JavaSE/EE + Tomcat 6 + Windows service on 64 bit

Discussion in 'Java' started by Karsten Wutzke, May 22, 2010.

  1. Hello,

    sorry for x-post, but has become rather low activity.

    I set up a new computer with Windows 7 64 bit and I am wondering about
    which downloads I need for Java development. I need the following

    JavaEE (5)
    Tomcat 6

    I started by downloading JDK 32 bit, I thought it would be better to
    stick with something that isn't that new. But Tomcat 6 32 bit wouldn't
    let itself install as a Windows service, because it must be 64 bit
    (known problem). Now the question is:

    Which software do I need in which version?

    JDK in 64 bit?
    For Java EE I couldn't find any 64 bit downloads!
    Does Ant work with 64 bit Java?
    Tomcat 64 bit

    The problem is Java EE, there are no 64 bit downloads.

    I read about people manually replacing the 32 bit tomcat.exe with a 64
    bit version. Is that reliable??

    Should I reinstall 64 bit Java or just go for the Tomcat replacement.
    (Note, I won't need GBs of Java runtime memspace)

    Does JavaEE make a difference between 32 bit and 64 bit?

    Thanks for helping.
    Karsten Wutzke, May 22, 2010
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  2. Karsten Wutzke

    Lew Guest

    This was not a cross-post, which would have been acceptable. This was a
    multi-post, which is not.

    See my answer on
    Lew, May 22, 2010
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  3. Karsten Wutzke

    Arne Vajhøj Guest

    If you want 64 bit then download the 64 bit version.
    That is because Java EE is pure Java. If the JVM is 64 bit then it runs
    64 bit.
    Tomcat itself is also pure Java.

    It is only the service wrapper thingy that are 32 or 64 bit.

    If you need 64 bit then download 64 bit.

    Not a problem. See above.
    If you need more than 2 GB of memory: yes.

    Arne Vajhøj, May 22, 2010
  4. Why did I know someone would remind me of this...? Of course, this was
    not an x-post.
    Karsten Wutzke, May 22, 2010
  5. I have another problem now: my installed Eclipse's won't run anymore.
    It makes sense. Now doesn't offer any 64 bit all-in-one
    packages for PHP and JEE/BIRT, so I either have the choice to install
    all dependencies manually or revert back to 32 bit JDK.

    Can I revert back to 32 bit JDK/JRE and use a 64 bit executable to
    start Tomcat as a Windows service?

    Conflicts conflicts... hate em.

    Karsten Wutzke, May 22, 2010
  6. Karsten Wutzke

    Arne Vajhøj Guest

    You can have two JDK's installed on the same system.

    It may take a little tweaking to get the apps to pick
    the right one, but it can be done.

    Arne Vajhøj, May 23, 2010
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