Initalize Stream in HttpContex when GAM redirect (#910)

When GAM redirect to login o notAuthorized page httpContext must set the Stream.
This was made calling init, but this method do a lot of more things that are not necessary. Now the setStream is only callead instead.
Issue 202113

java/src/main/java/com/genexus/webpanels/GXWebObjectStub.java

@@ -118,7 +118,6 @@ protected void callExecute(String method, IHttpServletRequest req, IHttpServletR
 			}
 			else
 			{
-				init(httpContext);
 				if (IntegratedSecurityLevel() == SECURITY_GXOBJECT)
 				{
 					httpContext.doNotCompress(true);
@@ -177,6 +176,7 @@ else if (IntegratedSecurityLevel() == SECURITY_LOW)
 					GXSecurityProvider.getInstance().checksession(-2, modelContext, reqUrl, flag);
 					if(!flag[0])
 					{
+						httpContext.setStream();
 						((HttpContextWeb)httpContext).redirect(loginObjectURL, true);
 					}
 					else
@@ -196,6 +196,7 @@ else if (IntegratedSecurityLevel() == SECURITY_LOW)
 						String notAuthorizedObject = Application.getClientContext().getClientPreferences().getProperty("IntegratedSecurityNotAuthorizedWeb", "");
 						notAuthorizedObject = GXutil.getClassName(notAuthorizedObject);
 						String notAuthorizedObjectURL = URLRouter.getURLRoute(notAuthorizedObject.toLowerCase(), new String[]{}, new String[]{}, httpContext.getRequest().getContextPath(), modelContext.getPackageName());
+						httpContext.setStream();
 						if (flag[0])
 						{
 							((HttpContextWeb)httpContext).redirect(notAuthorizedObjectURL, true);