kemitix-checkstyle-ruleset/builder/src/main/resources/rules/VisibilityModifier.md

This check cannot be suppressed.

Checks the visibility of class members to help enforce encapsulation. Only static final fields, immutable (see list below) fields or field with special annotation (see list below), may be public.

The following are considered immutable when final, and can be public:

• java.lang.String
• java.lang.Integer
• java.lang.Byte
• java.lang.Character
• java.lang.Short
• java.lang.Boolean
• java.lang.Long
• java.lang.Double
• java.lang.Float
• java.lang.StackTraceElement
• java.math.BigInteger
• java.math.BigDecimal
• java.io.File
• java.util.Locale
• java.util.UUID
• java.net.URL
• java.net.URI
• java.net.Inet4Address
• java.net.Inet6Address
• java.net.InetSocketAddress

Fields with the following annotations may be public:

• org.junit.Rule
• org.junit.ClassRule
• com.google.common.annotations.VisibleForTesting

Valid:

class Foo {

    public final Long id;

    public final String name;

    private String description;

    @VisibleForTesting
    public State state;

    Foo(final Long id, final String name) {
        this.id = id;
        this.name = name;
    }
}

Invalid:

class Foo {

    public Long id;

    public String name;

    private String description;

    public State state;

    Foo(final Long id, final String name) {
        this.id = id;
        this.name = name;
    }
}