if (systemProperties != null) {
            this.systemProperties = new Properties();
            synchronized (systemProperties) { // avoid concurrent modification if someone else sets/removes an unrelated
                // system property
                this.systemProperties.putAll(systemProperties);
            }
        } else {
            this.systemProperties = null;
        }

        return this;

        if (systemProperties != null) {
            this.systemProperties = new Properties();
            // avoid concurrent modification if someone else sets/removes an unrelated system property
            synchronized (systemProperties) {
                this.systemProperties.putAll(systemProperties);
            }
        } else {
            this.systemProperties = null;
        }

Available JDKs on your machine are automatically detected and wired for the various compile and test tasks.
Some tests require multiple JDKs to be installed on your computer, be aware of this if you make changes related to anything toolchains related.

If you want to explicitly run tests with a different Java version, you need to specify `-PtestJavaVersion=#` with the major version of the JDK you want the tests to run with (e.g. `-PtestJavaVersion=14`).

   * recommended that users of this method override {@link CacheLoader#reload} with an asynchronous
   * implementation; otherwise refreshes will be performed during unrelated cache read and write
   * operations.
   *
   * <p>Currently automatic refreshes are performed when the first stale request for an entry
   * occurs. The request triggering refresh will make a synchronous call to {@link

   * recommended that users of this method override {@link CacheLoader#reload} with an asynchronous
   * implementation; otherwise refreshes will be performed during unrelated cache read and write
   * operations.
   *
   * <p>Currently automatic refreshes are performed when the first stale request for an entry
   * occurs. The request triggering refresh will make a synchronous call to {@link

- Improve Node QueueHint in the NodeAffinty plugin by ignoring unrelated changes that keep pods unschedulable. ([#127444](https://github.com/kubernetes/kubernetes/pull/127444), [@dom4ha](https://github.com/dom4ha)) [SIG Scheduling and Testing]

	}

	return nil
}

// Workloader is used for matching all configs
type Workloader interface {
	GetSelector() *typev1beta1.WorkloadSelector
}

// findMatchedConfigs should filter out unrelated configs that are not matched given podsLabels.
// When the config has no selector labels, this method will treat it as qualified namespace level

  - A server-side apply request that makes unrelated changes to an object which has duplicate items in a keyed list no longer fails, and leaves the existing duplicate items as-is.

- Fixed bug where providing a FieldPath to a CRD Validation Rule would erroneously affect the reported field path of other unrelated CRD Validation Rules on the same schema. ([#123475](https://github.com/kubernetes/kubernetes/pull/123475), [@alexzielenski](https://github.com/alexzielenski))

behavior to limit requests from node API clients, so that each Node can only get / list / watch its own Node API object, and can also only get / list / watch Pod API objects bound to that node. Clients using kubelet credentials to read other nodes or unrelated pods must change their authentication credentials (recommended), adjust their usage, or obtain broader read access independent of the node authorizer. ([#125571](https://github.com/kubernetes/kubernetes/pull/125571), [@liggitt](https://github.com/liggitt))...