Expose constructor of Exceptions.

Exposing constructor of Exceptions for test purpose.

CTS-Coverage-Bug: 224059548
BUG: 215240597
BUG: 216368595
Test: build
Change-Id: I20af104a891e94873715ab46ecabc3e775638c8c

framework/src/android/net/NetworkReleasedException.java

@@ -18,6 +18,8 @@ package android.net;
 
 import android.annotation.SystemApi;
 
+import com.android.internal.annotations.VisibleForTesting;
+
 /**
  * Indicates that the {@link Network} was released and is no longer available.
  *
@@ -25,7 +27,7 @@ import android.annotation.SystemApi;
  */
 @SystemApi
 public class NetworkReleasedException extends Exception {
-    /** @hide */
+    @VisibleForTesting
     public NetworkReleasedException() {
         super("The network was released and is no longer available");
     }

framework/src/android/net/QosCallbackException.java

@@ -21,6 +21,8 @@ import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.util.Log;
 
+import com.android.internal.annotations.VisibleForTesting;
+
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 
@@ -94,16 +96,12 @@ public final class QosCallbackException extends Exception {
         }
     }
 
-    /**
-     * @hide
-     */
+    @VisibleForTesting
     public QosCallbackException(@NonNull final String message) {
         super(message);
     }
 
-    /**
-     * @hide
-     */
+    @VisibleForTesting
     public QosCallbackException(@NonNull final Throwable cause) {
         super(cause);
     }

framework/src/android/net/SocketLocalAddressChangedException.java

@@ -18,6 +18,8 @@ package android.net;
 
 import android.annotation.SystemApi;
 
+import com.android.internal.annotations.VisibleForTesting;
+
 /**
  * Thrown when the local address of the socket has changed.
  *
@@ -25,7 +27,7 @@ import android.annotation.SystemApi;
  */
 @SystemApi
 public class SocketLocalAddressChangedException extends Exception {
-    /** @hide */
+    @VisibleForTesting
     public SocketLocalAddressChangedException() {
         super("The local address of the socket changed");
     }

framework/src/android/net/SocketNotBoundException.java

@@ -18,6 +18,8 @@ package android.net;
 
 import android.annotation.SystemApi;
 
+import com.android.internal.annotations.VisibleForTesting;
+
 /**
  * Thrown when a previously bound socket becomes unbound.
  *
@@ -25,7 +27,7 @@ import android.annotation.SystemApi;
  */
 @SystemApi
 public class SocketNotBoundException extends Exception {
-    /** @hide */
+    @VisibleForTesting
     public SocketNotBoundException() {
         super("The socket is unbound");
     }