java-dev

Lars Gustafsson wrote:

> I have tried the -d32 option & I have J2SE 5.0 32 bits selected as  
> my preferred JVM,
> but still the same error.


First, exactly how is your app being launched:
  1. command-line.
  2. double-clicked jar.
  3. bundled app (CoolNameHere.app).

Second, if your app is a bundled app, what value (if any) does the  
JVMVersion key in the Java dictionary of Info.plist have?  If it's 1.6 
+ or 1.6*, there is no 32-bit JVM for that, so make sure you're  
requesting 1.5*.  Your choice of preferred JVM can't make an app that  
says it needs 1.6 run under the 1.5 JVM.

Third, I suggest logging exactly which JVM is actually launching.   
Print the values of the following system properties to the System.err  
stream: "java.version", "os.arch", and "sun.arch.data.model".  Do  
this early in main(), preferably before any static initializers in  
any other classes run, because static initializers frequently load  
JNI libs, and that is obviously failing.  For a bundled app, the  
System.err stream will appear in the console.log of Console.app,  
located under /Applications/Utilities/.

  -- GG

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