1.Added to build.gradle implementation group: 'org.libreoffice', name: 'libreoffice', version: '7.0.0'
2.'Refresh gradle' project in Eclipse
4.Adding them manually seems to work: import com.sun.star.comp.helper.Bootstrap;
Bootstrap.bootstrap();
But classes are not accessible in code with code completion
Check your Type Filters preference page for Java. com.sun
was originally only present in the Java Runtime, and not meant for application use, so filtered out.