rspec/rules/S2209/java/rule.adoc

== Why is this an issue?

include::../description.adoc[]

=== Noncompliant code example

[source,java]
----
public class A {
  public static int counter = 0;
}

public class B { 
  private A first = new A();
  private A second = new A();

  public void runUpTheCount() {
    first.counter ++;  // Noncompliant
    second.counter ++;  // Noncompliant. A.counter is now 2, which is perhaps contrary to expectations
  }
}
----

=== Compliant solution

[source,java]
----
public class A {
  public static int counter = 0;
}

public class B { 
  private A first = new A();
  private A second = new A();

  public void runUpTheCount() {
    A.counter ++;  // Compliant
    A.counter ++;  // Compliant
  }
}
----

ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

=== Message

Change this instance-reference to a static reference.


'''
== Comments And Links
(visible only on this page)

include::../comments-and-links.adoc[]
endif::env-github,rspecator-view[]