java - Starting a WebAppContext in isolation -



java - Starting a WebAppContext in isolation -

i trying start jetty server web context. web.xml passing contains custom class (for different reasons) on classpath of code executing code below. expect jetty not able find class specified in web.xml, does.

how build new server webappcontext not load classes current context?

the code below in scala, should give thought have tried. if reply java fine.

// reference root class loader, 1 should not know // of custom classes val rootloader = { // recursive method find loader without parent def parent(loader:classloader):classloader = { val p = loader.getparent if (p == null) loader else parent(p) } parent(getclass.getclassloader) } // check if custom classfile available rootloader val classname = classof[my.custom.servlet.classfile].getname val classavailable = seek { rootloader.loadclass(classname) true } grab { case e:classnotfoundexception => false } // if i'm not insane no error thrown if (classavailable) sys.error("class should not available") // create webappcontext using empty webappclassloader // based on rootloader val context = new webappcontext() context.setparentloaderpriority(false) //context.setclassloader(new webappclassloader(rootloader, context)) context.setclassloader(rootloader) context.setcontextpath("/") context.setdescriptor(webxmlfile) context.setresourcebase(resourcebase) // create start server context val server = new server(port) server.sethandler(context) server.start()

i expected context not find class in question.

ok eecolor, i've had dig around in code , think have 2 issues i've opened these bugs:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=447462 https://bugs.eclipse.org/bugs/show_bug.cgi?id=447461

now, bug #1 reason why if set isolated classloader webapp magically able still load class. bug #2 shouldn't impact you, unless start play around joakim's suggestion of setting scheme , server classes, , you're ok, because class exists in both container classloader parent hierarchy , webapp classloader , bug occurs when scheme class missing container classloader nowadays in webapp classloader.

so, can seek using joakim's suggestion of adding class scheme class , should work. alternatively, should able set webappcontext.setparentloaderpriority(true) , seek container classloader hierarchy first. although aware setparentpriority(true) apply classloading webapp, whilst joakim's suggestion limits different loading behaviour class in question.

jan

java scala jetty embedded-jetty

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