Support Option.orNull() (#2572)

src/main/java/io/vavr/control/Option.java

@@ -486,6 +486,23 @@ public final Option<T> orElse(Supplier<? extends Option<? extends T>> supplier)
         return isEmpty() ? (Option<T>) supplier.get() : this;
     }
 
+    /**
+     * Returns this {@code Option} if this is defined, or {@code null} if it is empty.
+     *
+     * <pre>{@code
+     * // = Some("Hello World")
+     * Option.of("Hello World").orNull();
+     *
+     * // = null
+     * Option.none().orNull();
+     * }</pre>
+     *
+     * @return this value if it is defined, or {@code null} if it is empty.
+     */
+    public final T orNull() {
+        return isEmpty() ? null : get();
+    }
+
     /**
      * Returns the value if this is a {@code Some}, otherwise {@code supplier.get()} is returned.
      * <p>

src/test/java/io/vavr/control/OptionTest.java

@@ -220,6 +220,18 @@ public void shouldReturnAlternativeOnOrElseSupplierIfValueIsNotDefined() {
         assertThat(Option.none().orElse(() -> opt)).isSameAs(opt);
     }
 
+    // -- orNull
+
+    @Test
+    public void shouldReturnValueOnOrNullIfValueIsDefined() {
+        assertThat(Option.of("v").orNull()).isEqualTo("v");
+    }
+
+    @Test
+    public void shouldReturnValueOnOrNullIfValueIsEmpty() {
+        assertThat(Option.none().orNull()).isNull();
+    }
+
     // -- getOrElse
 
     @Test