add descriptions to decRef and close

Author: sbSteveK

src/main/java/software/amazon/awssdk/crt/eventstream/ClientConnectionContinuationHandler.java

@@ -67,7 +67,7 @@ public CompletableFuture<Void> getContinuationClosedFuture() {
     @Override
     public void close() {
         if (continuation != null) {
-            continuation.decRef();
+            continuation.decRef("close() called");
             continuation = null;
         }
     }

src/main/java/software/amazon/awssdk/crt/eventstream/ClientConnectionHandler.java

@@ -93,7 +93,7 @@ public void close() {
             if (clientConnection.isOpen()) {
                 clientConnection.closeConnection(0);
             }
-            clientConnection.decRef();
+            clientConnection.decRef("close() called");
             clientConnection = null;
         }
     }

src/main/java/software/amazon/awssdk/crt/eventstream/ServerConnectionContinuationHandler.java

@@ -68,7 +68,7 @@ public CompletableFuture<Void> getContinuationClosedFuture() {
     @Override
     public void close() {
         if (continuation != null) {
-            continuation.decRef();
+            continuation.decRef("close() called");
             continuation = null;
         }
     }

src/main/java/software/amazon/awssdk/crt/eventstream/ServerConnectionHandler.java

@@ -76,7 +76,7 @@ public void close() {
         if (connection.isConnectionOpen()) {
             connection.closeConnection(0);
         }
-        connection.decRef();
+        connection.decRef("close() called");
         connection = null;
     }
 }

src/main/java/software/amazon/awssdk/crt/io/ClientBootstrap.java

@@ -90,7 +90,7 @@ private void onShutdownComplete() {
     public static void closeStaticDefault() {
         synchronized (ClientBootstrap.class) {
             if (staticDefaultClientBootstrap != null) {
-                staticDefaultClientBootstrap.close();
+                staticDefaultClientBootstrap.close("closeStaticDefault");
             }
             staticDefaultClientBootstrap = null;
         }

src/main/java/software/amazon/awssdk/crt/io/EventLoopGroup.java

@@ -95,7 +95,7 @@ public static void setStaticDefaultNumThreads(int numThreads) {
     public static void closeStaticDefault() {
         synchronized (EventLoopGroup.class) {
             if (staticDefaultEventLoopGroup != null) {
-                staticDefaultEventLoopGroup.close();
+                staticDefaultEventLoopGroup.close("closeStaticDefault");
             }
             staticDefaultEventLoopGroup = null;
         }

src/main/java/software/amazon/awssdk/crt/io/HostResolver.java

@@ -73,7 +73,7 @@ public static void setStaticDefaultMaxEntries(int maxEntries) {
     public static void closeStaticDefault() {
         synchronized (HostResolver.class) {
             if (staticDefaultResolver != null) {
-                staticDefaultResolver.close();
+                staticDefaultResolver.close("closeStaticDefault");
             }
             staticDefaultResolver = null;
         }