//at least one of the classes from the new jar is already present in jar classpath
//to avoid calculation which class gets on the classpath first, rebuild all
return new DependencyToAll("at least one of the classes of '" + jarArchive.file.getName() + "' is already present in classpath");
} else {
//none of the new classes in the jar are duplicated on classpath, don't rebuild
return new DefaultDependentsSet();
}
}
JarSnapshot previous = previousCompilation.getJarSnapshot(jarChangeDetails.getFile());
if (previous == null) {