Extracting JDK Version in a JSP

Thread view:

Wojtek - 13 Mar 2007 22:31 GMT

How do you get the JDK version which TomCat is using to compile a JSP
page?

I have Java code which is valid under 1.6, but which cuases an error
when Tomcat tries to compile the JSP.

Importing the JSP .java file into Ecplise shows no errors at the place
where the JSP compiler complains.

I THINK I have the JDK set to 1.6 in the Tomcat properties, but how do
I know for sure?

There should be a class/method I can use inside a JSP to echo out the
JDK version??

Signature

Wojtek :-)

Reply to this Message

Wojtek - 13 Mar 2007 23:16 GMT

Wojtek wrote :

> There should be a class/method I can use inside a JSP to echo out the JDK
> version??

Yup:

System.getProperty("java.class.path");

Which shows the proper JDK version.

Signature

Wojtek :-)

Reply to this Message

Arne Vajhøj - 14 Mar 2007 00:47 GMT

> Wojtek wrote :
>> There should be a class/method I can use inside a JSP to echo out the
[quoted text clipped - 5 lines]
>
> Which shows the proper JDK version.

System.getProperty("java.vm.version")

and

System.getProperty("java.version")

seems to be intended for this !

Arne

Reply to this Message

Wojtek - 14 Mar 2007 15:07 GMT

Arne Vajhøj wrote :

>> Wojtek wrote :
>>> There should be a class/method I can use inside a JSP to echo out the JDK
[quoted text clipped - 13 lines]
>
> seems to be intended for this !

Yes, except I was after the JDK. The error message was from javac.

Signature

Wojtek :-)

Reply to this Message

Arne Vajhøj - 14 Mar 2007 23:44 GMT

> Arne Vajhøj wrote :
>>> Wojtek wrote :
[quoted text clipped - 16 lines]
>
> Yes, except I was after the JDK. The error message was from javac.

All 3 getProperty should return values for the JRE/JDK used
to run the servlet container.

Arne

Reply to this Message

Extracting JDK Version in a JSP

Free Magazines