java webapp, getContext always return the same object

Question

Note: this is not cross-posting, asking different questions (related ClassCastError when share objects between webapp)

I have two webapps running at two different contexts on the same tomcat instance, when the 2nd apps tried to get the first app context, regardless the name I input, the object is the same context, which is wrong.

public void contextInitialized(ServletContextEvent sce) {
       ServletContext context= sce.getServletContext().getContext("/bling");
       ServletContext context2= sce.getServletContext().getContext("/bla");

Both objects context and context2 have this object id org.apache.catalina.core.ApplicationContextFacade@4376.

I'm using tomcat7. Any tips? tks

Update: Tks for all good suggestions. The problem just happens if the 2nd webapps (where the above snippet is) is deployed at ROOT of the server (a must in my structure, cannot change). Any more hints. Tks.

@LuiggiMendoza you might be wrong, the manual says this: The given path must be begin with "/", is interpreted relative to the server's document root and is matched against the context roots of other web applications hosted on this container. — gerrytan
– gerrytan, Commented Mar 28, 2013 at 5:18
@panky1986 your link is not related with the question at all. — Luiggi Mendoza
– Luiggi Mendoza, Commented Mar 28, 2013 at 5:21

gerrytan · Accepted Answer · 2013-03-28 05:19:56Z

2

I'm guessing it's a timing issue. Maybe when ServletContext A is initialized, and trying to obtain ServletContext B, ServletContext B is not yet initialized / deployed.

To prove this, try another test inside a servlet doGet, and invoke it when you're sure both webapps are deployed properly

answered Mar 28, 2013 at 5:19

gerrytan

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4 Comments

Luiggi Mendoza Over a year ago

I thought the ServletContext was created when deploying the apps, and in Tomcat this happens when starting the server.

gerrytan Over a year ago

But the OP's code seem to be running on context initialized event, maybe it's too early to do this

EyeQ Tech Over a year ago

Hi, tks for your answers. I've updated my question, appreciate if you can provide more answers.

Ray Hulha Over a year ago

Any news on this ? I think @gerrytan was correct with his suspicion that it was indeed a timing issue. Can you confirm (and then accept his answer) Taxi ?

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