[Advanced-java] Workaround for Bug 4724129: StringBuffer.toString() not clear

[Nikolaos Giannopoulos]

We have been seeing java.lang.OutOfMemoryError's when using Tomcat 4.1.12
with JRE 1.4.1_01 for some time now.

I found bug 4724129 which seems to have been introduced in 1.4.1_XX and
seems to be the only culprit (BTW we are not using JSPs - which is affected
by another bug).

The workaround seems to be not to re-use StringBuffer which is easy enough
to understand but what I don't seem to get is the stated workaround (if I
choose to re-use StringBuffers).  The workaround reads:

"Don't reuse StringBuffers. If you do reuse them, check their capacity and
make sure that you aren't making tiny Strings from huge StringBuffers"

The work-around doesn't seem very clear....

Can anyone translate this to code?

Any help is appreciated.  Thanks.

--Nikolaos