Cannot use the Java examples provided due to "NoClassDefFoundError" #29

Steps to reproduce

I followed the directions here (after cloning the repository and having Java installed): https://in3.readthedocs.io/en/develop/api-java.html#id1

Running build.sh produced man .class files. There were no errors. When I run "java -cp $IN3/build/lib/in3.jar:. GetBlockAPI" (or other Java programs besides GetBlockAPI), I get an error. I cannot run the compiled examples of this in3 Git repository.

Expected behavior

I expect the programs to run without errors.

Actual behavior

When I run "java -cp $IN3/build/lib/in3.jar:. GetBlockAPI", I get this error message:

Exception in thread "main" java.lang.NoClassDefFoundError: in3/IN3
at GetBlockAPI.main(GetBlockAPI.java:12)
Caused by: java.lang.ClassNotFoundException: in3.IN3
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
... 1 more

System configuration

I am using Ubuntu 18.04 and OpenJDK 11.0.9.1.

Incubed version

I cloned this Git repository from the master branch.

Request

How do you run Java programs in the examples directory after you clone this Git repository and run the build.sh script?

Incubed Configuration

Chain