Apache Tomcat 7.0.39
Apache Tomcat 7.0.39 summary
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Apache Tomcat 7.0.39 description
Apache Tomcat is a web server developed in Java that aims to provide you with a pure Java environment for running web applications. These applications can be run in the interface of an Internet browser such as Firefox, Chrome or Internet Explorer.
In web development, Apache HTTP server is used in order to provide the backbone of multiple websites by processing the requests of the clients. While the HTTP server delivers the webpages to the end user, Tomcat is the tool that provides servlet support in order to add dynamic content to the server.
If you are creating a website that also includes Java code and applets, this application can help the web server run them instead of running in the user’s Internet browser. This greatly improves the reliability of the application and the response time for the end user.
The main components of the server are the servlet container, the HTTP connector and the JSP engine that runs the dynamic content. The servlet container, also known as Catalina, directly interacts with the Java applications and ensures that the access rights of the user are correctly maintained during the session.
The communication between the server and the clients are handled by the HTTP connector that listens to the TCP connections and sends the requests to the JSP Engine. It is also responsible of sending the feedback back to the client after it has been processed.
While there are other alternatives to Tomcat, there are some advantages that make it a reliable solution. First of all, it is a non-commercial solution that can be implemented in any project with minimal resources. On the other hand, the server is developed by a large community that provides support and feedback for the developers.
Overall, due to its features and large pool of resources Apache Tomcat is a viable solution for both small users and large companies that use Java applets on their websites.
What's New in This Release:
Web application reloading and static fields in shared libraries:
· Some shared libraries (many are part of the JDK) keep references to objects instantiated by the web application. To avoid class loading related problems (ClassCastExceptions, messages indicating that the classloader is stopped, etc.), the shared libraries state should be reinitialized.
· Something which might help is to avoid putting classes which would be referenced by a shared static field in the web application classloader, and putting them in the shared classloader instead (JARs should be put in the "lib" folder, and classes should be put in the "classes" folder).
Enabling SSI and CGI Support:
· Because of the security risks associated with CGI and SSI available to web applications, these features are disabled by default.
Security manager URLs:
· In order to grant security permissions to JARs located inside the web application repository, use URLs of of the following format in your policy file: file:${catalina.base}/...
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