So long as those docs about JVMVersion are still true, everything's
good. :)
Thanks,
Sam
On Apr 29, 2005, at 12:12 PM, Shawn Erickson wrote:
On Apr 29, 2005, at 8:44 AM, Sam Berlin wrote:
I have not gotten a Tiger box yet, so I can't test the preferencing,
but is there a way for the application itself to prefer Java 1.5 but
still allow Java 1.4, regardless of the user's preference? IMHO, the
version of Java being used is really an implementation detail,
something the user shouldn't care about. The developer should figure
out which version of Java the program works best with, and prefer
those. For instance, if Info.plist could have something like a
comma-delimited list of versions (in decreasing preference order),
that'd work.
Tiger / Java 5 doesn't change how the "JVMVersion" key works from what
I can see (obviously docs not update to include Java 5 just yet). I
suggest filling an enhancement request.
---
JVMVersion
This key is recommended in any Info.plist file. It determines which
version of Java the application is run with. Table 2-1 lists valid
strings for the JVMVersion key along with a description of which
version of Java is used. Without this key set, your application may
not launch with the version of Java you intend—make sure to set it.
With the Java 1.4.2 release, specifying a minor version of Java has
been deprecated; instead use the asterisks (*) or plus (+) symbols
with a major version. For example use 1.4+ instead of 1.4.2.
Note: If you do not set the JVMVersion key in a double clickable
application, it will run in Java 1.3.1.
Table 2-1 : Values to specify the Java version in Mac OS X
String
Java version used
Notes
1.3.1
1.3.1
Specifies an exact version of Java. It is not recommended that you do
not use this key unless absolutely necessary.
1.3*
1.3.1
Requests the highest version of Java 1.3 available. Note that if Java
1.3 is updated in future releases of Mac OS X, the latest version of
Java 1.3 will be used.
1.3+
1.4.2
Requests the highest version of Java above 1.3. Note that if Java is
updated in future releases of Mac OS X, the latest version of Java
will be used.
1.4.1
1.4.2
If Java 1.4.2 is installed, Java 1.4.1 is no longer used. For
compatibility, applications that specify 1.4.1 will run in Java 1.4.2.
You should update these applications to specify 1.4* or 1.4+ as
appropriate.
1.4*
1.4.2
Specifies the highest version of the Java 1.4 available. Note that if
Java 1.4 is updated in future releases of Mac OS X, the latest version
of Java 1.4 will be used.
1.4+
1.4.2
Specifies the highest version of Java above 1.4. Note that if Java is
updated in future releases of Mac OS X, the latest version of Java
will be used.
-Shawn
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