// Test case for Issue #818
// https://github.com/typetools/checker-framework/issues/818

import org.checkerframework.checker.nullness.qual.*;

public class Issue818 {
  public static @Nullable Object o = null;

  void method() {
    Issue818.o = new Object();
    o.toString();
  }

  void method2() {
    o = new Object();
    Issue818.o.toString();
  }

  void method3() {
    o = new Object();
    o.toString();
  }

  void method4() {
    Issue818.o = new Object();
    Issue818.o.toString();
  }

  static class StaticInnerClass {
    void method() {
      Issue818.o = new Object();
      o.toString();
    }

    void method2() {
      o = new Object();
      Issue818.o.toString();
    }

    void method3() {
      o = new Object();
      o.toString();
    }

    void method4() {
      Issue818.o = new Object();
      Issue818.o.toString();
    }
  }

  class NonStaticInnerClass {
    void method() {
      Issue818.o = new Object();
      o.toString();
    }

    void method2() {
      o = new Object();
      Issue818.o.toString();
    }

    void method3() {
      o = new Object();
      o.toString();
    }

    void method4() {
      Issue818.o = new Object();
      Issue818.o.toString();
    }
  }
}