Interface methods/fields are not package private

If a method/field is from an interface it is public by default but
currently is detected as a (package private) member.

This now check the parent of a member and if it is from an interface
assume it as not being bundle private.

Author: laeubi

ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/search/dependencies/CalculateUsesOperation.java

@@ -30,6 +30,7 @@
 import org.eclipse.core.runtime.SubMonitor;
 import org.eclipse.jdt.core.Flags;
 import org.eclipse.jdt.core.IField;
+import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.IJavaProject;
 import org.eclipse.jdt.core.IMember;
 import org.eclipse.jdt.core.IMethod;
@@ -167,7 +168,17 @@ protected void findReferences(IType type, Set<String> pkgs, boolean binary, IPro
 
 	private static boolean isBundlePrivateMember(IMember type) throws JavaModelException {
 		int flags = type.getFlags();
-		return Flags.isPrivate(flags) || Flags.isPackageDefault(type.getFlags());
+		if (Flags.isPrivate(flags)) {
+			return true;
+		}
+		if (Flags.isPackageDefault(type.getFlags())) {
+			IJavaElement parent = type.getParent();
+			if (parent instanceof IType t) {
+				return !t.isInterface();
+			}
+			return true;
+		}
+		return false;
 	}
 
 	protected final void addPackage(String typeSignature, Set<String> pkgs, IType type, boolean binary,