Hi,
I am using Tomcat 4.1 and I am accessing MS SQL Server database via JDBC. I
have a JSP that calls a web bean. This web bean has a section of code that
I want to synchronize, but when I synchronize the method, Tomcat doesn't
actually synchronize the threads. (I tried this by having 2 users access my
JSP at the same time). When I synchronize the code in the method by using a
mutex, it works.
So, doing this doesn't work:
public synchronized void amethod()
{
//some code that access the database and needs to be synchronized
}
But doing this works:
public void amethod()
{
String mutex = "";
synchronize(mutex)
{
//some code that access the database and needs to be synchronized
}
}
Why does synchronization on the method doesn't work? Does Tomcat not allow
locking of object caused by method level synchronization? Any help will be
appreciated.
Thanks,
Malia
