@DisplayName("Edge: calling renew() on a null reference throws NPE")
    void renewOnNullReferenceThrowsNPE() {
        // Arrange: null reference to the interface
        SmbRenewableCredentials creds = null;

        // Act + Assert: invoking renew() on null triggers NullPointerException
        assertThrows(NullPointerException.class, () -> {
            // Intentional NPE through dereference of a null interface reference

org.eclipse.jdt.core.formatter.tabulation.char=space
org.eclipse.jdt.core.formatter.tabulation.size=4

# Silence warnings about references to jdk internals. We intentionally use some
# and have much tighter control of the warnings in the forbidden APIs gradle
# task which is the definitive list of allowed references.
org.eclipse.jdt.core.compiler.problem.forbiddenReference=ignore

        void executeAndCompare(ListIterator<E> reference, Iterator<E> target) {
          internalExecuteAndCompare(reference, target, NEXT_METHOD);
        }
      };
  Stimulus<E, Iterator<E>> remove =
      new Stimulus<E, Iterator<E>>("remove") {
        @Override
        void executeAndCompare(ListIterator<E> reference, Iterator<E> target) {
          internalExecuteAndCompare(reference, target, REMOVE_METHOD);
        }
      };

  export JAVA14_HOME="${HOME}"/.java/openjdk14
  export JAVA15_HOME="${HOME}"/.java/openjdk15

  ## 6.8 branch is not referenced from any bwc project in master so we need to
  ## resolve its dependencies explicitly
  rm -rf checkout/6.8
  git clone --reference $(dirname "${SCRIPT}")/../.git https://github.com/elastic/elasticsearch.git --branch 6.8 --single-branch checkout/6.8
  export JAVA_HOME="${JAVA11_HOME}"

    scm:
      - git:
          name: origin
          # master node jenkins user ~/.ssh
          credentials-id: f6c7695a-671e-4f4f-a331-acdce44ff9ba
          reference-repo: "/var/lib/jenkins/.git-references/elasticsearch.git"
          branches:
            - "${branch_specifier}"
          url: "https://github.com/elastic/elasticsearch.git"
          basedir: ""
          wipe-workspace: true

        // Enable all javadoc warnings, except for:
        // - missing: Classes and methods are not required to have javadoc
        // - reference: We allow references to classes that are not part of the compilation
        addBooleanOption("Xdoclint:all,-missing,-reference", true)

        // Add support for custom tags
        tags("apiNote:a:API Note:", "implSpec:a:Implementation Requirements:", "implNote:a:Implementation Note:")

Extra metadata maintained internally in `xl.meta` for a transitioned object

```
...

ARG BASE_IMAGE=ubuntu:22.04@sha256:445586e41c1de7dfda82d2637f5ff688deea9eb5f5812f8c145afacc35b9f0db
FROM $BASE_IMAGE AS devel
# See https://docs.docker.com/reference/dockerfile/#understand-how-arg-and-from-interact
# on why we cannot reference BASE_IMAGE again unless we declare it again.
################################################################################

# Install devtoolset build dependencies

//   example, one cannot use the output of "switch" node as input.
// - `inputs` and `outputs` cannot have reference types. Reference types are
//   not exposed through C API and are being replaced with Resources. We support
//   reference types inside function's body to support legacy code. Do not
//   use them in new code.
// - Every node in the function's body must have all of its inputs (including

      }
    }
  }

  /** A weakly referenced value that also has a reference to its containing entry. */
  interface WeakValueReference<K, V, E extends InternalEntry<K, V, E>> {
    /**
     * Returns the current value being referenced, or {@code null} if there is none (e.g. because