Get Java application server name and version

I don't think there is an easy way to do this, but I know you can identify tomcat from checking the System environment properties

 -- listing properties --
 java.util.logging.config.file=/home/willie/.netbeans/7.0/apache-tom...
 user.dir=/home/willie/apache-tomcat-7.0.14/bin
 java.runtime.version=1.6.0_26-b03
 java.awt.graphicsenv=sun.awt.X11GraphicsEnvironment
 java.endorsed.dirs=/home/willie/apache-tomcat-7.0.14/end...
 os.arch=amd64
 java.io.tmpdir=/home/willie/.netbeans/7.0/apache-tom...
 java.naming.factory.url.pkgs=org.apache.naming
 os.name=Linux
 sun.jnu.encoding=UTF-8
 java.library.path=/usr/lib/jvm/java-6-sun-1.6.0.26/jre/...
 tomcat.util.scan.DefaultJarScanner.jarsToSkip=bootstrap.jar,commons-daemon.jar,tomc...
 java.specification.name=Java Platform API Specification
 java.class.version=50.0
 sun.management.compiler=HotSpot 64-Bit Tiered Compilers
 os.version=2.6.38-8-generic
 user.home=/home/willie
 user.timezone=Africa/Johannesburg
 catalina.useNaming=true
 java.awt.printerjob=sun.print.PSPrinterJob
 java.specification.version=1.6
 file.encoding=UTF-8
 catalina.home=/home/willie/apache-tomcat-7.0.14
 user.name=willie
 java.class.path=/home/willie/apache-tomcat-7.0.14/bin...
 java.naming.factory.initial=org.apache.naming.java.javaURLContext...
 sun.security.krb5.debug=false
 package.definition=sun.,java.,org.apache.catalina.,org.a...
 java.vm.specification.version=1.0
 sun.arch.data.model=64
 java.home=/usr/lib/jvm/java-6-sun-1.6.0.26/jre
 sun.java.command=org.apache.catalina.startup.Bootstrap...
 catalina.base=/home/willie/.netbeans/7.0/apache-tom...
 file.separator=/
 java.vendor.url.bug=http://java.sun.com/cgi-bin/bugreport...
 common.loader=${catalina.base}/lib,${catalina.base}..

you can check for tomcat/jetty/jboss... specific entries and determine the version and server by that means

I have find some code for getting server information of where you deploy your application.
This code is written in Servlet to get server info in which it is running..

String str1 = getServletContext().getServerInfo();

By this you will get the server name and the server's version info.

I think it will some what help you..