wro4j-core/src/main/java/ro/isdc/wro/util/WroUtil.java
public static void safeCopy(final Reader reader, final Writer writer)
      throws IOException {
    try {
      IOUtils.copy(reader, writer);
    } finally {
      IOUtils.closeQuietly(reader);
      IOUtils.closeQuietly(writer);
    }
  }
public static void safeCopy(final Reader reader, final Writer writer)
      throws IOException {
    try {
      IOUtils.copy(reader, writer);
    } finally {
      IOUtils.closeQuietly(reader);
      IOUtils.closeQuietly(writer);
    }
  }
Copy and close the reader and writer streams.

@param reader
The source stream.
@param writer
The destination stream.
@throws IOException
If content cannot be copy.