Missing MCP class

MethodsReturnNonnullByDefault.java

package mcp;
import javax.annotation.Nonnull;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

import javax.annotation.meta.TypeQualifierDefault;

@Documented
@Nonnull
@TypeQualifierDefault(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface MethodsReturnNonnullByDefault {}