Object logger = loggerField.get(null); // static field

        // Verify logger is not null
        assertNotNull(logger);

        // Verify logger is of the expected type
        assertTrue(logger instanceof org.apache.logging.log4j.Logger);
    }

    // Test concurrent execution of hook method
    public void test_hook_concurrentExecution() throws Exception {

  /**
   * @throws IllegalArgumentException if {@code existingValue} is not null.
   */
  /*
   * We could have declared this method 'static' but the additional compile-time checks achieved by
   * referencing the type variables seem worthwhile.
   */
  final void checkNoDuplicate(R rowKey, C columnKey, @Nullable V existingValue, V newValue) {
    checkArgument(
        existingValue == null,

Once the **patch** is successfully applied, developer must run tests to validate the fix that was backported by running following tests, locally.

Unit tests

```
λ make test
```

Verify different type of MinIO deployments work

```
λ make verify
```

Verify if healing and replacing a drive works

```
λ make verify-healing
```

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# Introducción a Tipos en Python

Python tiene soporte para "anotaciones de tipos" opcionales (también llamadas "type hints").

Estas **"anotaciones de tipos"** o type hints son una sintaxis especial que permite declarar el <abbr title="por ejemplo: str, int, float, bool">tipo</abbr> de una variable.

Al declarar tipos para tus variables, los editores y herramientas te pueden proporcionar un mejor soporte.

# مقدمه‌ای بر انواع نوع در پایتون

پایتون از "نوع‌نما"های اختیاری (که بهشون "type hints" یا "type annotations" هم می‌گن) پشتیبانی می‌کنه.

این **"نوع‌نماها"** یا annotationها یه سینتکس خاص هستن که بهت اجازه می‌دن <abbr title="مثلاً: str, int, float, bool">نوع</abbr> یه متغیر رو مشخص کنی.

با مشخص کردن نوع متغیرها، ویرایشگرها و ابزارها می‌تونن پشتیبانی بهتری بهت بدن.

		gerr           error
	)
	replicateDeletes := hasReplicationRules(ctx, bucket, deleteObjectsReq.Objects)
	if rcfg, _ := globalBucketObjectLockSys.Get(bucket); rcfg.LockEnabled {
		hasLockEnabled = true
	}

	type deleteResult struct {
		delInfo DeletedObject
		errInfo DeleteError
	}

	deleteResults := make([]deleteResult, len(deleteObjectsReq.Objects))

	vc, _ := globalBucketVersioningSys.Get(bucket)

func isValidLocation(location string) bool {
	region := globalSite.Region()
	return region == "" || region == location
}

// Supported headers that needs to be extracted.
var supportedHeaders = []string{
	"content-type",
	"cache-control",
	"content-language",
	"content-encoding",
	"content-disposition",
	"x-amz-storage-class",
	xhttp.AmzStorageClass,
	xhttp.AmzObjectTagging,
	"expires",
	xhttp.AmzBucketReplicationStatus,

			guessIsRPCReq(r) || guessIsLoginSTSReq(r) || isAdminReq(r) || isKMSReq(r) {
			h.ServeHTTP(w, r)
			return
		}

		bucket, object := request2BucketObjectName(r)

		// Requests in federated setups for STS type calls which are
		// performed at '/' resource should be routed by the muxer,
		// the assumption is simply such that requests without a bucket
		// in a federated setup cannot be proxied, so serve them at
		// current server.

# Hibernate Validator
# -------------------
constraints.CreditCardNumber.message = {item} jest nieprawidłowym numerem karty kredytowej.
constraints.EAN.message = {item} jest nieprawidłowym kodem kreskowym {type}.
constraints.Email.message = {item} nie jest prawidłowym adresem e-mail.
constraints.Length.message = Długość {item} musi być w zakresie od {min} do {max}.