Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!news.albasani.net!eternal-september.org!feeder.eternal-september.org!.POSTED!not-for-mail From: Joshua Cranmer Newsgroups: comp.lang.java.programmer Subject: Re: How to print out the currently used JAR file path to verify it is using right JAR? Date: Fri, 07 Oct 2011 10:18:02 -0500 Organization: A noiseless patient Spider Lines: 18 Message-ID: References: <4d7daeb4-7da7-47c0-a4cf-d3c5d1be2ef0@gd10g2000vbb.googlegroups.com> <13afa738-1198-4569-84be-9fc6627c52d6@t16g2000yqm.googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Fri, 7 Oct 2011 15:18:05 +0000 (UTC) Injection-Info: mx04.eternal-september.org; posting-host="WpcHJSul77m+zlbR9GVqkA"; logging-data="902"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19xf7m09IlEF+3z8LPfkjD/+k19hIPBAjo=" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 In-Reply-To: <13afa738-1198-4569-84be-9fc6627c52d6@t16g2000yqm.googlegroups.com> Cancel-Lock: sha1:YaSYflAooV5ZFs6SIhZQ0W55H2g= Xref: x330-a1.tempe.blueboxinc.net comp.lang.java.programmer:8627 On 10/7/2011 9:25 AM, www wrote: > Just to add more details about my question: > > In my code, I am using class Abc, which is from 3rd party JAR > file(MyJAR.jar). I hope to print out Abc's class path to see it is > from a/b/MyJAR.old.jar or from c/d/MyJAR.new.jar > > I understand the correct way is to check the classpath and which JAR > is front is the one to be used. However, we run into some strange > things here and that method didn't solve the problem. One way, which I don't know if it would work, would be: System.out.println(Abc.class.getClassLoader().findResource( "com/foo/package/Abc.class").toString()); -- Beware of bugs in the above code; I have only proved it correct, not tried it. -- Donald E. Knuth