Install libnb-javaparser-java by entering the following commands in the terminal:
sudo apt update sudo apt install libnb-javaparser-java
Parser for the Java language which is good for use in tools
NetBeans parser for Java is patched version of the Java compiler. The patches are necessary for making the compiler usable in tools. They contain things like improved error recovery, perfomance improvements etc. . Please notice that the NetBeans Java parser is intended solely for use in development tools and can not and should not be used as a Java compiler. It does not produce class files. If you want to compile Java source code use the javac compiler included in JDK releases.