfor,headers,request);
    org.dspace.content.Community community=(org.dspace.content.Community)dspaceCollection.getParentObject();
    community.removeCollection(dspaceCollection);
    context.complete();
  }
 catch (  ContextException e) {
    processException("String_Node_Str" + collectionId + "String_Node_Str"+ e.getMessage(),context);
  }
catch (  SQLException e) {
    processException("String_Node_Str" + collectionId + "String_Node_Str"+ e,context);
  }
catch (  AuthorizeException e) {
    processException("String_Node_Str" + collectionId + "String_Node_Str"+ e,context);
  }
catch (  IOException e) {
    processException("String_Node_Str" + collectionId + "String_Node_Str"+ e,context);
  }
 finally {
    processFinally(context);
  }
  log.info("String_Node_Str" + collectionId + "String_Node_Str");
  return Response.ok().build();
}

Fixed version (ground truth):
/** 
 * Delete collection.
 * @param collectionId Id of collection which will be deleted.
 * @param headers If you want to access to collection under logged user into context. In headers must be set header "rest-dspace-token" with passed token from login method.
 * @return Return response code OK(200) if was everything all right.Otherwise return NOT_FOUND(404) if was id of community or collection incorrect. Or (UNAUTHORIZED)401 if was problem with permission to community or collection.
 * @throws WebApplicationException It is throw when was problem with creating context or problem with database reading or writing. Or problem with deleting collection caused by IOException or authorization.
 */
@DELETE @Path("String_Node_Str") @Consumes({MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML}) public Response deleteCollection(@PathParam("String_Node_Str") Integer collectionId,@QueryParam("String_Node_Str") String user_ip,@QueryParam("String_Node_Str") String user_agent,@QueryParam("String_Node_Str") String xforwarderfor,@Context HttpHeaders headers,@Context HttpServletRequest request) throws WebApplicationException {
  log.info("String_Node_Str" + collectionId + "String_Node_Str");
  org.dspace.core.Context context=null;
  try {
    context=createContext(getUser(headers));
    org.dspace.content.Collection dspaceCollection=findCollection(context,collectionId,org.dspace.core.Constants.DELETE);
    writeStats(dspaceCollection,UsageEvent.Action.REMOVE,user_ip,user_agent,xforwarderfor,headers,request,context);
    org.dspace.content.Community community=(org.dspace.content.Community)dspaceCollection.getParentObject();
    community.removeCollection(dspaceCollection);
    context.complete();
  }
 catch (  ContextException e) {
    processException("String_Node_Str" + collectionId + "String_Node_Str"+ e.getMessage(),context);
  }
catch (  SQLException e) {
    processException("String_Node_Str" + collectionId + "String_Node_Str"+ e,context);
  }
catch (  AuthorizeException e) {
    processException("String_Node_Str" + collectionId + "String_Node_Str"+ e,context);
  }
catch (  IOException e) {
    processException("String_Node_Str" + collectionId + "String_Node_Str"+ e,context);
  }
 finally {
    processFinally(context);
  }
  log.info("String_Node_Str" + collectionId + "String_Node_Str");
  return Response.ok().build();
}