Get Entity Class from spring JpaRepository

file.java

	@SuppressWarnings("rawtypes")
	public static Class<?> getEntity(JpaRepository repo) {
		Type clazzes = getGenericType(repo.getClass())[0];
		Type[] jpaClass = getGenericType(getClass(clazzes));
		return getClass( ((ParameterizedType)jpaClass[0]).getActualTypeArguments()[0]);
	}
	
	 public static Type[] getGenericType(Class<?> target) {
		    if (target == null)
		      return new Type[0];
		    Type[] types = target.getGenericInterfaces();
		    if (types.length > 0) {
		      return types;
		    }
		    Type type = target.getGenericSuperclass();
		    if (type != null) {
		      if (type instanceof ParameterizedType) {
		        return new Type[] { type };
		      }
		    }
		    return new Type[0];
		  }
	
	/*
	 * Get the underlying class for a type, or null if the type is a variable
	 * type.
	 * 
	 * @param type
	 * @return the underlying class
	 */
	@SuppressWarnings("rawtypes")
	private static Class<?> getClass(Type type) {
		if (type instanceof Class) {
			return (Class) type;
		} else if (type instanceof ParameterizedType) {
			return getClass(((ParameterizedType) type).getRawType());
		} else if (type instanceof GenericArrayType) {
			Type componentType = ((GenericArrayType) type).getGenericComponentType();
			Class<?> componentClass = getClass(componentType);
			if (componentClass != null) {
				return Array.newInstance(componentClass, 0).getClass();
			} else {
				return null;
			}
		} else {
			return null;
		}
	}