When a plugin has a complete and valid configuration, the plugin would be looked up in the Plexus container and be ready to perform any operations requested of it.

h3. Execution of the plugin

// target is empty. Otherwise returns `SubsysInfo` for the desired target only.
// To request the default target only, target must be set to `Default`.
func (c Config) GetSubsysInfo(subSys, target string, redactSecrets bool) ([]SubsysInfo, error) {
	// Check if config param requested is valid.
	defKVS1, ok := DefaultKVS[subSys]
	if !ok {
		return nil, Errorf("unknown subsystem: %s", subSys)
	}

     * @param pageSize the number of documents to include in the page
     * @param startPosition the starting position for pagination
     * @return sublist of documents for the requested page
     */
    protected List<Map<String, Object>> extractList(final List<Map<String, Object>> docs, final int pageSize, final int startPosition) {
        final int size = docs.size();
        if (size == 0) {

   * count. Hence, {@code Splitter.on(',').limit(3).omitEmptyStrings().split("a,,,b,,,c,d")} returns
   * an iterable containing {@code ["a", "b", "c,d"]}. When trim is requested, all entries are
   * trimmed, including the last. Hence {@code Splitter.on(',').limit(3).trimResults().split(" a , b
   * , c , d ")} results in {@code ["a", "b", "c , d"]}.
   *

	"github.com/minio/minio/internal/kms"
	"github.com/minio/minio/internal/logger"
)

type ssekms struct{}

var (
	// S3KMS represents AWS SSE-KMS. It provides functionality to
	// handle SSE-KMS requests.
	S3KMS = ssekms{}

	_ Type = S3KMS
)

// String returns the SSE domain as string. For SSE-KMS the
// domain is "SSE-KMS".
func (ssekms) String() string { return "SSE-KMS" }

    }
}

// in plugin
existingThing = objects.newInstance(DefaultExistingThing.class)
existingThing.convention("some-value")
```

It's not acceptable to treat an unset Provider as if the convention is requested when the convention could be set elsewhere:

```groovy
public interface NewThing {
    Property<String> getSomeProperty()
}

// Unacceptable
String value
if (!getSomeProperty().isPresent()) {

     * method's declaring class. This counterpart method is publicly callable.
     *
     * @param method a method whose publicly callable counterpart is requested.
     * @return the publicly callable counterpart method. Note that if the parameter
     *         method is itself declared by a public class, this method is an identity
     *         function.
     */

	From       *TableExpression  `parser:"\"FROM\" @@"`
	Where      *Expression       `parser:"( \"WHERE\" @@ )?"`
	Limit      *LitValue         `parser:"( \"LIMIT\" @@ )?"`
}

// SelectExpression represents the items requested in the select
// statement
type SelectExpression struct {
	All         bool                 `parser:"  @\"*\""`
	Expressions []*AliasedExpression `parser:"| @@ { \",\" @@ }"`
}

        }
    }

    @Nested
    @DisplayName("Payload Tests")
    class PayloadTests {

        @Test
        @DisplayName("Should retain payload when requested")
        void testRetainPayload() {
            assertFalse(testMessage.isRetainPayload());
            testMessage.retainPayload();
            assertTrue(testMessage.isRetainPayload());
        }

        }
    }

    /**
     * Internal method to send a request to the server.
     *
     * @param request the request to send
     * @throws IOException if an I/O error occurs
     */
    protected void doSend0(final Request request) throws IOException {
        try {
            doSend(request);
        } catch (final IOException ioe) {
            if (LogStream.level > 2) {