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Where can I find the source code for isUserInRole? All I find are only interfaces or calling to super.isUserInRole
You can find it in the concrete implementation. As you see, Java EE is an abstract API, it exist of almost only interfaces. It has the benefit that you can deploy your webapplication on whatever server you want.
The concrete implementations are called application servers and/or servlet containers, like Sun Glassfish, IBM WebSphere, Oracle Weblogic, Apache Tomcat, Eclipse Jetty, etcetera. You need to check if your server implementation is open source and then download the source from the vendor's homepage.
Tomcat 6.0 for example is open source, you can download it here (check the Source Code Distributions links at the bottom). It is in the org.apache.catalina.connector.Request class.
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I remember in the past there was an infrastructure given to the public to check the compatibility of the JVM and its libraries itself. If I am correct, that was Java Device Test Framework, which now has magically disappeared. In its place is only the Java Device Test Suite, which is actually only for ME edition (and commercial) or Java Compatibility Kit, which again is not open source & publicly available.
What I'd like to accomplish is to use these tests myself on other non "full JDK" JVMs, like Avian, MobiVM, CrossMobile or TotalCross, in order to have a rough estimation of what is missing and what to expect.
Definately I don't need to check the full JDK -- that would be out of concept. What I am more interested is more base functionality, i.e. things that one could find on the java.base (at most). So, is there any (preferably) open source toolkit available?
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I'll start with presenting my motivation: i am researcher , and i am working on few ideas to prevent java webapp exploits (till now worked with windbg and other tools for non-java type of exploits) .
I am interested to intercept java webapp loading, analize it's bytecode, and optionally hook some of it's methods (client side).
I assume it is possible by extending the class loader.
I assume the hooking and analyzation is possible by using agent instrumentation.
My question is more focusing on best practices , and for those who already expirienced or done some java webapp varification during runtime.
So what tools i should use to intercept and debug the bytecode of the java webapp?
What framework should i use to write my instrumentation?
What editing tool is best for this porposes, eclipse, IDE, others?
Do you have any guidlines / links to open source project with similar intentions?
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I use Eclipse for my day job, working on a enterprise java project. Here are some things I got used to working with Eclipse,
Most of the coding are done to interfaces and concrete classes are wired using factories or using spring dependency injection like,
InterfaceName obj=ObjFactory.getImpl(args)
I have to look at Class hierarchy often to go to the method that is being invoked, this is very easy in Eclipse (C+T)
Code completion for all methods (methods in different source files and from jars).
Highlight errors while editing.
Tracing call hierarchy
I tried Emacs some time back for shell scripting on a remote machine and I found that to be very useful.
I would love to use Emacs for my java development if there are tools out there which can help me do things that I do with Eclipse. Any suggestions?
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I'm attempting to profile a Java EE project (EJBs, Servlet, JSP) which is deployed in JBoss Application Server 5.
I would like to find the methods which use the most cpu and memory.
What are the recommended methods and tutorials?
Install JBoss Tools in Eclipse. This gives you a button to start the server in profile mode (and to deploy your app to the server).
Another option is to add -agentlib:JPIBootLoader=JPIAgent:server=standalone;CGProf to the startup script of JBoss and attach a standard profiling tool (like TPTP) to the running instance, see Profiling J2SE 5.0 based applications using Eclipse TPTP.
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What's the best way to achieve central management of a cluster of Tomcat servers in production? Specifically, I'm looking for automatic application (WAR) deployment, consolidated logs, and basic health monitoring at a minimum. What open source or commercial management tools are people using for this?
LambdaProbe is a commonly used open source solution.
you can get Cluster health monitoring and App deployment, see the screenshots and in particular http://www.lambdaprobe.org/d/screenshots/full/cluster.png
and http://www.lambdaprobe.org/d/screenshots/full/deployment.png
You get logging as well, I'm not sure about the consolidated log for the cluster though.
You can look at the (VMWare) Spring Source portfolio, especially:
tc Server (commercial version of
Tomcat)
Hyperic
AFAIK some of the key people of Apache Tomcat are Spring Source engineers.