pr.mu.Lock()
	defer pr.mu.Unlock()
	if pr.rc == nil {
		return 0, io.EOF
	}
	return pr.rc.Read(p)
}

func (pr *syncReadCloser) Close() error {
	pr.mu.Lock()
	defer pr.mu.Unlock()
	if pr.rc != nil {
		err := pr.rc.Close()
		pr.rc = nil
		return err
	}
	return nil

                    return new String[length];
                  }

                  @Override
                  public Integer[] createValueArray(int length) {
                    return new Integer[length];
                  }

                  @Override
                  public SampleElements<Entry<String, Integer>> samples() {
                    return new SampleElements<>(

            policy.merge(repository.getSnapshots());
            return policy;
        } else if ((nature & RepositoryMetadata.SNAPSHOT) != 0) {
            return repository.getSnapshots();
        } else {
            return repository.getReleases();
        }
    }

		IdleMode:       0, // Default is on
	}

	if err = config.CheckValidKeys(config.ScannerSubSys, kvs, DefaultKVS); err != nil {
		return cfg, err
	}

	excessVersions, err := strconv.ParseInt(env.Get(EnvExcessVersions, kvs.GetWithDefault(ExcessVersions, DefaultKVS)), 10, 64)
	if err != nil {
		return cfg, err
	}
	cfg.ExcessVersions = excessVersions

        return null;
    }

    @Override
    public int xgetNestLevel() {
        return 0;
    }

    @Override
    public int xgetNextNestLevel() {
        return 0;
    }

    @Override
    public boolean isBaseQuery() {
        return false;
    }

    @Override
    public String xgetForeignPropertyName() {
        return null;
    }

    @Override

            }
          };
        }
      }

      @Override
      public int size() {
        return predecessorCount;
      }

      @Override
      public boolean contains(@Nullable Object obj) {
        return isPredecessor(adjacentNodeValues.get(obj));
      }
    };
  }

  @Override
  public Set<N> successors() {
    return new AbstractSet<N>() {

    public String getTableDbName() {
        return _tableDbName;
    }

    @Override
    public String getTableDispName() {
        return _tableDispName;
    }

    @Override
    public String getTablePropertyName() {
        return _tablePropertyName;
    }

    @Override
    public TableSqlName getTableSqlName() {
        return null;
    }

        public String name() {
            return name;
        }

        @Override
        public List<Plugin> plugins() {
            return plugins;
        }

        @Override
        public Collection<Lifecycle.Link> links() {
            return links;
        }

        @Override
        public List<Lifecycle.Phase> phases() {
            return phases;
        }

        @Override

    public String getTableDbName() {
        return _tableDbName;
    }

    @Override
    public String getTableDispName() {
        return _tableDispName;
    }

    @Override
    public String getTablePropertyName() {
        return _tablePropertyName;
    }

    @Override
    public TableSqlName getTableSqlName() {
        return null;
    }

    public String getTableDbName() {
        return _tableDbName;
    }

    @Override
    public String getTableDispName() {
        return _tableDispName;
    }

    @Override
    public String getTablePropertyName() {
        return _tablePropertyName;
    }

    @Override
    public TableSqlName getTableSqlName() {
        return null;
    }