I was using functions shipped in a .jmod on z/OS, and could not find how to get use them in Eclipse IDE.

The code was

...
import com.ibm.oti.shared.*; 
...

Building Java code for z/OS on other operating systems told me how to build a jar file from the .jmod

I had to use the right level of Java on midrange. See Getting the right Java installed on Linux. This level had the openj9.sharedclasses.jmod file.

Even though I built the jar file and updated the Java build class path, it could not find the package, getting message “The package com.ibm.oti.shared is not available”.

I found

• I had to add the .jmod file to the “module” part of the build class path, and not the classpath itself.
• I had a jar with the same name in the Eclipse application tree.

I fixed these and it worked.