code: public static <R, C, V> Table<R, C, V> synchronizedTable(Table<R, C, V> table) {
      return Synchronized.table(table, null);
    }
docs: Returns a synchronized (thread-safe) table backed by the specified table. In order to guarantee
  serial access, it is critical that <b>all</b> access to the backing table is accomplished
  through the returned table.
  
  <p>It is imperative that the user manually synchronize on the returned table when accessing any
  of its collection views:
  
  <pre>{@code
  Table<R, C, V> table = Tables.synchronizedTable(HashBasedTable.<R, C, V>create());
  ...
  Map<C, V> row = table.row(rowKey);  // Needn't be in synchronized block
  ...
  synchronized (table) {  // Synchronizing on table, not row!
  Iterator<Entry<C, V>> i = row.entrySet().iterator(); // Must be in synchronized block
  while (i.hasNext()) {
  foo(i.next());
  }
  }
  }</pre>
  
  <p>Failure to follow this advice may result in non-deterministic behavior.
  
  <p>The returned table will be serializable if the specified table is serializable.
  
  @param table the table to be wrapped in a synchronized view
  @return a synchronized view of the specified table
  @since 22.0