added container.wait()

src/main/java/com/amihaiemil/docker/Container.java

@@ -151,5 +151,17 @@ void remove(final boolean volumes, final boolean force, final boolean link)
      *  the expected one (204 NO CONTENT).
      */
     void unpause() throws IOException;
-
+
+
+    /**
+     * Waits on this container.
+     * @param state The state to wait for. One of "not-running"
+     * (the default if null), "next-exit", or "removed"
+     * @see <a href="https://docs.docker.com/engine/api/v1.35/#operation/ContainerWait">
+     * Wait Container</a>.
+     * @throws IOException If something goes wrong.
+     *  the expected one (200).
+     */
+    void waitOn(String state) throws IOException;
+
 }

src/main/java/com/amihaiemil/docker/RtContainer.java

@@ -230,4 +230,23 @@ public void unpause() throws IOException {
             unpause.releaseConnection();
         }
     }
+
+    @Override
+    public void waitOn(final String state) throws IOException {
+        String end = "";
+        if(null == state || state.isEmpty()){
+            end = String.format("?condition=%s", state);
+        }
+        final HttpPost waiter = new HttpPost(
+            this.baseUri.toString() + "/wait" + end
+        );
+        try {
+            this.client.execute(
+                waiter,
+                new MatchStatus(waiter.getURI(), HttpStatus.SC_OK)
+            );
+        } finally {
+            waiter.releaseConnection();
+        }
+    }
 }

src/main/java/com/amihaiemil/docker/UnixDocker.java

@@ -34,7 +34,7 @@
  * Docker engine.
  *
  * <pre>
- *     final Docker docker = new LocalUnixDocker("unix:///var/run/dicker.sock");
+ *     final Docker docker = new LocalUnixDocker("unix:///var/run/docker.sock");
  * </pre>
  * 
  * This implementation manages an internal pool of 10 http connections. Users