[jdt-dev] Problems on MacOSx

[Thomas Hallgren <thomas@xxxxxxx>]

A user of Buckminster has problems with headless builds on MacOS X. The 
Eclipse builder encounters a problem and prints the message:

The project was not built since its build path is incomplete. Cannot find the class file for java.lang.Object.


After an unsuccessful build, these lines can be found in the log:

    [java] INFO:  Installed JRE 'JVM 1.4' removed due to missing VM type extension.
    [java] INFO:  Installed JRE 'JVM 1.4.1' removed due to missing VM type extension.
    [java] INFO:  Installed JRE 'JVM 1.4.2' removed due to missing VM type extension.
    [java] INFO:  Installed JRE 'JVM 1.5' removed due to missing VM type extension.
    [java] INFO:  Installed JRE 'JVM 1.5.0 (MacOS X Default)' removed due to missing VM type extension.

I would like some help interpreting what this means. I think the last 
log line is relevant since the build is intended to use the default JVM. 
What component is it that causes the problem? Is it the JVM that lacks 
something? Who is supposed to declare the missing VM type extension?

The Buckminster bugzilla for this problem can be found here: 
https://bugs.eclipse.org/bugs/show_bug.cgi?id=258587. Any insight that 
might be helpful is greatly appreciated.

Regards,
Thomas Hallgren