Java 8 equals helper using lambda expression

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public class Equals {  private Equals() {}    public static <t> boolean of(Class<t> type, Object obj, Predicate<t> pred) {   if (obj == null) {    return false;   }   if (!type.isInstance(obj)) {    return false;   }   T other = type.cast(obj);   return pred.test(other);  } } </t></t></t>

Usage example:

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@Override public boolean equals(Object obj) {  return Equals.of(ClassKey.class, obj, other ->    Objects.equals(this.kind, other.kind) &&    Objects.equals(this.obj, other.obj)   ); }