Why does Tomcat try to use the cache when compilation failed?

Posted by etheros on Server Fault See other posts from Server Fault or by etheros
Published on 2010-02-16T17:33:56Z Indexed on 2010/03/22 18:01 UTC
Read the original article Hit count: 377

Filed under:

tomcat

|

cache

|

java

|

jsp

For some reason, it appears Tomcat is trying to hit its compilation cache when compilation failed.

For example, if I create a JSP containing nothing but Hello, <%=world%>!, predictably, I get an error: org.apache.jasper.JasperException: Unable to compile class for JSP. Subsequent requests however alternate between this and org.apache.jasper.JasperException: org.apache.jasper.JasperException: Unable to load class for JSP.

Further, if I create a JSP containing Hello!, it of course works just fine. If I modify it contain Hello, <%=name%>!, the response alternates between the previously-mentioned compilation error, and the cached Hello!.

What's going on?

© Server Fault or respective owner

Related posts about tomcat

SSL in tomcat with apr and Centos 6

as seen on Super User - Search for 'Super User'
I'm facing a problem setting up my tomcat with apr native lib, I have the following: Tomcat: 7.0.42 Java: 1.7.0_40-b43 OS: Centos 6.4 (2.6.32-358.18.1.el6.i686) APR: 1.3.9 Native lib: 1.1.27 OpenSSL: openssl-1.0.0-27.el6_4.2.i686 My server.xml looks like: ... <Listener className="org.apache… >>> More
Apache+Tomcat VS Stand Alone Tomcat or GlassFish

as seen on Server Fault - Search for 'Server Fault'
Hi, I am setting up a Debian server to serve Java web applications. I have done quite a bit of research for several weeks now. Tomcat's web site says it is better to use stand alone Tomcat for speed if you are not clustering. However, I have seen many people suggest that using Apache + Tomcat… >>> More
Tomcat - How to limit the maximum memory Tomcat will use

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi Guys, I am running Tomcat on a small VPS (256MB/512MB) and I want to explicitly limit the amount of memory Tomcat uses. I understand that I can configure this somehow by passing in the java maximum heap and initial heap size arguments; -Xmx256m -Xms128m But I can't find where to put this… >>> More
Restarting Tomcat from Tomcat itself

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, is it possible to restart Tomcat6 by executing a JSP? This because I would like to deploy the changes of an application by doing it remotely using the webserver. The deploy script is written in bash and it checkouts the latest version from the svn, then package it as a war, then copy it in… >>> More
Tomcat 4.1.X and Tomcat 5.0.X

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a problem about tomcat, Our application designed on Tomcat 4.1.X and When I restart Tomcat 4.1.X there is no problem. But I upgrade it to Tomcat 5.0.X. Now ,when I restart Tomcat 5.0.X session is down and application redirect me to login page. Any idea? >>> More

Related posts about cache

How to remove a package entirely?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Hi I'm quite new to Linux, but before using it I was hearing that Windows programs, after uninstallation, leaves a lot of remains on the hard disc, and Linux removes all. I'm using Ubuntu 10.04. To uninstall packages I'm using sudo apt-get autoremove application_name or sudo aptitude purge application_name… >>> More
LVM / Device Mapper maps wrong device

as seen on Server Fault - Search for 'Server Fault'
Hi, I run a LVM setup on a raid1 created by mdadm. md2 is based on sda6 (major:minor 8:6) and sdb6 (8:22). md2 is partition 9:2. The VG on top of md2 has 4 LVs, var, home, usr, tmp. First the problem: While booting it seems as if the device mapper takes the wrong partition for the mapping! Immediately… >>> More
Application throws NotSerializableException when run on an jboss cluster

as seen on Stack Overflow - Search for 'Stack Overflow'
Environment: JBoss 5.1.0, JBoss Seam 2.2.0 While trying to get my application running in a clustered environment after login I am getting the following exception. Post login we try to store the currentUser in jboss seam session context. java.io.NotSerializableException: org.jboss.seam.util.AnnotatedBeanProperty How… >>> More
Windows Azure Evolution – Caching (Preview)

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
Caching is a popular topic when we are building a high performance and high scalable system not only on top of the cloud platform but the on-premise environment as well. On March 2011 the Windows Azure AppFabric Caching had been production launched. It provides an in-memory, distributed caching service… >>> More
Locking Cache Key without Locking the entire Cache

as seen on Stack Overflow - Search for 'Stack Overflow'
I have servlets that caches user information rather then retrieving it from the user store on every request (shared Ehcache). The issue I have is that if a client is multi-threaded and they make more then one simultaneous request, before they have been authenticated, then I get this in my log: Retrieving… >>> More