2012/12/28 Casper Wandahl Schmidt <kalle.pri...@gmail.com>:
> Den 28-12-2012 09:41, Shakun Nag skrev:
>
>> I am working on a web application which has been build on JDK/JRE 1.6.0_06
>> and has been deployed on Tomcat 5.5.9 server. This application is on
>> production since 2008. There is a plan to upgrade JDK/JVM to 1.7.0_07. My
>> concern is that after the upgrade of JDK and JVM, will the application be
>> deploying and running successfully on the aforesaid version of Tomcat i.e.
>> 5.5.9 with out any issues? There is no information available either on
>> java<http://www.javaranch.com/> or
>> on Apace Tomcat site regrading the compatibility of java 1.7 with tomcat
>> 5.5.9. The only information I was able to collect is that Tomcat 5.5.9
>> requires minimum 1.4 version. There are no resources available for the
>> maximum compatible version.
>>
>> Please let me know if somebody has done such upgrade of their application
>> or is aware of any known compatibility issue. I am afraid that we will
>> need
>> to upgrade tomcat as well along with upgrading to java 1.7. Do let me know
>> if any more information is required.
>>
>> PS: This is an urgent request to evaluate the feasibility. So we don't
>> have
>> much time, budget and resources to carry out a POC.
>>
> I don't know about the Tomcat 5.5.9 on JVM 1.7 but why not upgrade Tomcat as
> well? I couldn't find 5.5.9 in the archives, but 5.5.12 is from 2005-09-23
> and 5.0.30 is from 2004-11-24 so I guess 5.5.9 is from somewhere in 2005
> which is almost 8 years ago! O' boy that is out of date and has some serious
> security flaws.

+1

Tomcat 5.5 is no more supported, and will be removed from the site in
a few days,
http://tomcat.apache.org/tomcat-55-eol.html

Known security issues:
http://tomcat.apache.org/security.html

Migration guide:
http://tomcat.apache.org/migration.html


Regarding someone running 5.5.9 with Java 7,
1. I think hardly anybody has such experience.

2. There certainly were several fixes in TC7 & TC6 to make it run with
Java 7. The most important being
http://svn.apache.org/viewvc?view=revision&revision=1174884

None of such fixes were backported to 5.5. Whether they are relevant
for you, I do not know.


If you are going to upgrade Tomcat, I'd recommend Tomcat 7. It is
tested better, I think there are more people running it with Java 7
than Tomcat 6, it has faster release cycle if anything needs fixing.

Best regards,
Konstantin Kolinko

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