RMI and Tomcat

Sun, 24 Dec 2000 21:27:26 -0800

I have coded a simple example Servlet/Applet program using RMI to communicate between the two.  I am running Tomcat 3.2.1 with the JDK1.3 on Linux.  First of all, I think I discovered a misconfiguration in the tomcat.sh file that doesn't allow you to start with the SecurityManager enabled. I used the following command to start the tomcat server:
 
java -classpath TOMCAT_HOME/lib/ant.jar:$TOMCAT_HOME/lib
/jasper.jar:$TOMCAT_HOME/lib/jaxp.jar:$TOMCAT_HOME/lib/parser.jar:$TOMCAT_HOME/l
ib/servlet.jar:$TOMCAT_HOME/lib/webserver.jar -Djava.security.manager -Djava.sec
urity.policy="/usr/local/tomcat/conf/tomcat.policy" -Dtomcat.home=$TOMCAT_HOME o
rg.apache.tomcat.startup.Tomcat &
 
Notice that the "-Djava.security.policy" option only has one "=", unlike in the stock tomcat.sh file where it has two.  Is this a problem?  Because with the two "=", it doesn't allow me to start..
 
Another problem with the startup script is that when I provide the "-security" option, it prints the following usage prompt:
 
Usage: java org.apache.tomcat.startup.Tomcat {options}
  Options are:
    -config file (or -f file)  Use this file instead of server.xml
    -help (or help)            Show this usage report
    -home dir (or -h dir)      Use this directory as tomcat.home
    -stop                      Shut down currently running Tomcat
 
It seems that this is because the "-security" option isn't being stripped properly from the command that gets executed.  Is this right or am I wrong?
 
So, now on to my real problem.  When I use my custom startup command:
java -classpath $TOCMAT_HOME/lib/ant.jar:$TOMCAT_HOME/lib
/jasper.jar:$TOMCAT_HOME/lib/jaxp.jar:$TOMCAT_HOME/lib/parser.jar:$TOMCAT_HOME/l
ib/servlet.jar:$TOMCAT_HOME/lib/webserver.jar -Djava.security.manager -Djava.sec
urity.policy="/usr/local/tomcat/conf/tomcat.policy" -Dtomcat.home=$TOMCAT_HOME o
rg.apache.tomcat.startup.Tomcat &
 
(which manages to start the server), with a AllPermissions tomcat.policy file, I get the following exception thrown in the browser when I try to access my applet:
 
Using JRE version 1.3.0 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\Lucifier
Proxy Configuration: Browser Proxy Configuration
 
JAR cache enabled.
 
rmi://www.moogoogablau.net:1099/ChatServlet
 
Remote exception: Connection refused to host: www.moogoogablau.net; nested exception is:
 java.net.ConnectException: Connection refused: no further information
java.security.AccessControlException: access denied (java.lang.RuntimePermission exitVM)
 at java.security.AccessControlContext.checkPermission(AccessControlContext.java:272)
 at java.security.AccessController.checkPermission(AccessController.java:399)
 at java.lang.SecurityManager.checkPermission(SecurityManager.java:545)
 at java.lang.SecurityManager.checkExit(SecurityManager.java:765)
 at java.lang.Runtime.exit(Runtime.java:91)
 at java.lang.System.exit(System.java:701)
 at RMIChatApplet.getChatServer(RMIChatApplet.java:58)
 at RMIChatApplet.init(RMIChatApplet.java:91)
 at sun.applet.AppletPanel.run(AppletPanel.java:344)
 at java.lang.Thread.run(Thread.java:484)
 
Can someone please provide me with a better, step-by-step configuration of tomcat for use with RMI or at least some tips as to what I might be doing wrong?
 
thanks
nick

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