Re: static synchronized method

From:
lewbloch <lewbloch@gmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Fri, 29 Jul 2011 09:28:35 -0700 (PDT)
Message-ID:
<870eb4bc-fc28-45d0-a4b3-8fa4d70933be@f39g2000prb.googlegroups.com>
On Jul 27, 7:04 pm, Alice <quaxx1...@example.com> wrote:

On 27/07/2011 5:06 PM, lewbloch wrote:

Henderson wrote:

The main concern, instead, is invariant violation when the design
expects a singleton of some sort: a single global registry of some sor=

t,

a single global interning cache, a single INSTANCE reference to a sing=

le

singleton instance such as what java.awt.Toolkit.getDefaultToolkit()
returns, etc.; if there are suddenly two of a thing like that when the
design calls for exactly one, then problems can ensue, but problems th=

at

have nothing to do with concurrency and data races.


Classloaders define a sort of namespace wherein the "same" class from
two different classloaders is actually two different classes. Like s=

o

much in Java, this is a very powerful technique that can mess you up a
lot if you're careless or don't fully grasp the consequences.


Classic pontification.

Classloader magic is one of those "here there be dragons" regions of
Java. I've dabbled in it, but I am Dukas' Sorcerers Apprentice when
it comes to their use.


Classic pontification.


Troll. Plonk.

--
Lew

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