assertEquals( 0, attr1.size() );
attr1.add( ( String ) null );
assertEquals( 1, attr1.size() );
assertTrue( attr1.isHumanReadable() );
attr1.clear();
assertTrue( attr1.isHumanReadable() );
assertEquals( 0, attr1.size() );
Attribute attr2 = new DefaultAttribute( "test" );
attr2.add( BYTES1, BYTES2 );