public static void unescapeJava(final Reader reader, final Writer writer)
            throws IOException {

        if (writer == null) {
            throw new IllegalArgumentException("Argument 'writer' cannot be null");
        }

        JavaEscapeUtil.unescape(reader, writer);

    }
public static void unescapeJava ( final Reader reader , final Writer writer ) throws IOException { if ( writer == null ) { throw new IllegalArgumentException ( "Argument 'writer' cannot be null" ) ; } JavaEscapeUtil . unescape ( reader , writer ) ; }
<p>
Perform a Java <strong>unescape</strong> operation on a <tt>Reader</tt> input, writing results
to a <tt>Writer</tt>.
</p>
<p>
No additional configuration arguments are required. Unescape operations
will always perform <em>complete</em> Java unescape of SECs, u-based and octal escapes.
</p>
<p>
This method is <strong>thread-safe</strong>.
</p>

@param reader the <tt>Reader</tt> reading the text to be unescaped.
@param writer the <tt>java.io.Writer</tt> to which the unescaped result will be written. Nothing will
be written at all to this writer if input is <tt>null</tt>.
@throws IOException if an input/output exception occurs

@since 1.1.2