Reference<?> ref;
        while ((ref = referenceQueue.poll()) != null) {
            handlePhantomReference(ref);
        }

        // Check for old unclosed resources
        long now = System.currentTimeMillis();
        for (ResourceHolder holder : activeResources.values()) {
            if (!holder.closed && holder.getAge() > maxResourceAge) {
                reportPotentialLeak(holder);
            }

It can be used by third party applications and systems.

And it can also be used by yourself, to debug, check and test the same application.

## The `password` flow { #the-password-flow }

Now let's go back a bit and understand what is all that.

The `password` "flow" is one of the ways ("flows") defined in OAuth2, to handle security and authentication.

		Age:      sql.NullInt64{Int64: 18, Valid: true},
		Male:     sql.NullBool{Bool: true, Valid: true},
		Height:   sql.NullFloat64{Float64: 1.8888, Valid: true},
		Birthday: sql.NullTime{Time: time.Now(), Valid: true},
		Allergen: NullString{sql.NullString{String: "Allergen", Valid: true}},
		Password: EncryptedData("pass1"),
		Bytes:    []byte("byte"),
		Num:      18,
		Strings:  StringsSlice{"a", "b", "c"},

		},
		{
			time.Date(2017, time.August, 5, 0, 0, 53, 0, utcLoc),
			"RELEASE.2017-08-05T00-00-53Z", "",
		},
		{
			time.Now().UTC(), "2017-09-29T19:16:56Z",
			"2017-09-29T19:16:56Z is not a valid release tag",
		},
		{
			time.Now().UTC(), "DEVELOPMENT.GOGET",
			"DEVELOPMENT.GOGET is not a valid release tag",
		},
		{
			time.Date(2017, time.August, 5, 0, 0, 53, 0, utcLoc),

        long expectedIndexNumber = 0x0123456789ABCDEFL;
        SMBUtil.writeInt8(expectedIndexNumber, sourceBuffer, 0);
        fileInternalInfo.decode(sourceBuffer, 0, sourceBuffer.length);

        // Now test encode
        byte[] destinationBuffer = new byte[8];
        int bytesEncoded = fileInternalInfo.encode(destinationBuffer, 0);

        // Verify
        assertEquals(8, bytesEncoded);

mc admin user add myminio newuser newuser123
```

Once the user is successfully created you can now apply the `getonly` policy for this user.

```
mc admin policy attach myminio getonly --user=newuser
```

### 3. Create a new group

```
mc admin group add myminio newgroup newuser
```

Once the group is successfully created you can now apply the `getonly` policy for this group.

```

        message.resetStyle().append(resource.getResourceName());
        message.style(STYLE).append(" (").append(format.format(contentLength));

        Duration duration = Duration.between(resource.getStartTime(), MonotonicClock.now());
        long nanos = duration.toNanos();
        if (nanos > 0) {
            double seconds = nanos / (double) TimeUnit.SECONDS.toNanos(1); // Convert to fractional seconds

The example above shows all the parts you need, but it's not very useful yet, as you could have just returned the `item` directly, and **FastAPI** would put it in a `JSONResponse` for you, converting it to a `dict`, etc. All that by default.

Now, let's see how you could use that to return a custom response.

Let's say that you want to return an <a href="https://en.wikipedia.org/wiki/XML" class="external-link" target="_blank">XML</a> response.

	lastSyncTime := atomic.LoadUint64(&globalIAMSys.LastRefreshTimeUnixNano)
	if lastSyncTime != 0 {
		m.Set(sinceLastSyncMillis, float64((uint64(time.Now().UnixNano())-lastSyncTime)/uint64(time.Millisecond)))
	}
	m.Set(syncFailures, float64(atomic.LoadUint64(&globalIAMSys.TotalRefreshFailures)))
	m.Set(syncSuccesses, float64(atomic.LoadUint64(&globalIAMSys.TotalRefreshSuccesses)))

}
```