Program: 52049
Project: 52049
Buggy source:
/** 
 * Return array of all collections in DSpace. You can add more properties through expand parameter.
 * @param expand String in which is what you want to add to returned instance of collection. Options are: "all", "parentCommunityList", "parentCommunity", "items", "license" and "logo". If you want to use multiple options, it must be separated by commas.
 * @param limit Limit value for items in list in collection. Default value is 100.
 * @param offset Offset of start index in list of items of collection. Default value is 0.
 * @param headers If you want to access to collections under logged user into context. In headers must be set header "rest-dspace-token" with passed token from login method.
 * @return Return array of collection, on which has logged user permissionto view.
 * @throws WebApplicationException It is thrown when was problem with database reading (SQLException) or problem with creating context(ContextException).
 */
@GET @Produces({MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML}) public org.dspace.rest.common.Collection[] getCollections(@QueryParam("String_Node_Str") String expand,@QueryParam("String_Node_Str") @DefaultValue("String_Node_Str") Integer limit,@QueryParam("String_Node_Str") @DefaultValue("String_Node_Str") Integer offset,@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" + offset + "String_Node_Str"+ limit+ "String_Node_Str");
  org.dspace.core.Context context=null;
  List<Collection> collections=new ArrayList<Collection>();
  try {
    context=createContext(getUser(headers));
    if (!((limit != null) && (limit >= 0) && (offset != null)&& (offset >= 0))) {
      log.warn("String_Node_Str");
      limit=100;
      offset=0;
    }
    org.dspace.content.Collection[] dspaceCollections=org.dspace.content.Collection.findAll(context,limit,offset);
    for (    org.dspace.content.Collection dspaceCollection : dspaceCollections) {
      if (AuthorizeManager.authorizeActionBoolean(context,dspaceCollection,org.dspace.core.Constants.READ)) {
        Collection collection=new org.dspace.rest.common.Collection(dspaceCollection,null,context,limit,offset);
        collections.add(collection);
        writeStats(dspaceCollection,UsageEvent.Action.VIEW,user_ip,user_agent,xforwarderfor,headers,request);
      }
    }
    context.complete();
  }
 catch (  SQLException e) {
    processException("String_Node_Str" + e,context);
  }
catch (  ContextException e) {
    processException("String_Node_Str" + e.getMessage(),context);
  }
 finally {
    processFinally(context);
  }
  log.trace("String_Node_Str");
  return collections.toArray(new org.dspace.rest.common.Collection[0]);
}

Fixed version (ground truth):
/** 
 * Return array of all collections in DSpace. You can add more properties through expand parameter.
 * @param expand String in which is what you want to add to returned instance of collection. Options are: "all", "parentCommunityList", "parentCommunity", "items", "license" and "logo". If you want to use multiple options, it must be separated by commas.
 * @param limit Limit value for items in list in collection. Default value is 100.
 * @param offset Offset of start index in list of items of collection. Default value is 0.
 * @param headers If you want to access to collections under logged user into context. In headers must be set header "rest-dspace-token" with passed token from login method.
 * @return Return array of collection, on which has logged user permissionto view.
 * @throws WebApplicationException It is thrown when was problem with database reading (SQLException) or problem with creating context(ContextException).
 */
@GET @Produces({MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML}) public org.dspace.rest.common.Collection[] getCollections(@QueryParam("String_Node_Str") String expand,@QueryParam("String_Node_Str") @DefaultValue("String_Node_Str") Integer limit,@QueryParam("String_Node_Str") @DefaultValue("String_Node_Str") Integer offset,@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" + offset + "String_Node_Str"+ limit+ "String_Node_Str");
  org.dspace.core.Context context=null;
  List<Collection> collections=new ArrayList<Collection>();
  try {
    context=createContext(getUser(headers));
    if (!((limit != null) && (limit >= 0) && (offset != null)&& (offset >= 0))) {
      log.warn("String_Node_Str");
      limit=100;
      offset=0;
    }
    org.dspace.content.Collection[] dspaceCollections=org.dspace.content.Collection.findAll(context,limit,offset);
    for (    org.dspace.content.Collection dspaceCollection : dspaceCollections) {
      if (AuthorizeManager.authorizeActionBoolean(context,dspaceCollection,org.dspace.core.Constants.READ)) {
        Collection collection=new org.dspace.rest.common.Collection(dspaceCollection,null,context,limit,offset);
        collections.add(collection);
        writeStats(dspaceCollection,UsageEvent.Action.VIEW,user_ip,user_agent,xforwarderfor,headers,request,context);
      }
    }
    context.complete();
  }
 catch (  SQLException e) {
    processException("String_Node_Str" + e,context);
  }
catch (  ContextException e) {
    processException("String_Node_Str" + e.getMessage(),context);
  }
 finally {
    processFinally(context);
  }
  log.trace("String_Node_Str");
  return collections.toArray(new org.dspace.rest.common.Collection[0]);
}