[ jEdit-devel ] [ jedit-Bugs-1547635 ] jEdit 4.3pre6 installer will not run under java 1.4

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Bugs item #1547635, was opened at 2006-08-27 15:32
Message generated for change (Comment added) made by ezust
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Category: installer
Group: None
>Status: Closed
>Resolution: None
Priority: 5
Submitted By: Ian Lewis (ian_lewis)
Assigned to: Björn Kautler (vampire0)
Summary: jEdit 4.3pre6 installer will not run under java 1.4

Initial Comment:
Attempting to run the installer using Sun's jre 1.4.2
results in UnsupportedClassVersionErrors

ian@gazelle:~/downloads$ java -jar jEdit4.3pre6install.jar
Exception in thread "main"
java.lang.UnsupportedClassVersionError:
installer/Install (Unsupported major.minor version 49.0)
        at java.lang.ClassLoader.defineClass0(Native
Method)
        at
java.lang.ClassLoader.defineClass(ClassLoader.java:539)
        at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
        at
java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
        at
java.net.URLClassLoader.access$100(URLClassLoader.java:55)
        at
java.net.URLClassLoader$1.run(URLClassLoader.java:194)
        at
java.security.AccessController.doPrivileged(Native Method)
        at
java.net.URLClassLoader.findClass(URLClassLoader.java:187)
        at
java.lang.ClassLoader.loadClass(ClassLoader.java:289)
        at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
        at
java.lang.ClassLoader.loadClass(ClassLoader.java:235)
        at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)

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>Comment By: Alan Ezust (ezust)
Date: 2006-09-07 21:39

Message:
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It had this before, right at the top of the page:

Java 2 version 1.5 is recommended for all versions of jEdit.
Before installing jEdit, make sure you have a compatible
Java virtual machine; see the compatibility page for details.

But I added "requires Java 1.5" next to the file too.

Closed ticket.



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Comment By: Marcelo Vanzin (vanza)
Date: 2006-09-07 20:32

Message:
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Hi Vampire, 

It's not that it mentions that it runs on 1.4, it's that it
doesn't mention that it needs 1.5. I'm talking about the
download page. People are used to jEdit running on 1.4, so
it should be made clear that 4.3pre6 only runs on 1.5 right
on the download page.

It's metiond on the requirements page, but that's one or two
clicks away from the download page (so, really, who's gonna
look at that? :-)).

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Comment By: Björn Kautler (vampire0)
Date: 2006-09-07 16:19

Message:
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Hey vanza, where on the website is mentioned it needs 1.4?
I don't find it to change it to 1.5.
Or do you mean it is noted nowhere?
If so, where do you think it should be mentioned?

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Comment By: Ian Lewis (ian_lewis)
Date: 2006-08-27 15:57

Message:
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It might be better to allow the installer to at least run on
earlier versions and tell you that you should have Java 5.
Like make the main installer class compatible with 1.4 and
have it check the version.



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Comment By: Marcelo Vanzin (vanza)
Date: 2006-08-27 15:48

Message:
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jEdit requires Java 5 starting with 4.3pre6. I was going to
close the bug, but I just noticed that the website doesn't
mention this, so I'll leave this open until the website is
updated.

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