fix javadoc following PR comments
@@ -1229,11 +1229,12 @@ public class Util {
/**
*
- * @param l list to check
+ * @param l list to check.
* @param <T>
+ * Type of the list.
* @return
- * l if l is not {@code null}
- * an empty <b>immutable list</b> if l is {@code null}
+ * {@code l} if l is not {@code null}.
+ * An empty <b>immutable list</b> if l is {@code null}.
*/
@Nonnull
public static <T> List<T> fixNull(@CheckForNull List<T> l) {
@@ -1242,11 +1243,12 @@ public class Util {
/**
*
- * @param l set to check
+ * @param l set to check.
* @param <T>
+ * Type of the set.
* @return
- * l if l is not {@code null}
- * an empty <b>immutable set</b> if l is {@code null}
+ * {@code l} if l is not {@code null}.
+ * An empty <b>immutable set</b> if l is {@code null}.
*/
@Nonnull
public static <T> Set<T> fixNull(@CheckForNull Set<T> l) {
@@ -1255,11 +1257,12 @@ public class Util {
/**
*
- * @param l collection to check
+ * @param l collection to check.
* @param <T>
+ * Type of the collection.
* @return
- * l if l is not {@code null}
- * an empty <b>immutable set</b> if l is {@code null}
+ * {@code l} if l is not {@code null}.
+ * An empty <b>immutable set</b> if l is {@code null}.
*/
@Nonnull
public static <T> Collection<T> fixNull(@CheckForNull Collection<T> l) {
@@ -1268,11 +1271,12 @@ public class Util {
/**
*
- * @param l iterable to check
+ * @param l iterable to check.
* @param <T>
+ * Type of the iterable.
* @return
- * l if l is not {@code null}
- * an empty <b>immutable set</b> if l is {@code null}
+ * {@code l} if l is not {@code null}.
+ * An empty <b>immutable set</b> if l is {@code null}.
*/
@Nonnull
public static <T> Iterable<T> fixNull(@CheckForNull Iterable<T> l) {
