package test; public class C extends JavaClass { public void foo(JavaClass javaClass) { javaClass.setField(javaClass.getField() + 1); javaClass.setField(javaClass.getField() - 1); setProperty(javaClass.getField()); javaClass.setField(javaClass.getField() - getField()); setField(getProperty()); setField(getField() * 2); setField(getField() * 2); String s = JavaClass.Companion.getNAME(); } }