flow/src/java/org/apache/struts/flow/core/source/SourceUtil.java [198:240]:
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        for( int i = 0; i < s.length(); i++ )
        {
            int c = s.charAt( i );
            if( charactersDontNeedingEncoding.get( c ) )
            {
                out.append( (char)c );
            }
            else
            {
                try
                {
                    writer.write( c );
                    writer.flush();
                }
                catch( IOException e )
                {
                    buf.reset();
                    continue;
                }
                byte[] ba = buf.toByteArray();
                for( int j = 0; j < ba.length; j++ )
                {
                    out.append( '%' );
                    char ch = Character.forDigit( ( ba[ j ] >> 4 ) & 0xF, 16 );
                    // converting to use uppercase letter as part of
                    // the hex value if ch is a letter.
                    if( Character.isLetter( ch ) )
                    {
                        ch -= characterCaseDiff;
                    }
                    out.append( ch );
                    ch = Character.forDigit( ba[ j ] & 0xF, 16 );
                    if( Character.isLetter( ch ) )
                    {
                        ch -= characterCaseDiff;
                    }
                    out.append( ch );
                }
                buf.reset();
            }
        }

        return out.toString();
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flow/src/java/org/apache/struts/flow/core/source/SourceUtil.java [258:300]:
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        for( int i = 0; i < s.length(); i++ )
        {
            int c = s.charAt( i );
            if( charactersDontNeedingEncoding.get( c ) )
            {
                out.append( (char)c );
            }
            else
            {
                try
                {
                    writer.write( c );
                    writer.flush();
                }
                catch( IOException e )
                {
                    buf.reset();
                    continue;
                }
                byte[] ba = buf.toByteArray();
                for( int j = 0; j < ba.length; j++ )
                {
                    out.append( '%' );
                    char ch = Character.forDigit( ( ba[ j ] >> 4 ) & 0xF, 16 );
                    // converting to use uppercase letter as part of
                    // the hex value if ch is a letter.
                    if( Character.isLetter( ch ) )
                    {
                        ch -= characterCaseDiff;
                    }
                    out.append( ch );
                    ch = Character.forDigit( ba[ j ] & 0xF, 16 );
                    if( Character.isLetter( ch ) )
                    {
                        ch -= characterCaseDiff;
                    }
                    out.append( ch );
                }
                buf.reset();
            }
        }

        return out.toString();
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