public static void close(final Closeable obj) {
    if (obj != null) {
      try {
        obj.close();
      } catch (IOException ignore) {
      }
    }
  }
Invokes the close method on any class instance implementing the Closeable interface, such as
InputStreams and OutputStreams. Note, this method silently ignores the possible IOException
resulting from the close invocation.
<p>

@param obj an Object implementing the Closeable interface who's close method will be invoked.
geode-core/src/main/java/org/apache/geode/internal/util/IOUtils.java