import com.google.common.collect.Multisets;
import com.google.common.collect.testing.features.CollectionSize;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests multiset-specific read operations. Can't be invoked directly;
 * please see {@link com.google.common.collect.testing.SetTestSuiteBuilder}.
 *
 * @author Jared Levy
 */
@GwtCompatible

import com.google.common.collect.Multisets;
import com.google.common.collect.testing.features.CollectionSize;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests multiset-specific read operations. Can't be invoked directly;
 * please see {@link com.google.common.collect.testing.SetTestSuiteBuilder}.
 *
 * @author Jared Levy
 */
@GwtCompatible

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cling.invoker.mvnup.goals;

import java.nio.file.Path;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * Result of an upgrade strategy application.

      this.map = map;
      this.setUpRan = setUpRan;
    }

    @Override
    public Object invoke(Object target, Method method, Object[] args) throws Throwable {
      assertTrue("setUp should have run", setUpRan.get());
      try {
        return method.invoke(map, args);
      } catch (InvocationTargetException e) {
        throw e.getCause();
      } catch (IllegalAccessException e) {

     *
     * @param v1 sources producer for V1, receiver is the `src/main` directory
     * @param v2 sources producer for V2, receiver is the `src/main` directory
     * @param block convenience block invoked on the result
     * @return the check result
     */
    private
    fun runBinaryCompatibilityCheck(v1: File.() -> Unit, v2: File.() -> Unit, block: CheckResult.() -> Unit = {}): CheckResult {

        assertThat(foo.isPublic(), is(true));
        assertThat(foo.isStatic(), is(not(true)));
        assertThat(foo.isFinal(), is(not(true)));
        assertThat(foo.isAbstract(), is(not(true)));
        assertThat(foo.invoke(new MyBean()), is((Object) "hoge"));
    }

    /**
     * @throws Exception
     */
    @Test(expected = MethodNotStaticRuntimeException.class)
    public void testFoo_InvokeStatic() throws Exception {

   * don't hang around during other tests.)
   */
  @Override
  public void tearDown() throws Exception {
    try {
      Thread.class.getMethod("stop").invoke(this);
      join();
    } catch (ReflectiveOperationException e) {
      // stop() threw or did not exist. Don't join() the thread, which might hang forever.
    }

    if (uncaughtThrowable != null) {

 */
package org.apache.maven.cling.invoker.mvnup.goals;

import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Map;
import java.util.Optional;

import eu.maveniverse.domtrip.Document;
import eu.maveniverse.domtrip.Editor;
import eu.maveniverse.domtrip.Element;
import org.apache.maven.api.cli.mvnup.UpgradeOptions;
import org.apache.maven.cling.invoker.mvnup.UpgradeContext;

    service.startAsync().awaitRunning();
    assertTrue(service.startUpCalled);
    assertEquals(Service.State.RUNNING, service.state());

    enterRun.await(); // to avoid stopping the service until run() is invoked

    service.stopAsync().awaitTerminated();
    assertTrue(service.shutDownCalled);
    assertEquals(Service.State.TERMINATED, service.state());
    executionThread.join();
  }

本例中是**字符串**：

```Python
"{$callback_url}/invoices/{$request.body.id}"
```

因此，如果您的 API 用户（外部开发者）发送请求到您的 API：

```
https://yourapi.com/invoices/?callback_url=https://www.external.org/events
```

使用如下 JSON 请求体：

```JSON
{
    "id": "2expen51ve",
    "customer": "Mr. Richie Rich",