java - How to get all jar from classpath of Tomcat application? -

i need write new module, able application's jar in runtime.

i try getting inforimation classloader.getsystemclassloader(), catalina.bat in tomcat override variable of classpath.

so, next idea recursively iterate through target folders , lib folder. in module wrote :

public class mainservlet extends httpservlet {      @override     protected void service(httpservletrequest req, httpservletresponse resp)             throws servletexception, ioexception {         file currentdir = new file(getservletcontext().getrealpath("/")); // current directory         system.out.println("cur dir: " + currentdir);         displaydirectorycontents(currentdir);     } } 

i got result:

cur dir: c:\java\apache-tomcat-7.0.56\webapps\jar

this path war, added application. need path application itself.

so, have idea?

java ee applications have customized classloader hierarchy.

public class mainservlet extends httpservlet {     @override     protected void service(httpservletrequest req, httpservletresponse resp) {         classloader effectiveclassloader = getclass().getclassloader();         url[] classpath = ((urlclassloader) effectiveclassloader).geturls();         ...     } }