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From: markspace <markspace@nospam.nospam>
Newsgroups: comp.lang.java.programmer
Subject: Re: StringBuilder.append and CharSequence
Date: Wed, 25 Sep 2013 13:02:10 -0700
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On 9/25/2013 7:19 AM, Andreas Leitgeb wrote:
> Is it safe to use "stringBuilder.append(this);"

It wasn't clear to me either from reading the Java docs that the above 
was safe, so I'd avoid it.

> in a CharSequence
> implementation's .toString(), or could this lead to a recursive
> loop, if some version of a Java class library implements the
> append() for CharSequence by using it's toString() ?

That paragraph wasn't clear to me at all.  I was going to suggest 
toString() as the safe approach.

   stringBuilder.append( this.toString() );

This seems bomb proof to me, as the string is constructed before the 
method call.  Did I miss something?