Binary package “libjnr-constants-java” in ubuntu bionic
platform constants for Java
Java Native Runtime (JNR) is a collection of Java libraries to make
interfacing with OS-level features easier. JNR uses an alternate
method to JNI or JNA to achieve programming simplicity while still
retaining performance.
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The jnr-constants package gives Java programs access to platform-level
constants, for example errno values.