@Override
	public boolean accept(Entry<Object, Object> entry)
	{
		
		return keys != null && keys.contains(entry.getKey());
	}
@Override
	public boolean accept(Entry<Object, Object> entry)
	{
		
		return keys != null && keys.contains(entry.getKey());
	}
@ Override public boolean accept ( Entry < Object , Object > entry ) { return keys != null && keys . contains ( entry . getKey ( ) ) ; }
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