VAPI-2496 add wait attribute to StopStream (#206)

* VAPI-2496 add `wait` attribute to `StopStream`

* forgot quotes

Author: ajrice6713

src/main/java/com/bandwidth/sdk/model/bxml/StopStream.java

@@ -25,6 +25,7 @@
  *
  * @param name (str, optional): The name of the stream to stop.
  *      This is either the user selected name when sending the <StartStream> verb, or the system generated name returned in the Media Stream Started webhook if <StartStream> was sent with no name attribute.
+ * @param wait (bool, optional): If true, the BXML interpreter will wait for the stream to stop before processing the next verb.
  */
 public class StopStream implements Verb {
 
@@ -33,6 +34,14 @@ public class StopStream implements Verb {
     @XmlAttribute
     protected String name;
 
+    @XmlAttribute
+    protected Boolean wait;
+
+    // Original constructor for backwards compatibility
+    public StopStream(String name) {
+        this.name = name;
+    }
+
     @Override
     public String getVerbName() {
         return TYPE_NAME;

src/test/java/com/bandwidth/sdk/unit/models/bxml/StopStreamVerbTest.java

@@ -27,4 +27,12 @@ public void stopStreamVerbWorks() throws JAXBException {
 
         assertThat(new Bxml().with(new StopStream("name")).toBxml(jaxbContext), is(expectedBxml));
     };
+
+    @Test
+    public void stopStreamVerbWithWaitWorks() throws JAXBException {
+        JAXBContext jaxbContext = JAXBContext.newInstance(Bxml.class);
+        String expectedBxml = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?><Bxml><StopStream name=\"name\" wait=\"true\"/></Bxml>";
+
+        assertThat(new Bxml().with(new StopStream("name", true)).toBxml(jaxbContext), is(expectedBxml));
+    };
 };