Synchronization in servlets

[ch praveen]

Hello Friends,
Basically My servlet is not based on SingleThreadModel, but I want to synchronize only a particular portion of it [reading and writing data to a ServletContext Attribue]. Please post your suggestions.

[William Brogden]

Synchronization in servlets is the same as synchronization in any other Java environment. However, I don't think that simple adding or removing and object as a ServletContext attribute would require synchronization. Of course if multiple requests could modify the object, thats another story.
Browsing around in the source for the Tomcat implementation of ServletContext, I found:

    public Object getAttribute(String name) {
        synchronized (attributes) {
            return (attributes.get(name));
        }
    }
  

so it looks like the implementation is already taking care of synchronization.
Bill