[java] MissingStaticMethodInNonInstantiatableClass: False positive with Lombok Builder on Constructor

[mrclmh]

Affects PMD Version:
6.9.0+
7.0.0

Rule: MissingStaticMethodInNonInstantiatableClass

Description:
Using Lomboks Builder annotation on a private constructor triggers MissingStaticMethodInNonInstantiatableClass altough the static builder() method is generated and can be used normally.

Code Sample demonstrating the issue:

package org.example.foo;

import lombok.Builder;

/**
 * TestClass.
 */
public class TestClass {
    @Builder
    private TestClass(final String foo, final Integer bar) {
    }
}

Running PMD through: [Gradle 3.5]

[kdebski85]

I added a PR #5109 to fix the issue.

As a workaround, you can add lombok.Builder to annotations:

    <rule ref="category/java/errorprone.xml/MissingStaticMethodInNonInstantiatableClass">
        <properties>
            <property name="annotations" value="org.springframework.beans.factory.annotation.Autowired,javax.inject.Inject,com.google.inject.Inject,lombok.Builder" />
        </properties>
    </rule>