checker/tests/nullness/TestValOf.java

// Test case for issue #243: https://github.com/typetools/checker-framework/issues/243

public class TestValOf<T extends Enum<T>> {

  private final Class<T> enumClass;

  private TestValOf(Class<T> enumClass) {
    this.enumClass = enumClass;
  }

  T foo(String value) {
    return Enum.valueOf(enumClass, value);
  }
}