fix descriptions of targetOwner and originOwner predicates in JavaAccess

[StefanGraeber]

targetOwner and originOwner() were producing the same message as target() and origin() e.g. "access target where target is annotated with..." instead of "access target where target owner is annotated with..." The existing test is also updated to assert that the correct element is passed to the given predicate, for which new testUtils are introduced.

[hankem]

Thanks for the PR!

[hankem]

I wouldn't introduce unused methods, but keep it simple:

Suggested change

	public static <T> DescribedPredicate<T> predicateWithDescription(String description) {
	return DescribedPredicate.<T>alwaysTrue().as(description);
	}
	public static <T> CapturingDescribedPredicate<T> alwaysFalseCapturingPredicateWithDescription(String description) {
	return new CapturingDescribedPredicate<T>(false, description);
	}
	public static <T> CapturingDescribedPredicate<T> alwaysTrueCapturingPredicateWithDescription(String description) {
	return new CapturingDescribedPredicate<T>(true, description);
	}
	public static class CapturingDescribedPredicate<T> extends DescribedPredicate<T> {
	private final List<T> capturedValues;
	private final Predicate<T> check;
	public CapturingDescribedPredicate(boolean result, String description, Object... params) {
	this(o -> result, description, params);
	}
	public CapturingDescribedPredicate(Predicate<T> check, String description, Object... params) {
	super(description, params);
	this.check = check;
	this.capturedValues = new ArrayList<>();
	}
	@Override
	public boolean test(T t) {
	this.capturedValues.add(t);
	return check.test(t);
	}
	public List<T> getCapturedValues() {
	return Collections.unmodifiableList(new ArrayList<>(capturedValues));
	}
	public static <T> CapturingDescribedPredicate<T> alwaysTrueCapturingPredicateWithDescription(String description) {
	return new CapturingDescribedPredicate<T>(true, description);
	}
	public static class CapturingDescribedPredicate<T> extends DescribedPredicate<T> {
	private final List<T> capturedValues = new ArrayList<>();
	private final Predicate<T> check;
	CapturingDescribedPredicate(boolean result, String description) {
	super(description);
	this.check = o -> result;
	}
	@Override
	public boolean test(T t) {
	this.capturedValues.add(t);
	return check.test(t);
	}

(Note that this also removes the need to import java.util.Collections;.)