Eclipse compatibility with MacOS Mojave

[jmenzies12]

Hey there,

Are the most recent versions of Eclipse no longer compatible with MacOS Mojave?

Our application was built on Eclipse and works for me on MacOS Monterey, however a recent user has been unable to run on MacOS Mojave. Just wanted to double check if this is the case, otherwise I will keep investigating on our side.

Regards
Jonathan

[HeikoKlare]

What sometimes breaks compatibility with older OS versions are changes in the native bindings used by SWT, but I am not aware of any changes for MacOS in the recent past and I also don't see any in the history (e.g., https://github.com/eclipse-platform/eclipse.platform.swt/tree/master/bundles/org.eclipse.swt/Eclipse%20SWT%20PI).

Might be that we started to build with/against newer versions of MacOS which implicitly breaks compatibility with older versions. In particular since Mojave seems to be out-of-support for quite some time, Apple may also not support backwards compatibility when compiling with/against newer MacOS versions anymore. But I have to admit that I have not further knowledge/insights here.

Do you know what exactly prevents the application from running on MacOS Mojave, i.e., are there any error messages or log entries? And can you say with which Eclipse release exactly it stopped to work?

[jmenzies12]

Thanks for the response. I was awaiting the log files from the user who was having the issue.

I have added the error below, this build of our application was based on Eclipse 2024-09. From the error it looks the incompatibility is due to the equinox launcher having been built for Mac OS X 11.0. So this would mean anything before Mac OS X 11.0 (Big Sur) would now be incompatible.

advoCATE dlopen(/Applications/AdvoCATE-0.50.0-s.app/Contents/MacOS//../Eclipse/plugins/org.eclipse.equinox.launcher.cocoa.macosx.x86_64_1.2.1100.v20240722-2106/eclipse_11904.so, 2): Symbol not found: _objc_opt_respondsToSelector Referenced from: /Applications/AdvoCATE-0.50.0-s.app/Contents/MacOS//../Eclipse/plugins/org.eclipse.equinox.launcher.cocoa.macosx.x86_64_1.2.1100.v20240722-2106/eclipse_11904.so (which was built for Mac OS X 11.0) Expected in: /usr/lib/libobjc.A.dylib in /Applications/AdvoCATE-0.50.0-s.app/Contents/MacOS//../Eclipse/plugins/org.eclipse.equinox.launcher.cocoa.macosx.x86_64_1.2.1100.v20240722-2106/eclipse_11904.so

I cannot test this myself so I'm not sure the earliest version of Eclipse that it stopped working. Is there a way to check which version of MacOS the launcher was built with, without running it on a version of MacOS that would cause the error?