Summary

Add Objects.toIdentityString.

Problem

At times, a toString mapping independent of the class-provided mapping needs to be used and such a method is not present in the platform.

Solution

Add a method with the functionality in question to java.util.Objects.

Specification

+    /**
+     * {@return a string equivalent to the string returned by {@code
+     * Object.toString} if that method and {@code hashCode} are not
+     * overridden}
+     *
+     * @implSpec
+     * The method returns a string equivalent to:<br>
+     * {@code o.getClass().getName() + "@" + Integer.toHexString(System.identityHashCode(o))}
+     *
+     * @param o an object
+     * @throws NullPointerException if the argument is null
+     * @see Object#toString
+     * @see System#identityHashCode(Object)
+     * @since 19
+     */
+    public static String toIdentityString(Object o) {
+        requireNonNull(o);
+        return o.getClass().getName() + "@" + Integer.toHexString(System.identityHashCode(o));
+    }
+