SONAR-21393 Fix article: "an" instead of "a"

server/sonar-ce/src/main/java/org/sonar/ce/httpd/HttpAction.java

@@ -26,7 +26,7 @@ import org.apache.http.protocol.HttpContext;
 import org.apache.http.protocol.HttpRequestHandler;
 
 /**
- * A Http action of the CE's HTTP server handles a request for a specified path.
+ * An Http action of the CE's HTTP server handles a request for a specified path.
  */
 public interface HttpAction extends HttpRequestHandler {
   /**

server/sonar-server-common/src/main/java/org/sonar/server/webhook/WebhookCaller.java

@@ -22,7 +22,7 @@ package org.sonar.server.webhook;
 public interface WebhookCaller {
 
   /**
-   * Call webhook by sending a HTTP(S) POST request containing
+   * Call webhook by sending an HTTP(S) POST request containing
    * the JSON payload.
    * <br/>
    * Errors are silently ignored. They don't generate logs or

server/sonar-webserver-auth/src/main/java/org/sonar/server/authentication/LogOAuthWarning.java

@@ -53,7 +53,7 @@ public class LogOAuthWarning implements Startable {
     String publicRootUrl = server.getPublicRootUrl();
     if (StringUtils.startsWithIgnoreCase(publicRootUrl, "http:")) {
       LoggerFactory.getLogger(getClass()).warn(
-        "For security reasons, OAuth authentication should use HTTPS. You should set the property 'Administration > Configuration > Server base URL' to a HTTPS URL.");
+        "For security reasons, OAuth authentication should use HTTPS. You should set the property 'Administration > Configuration > Server base URL' to an HTTPS URL.");
     }
   }
 

server/sonar-webserver-auth/src/test/java/org/sonar/server/authentication/LogOAuthWarningTest.java

@@ -47,7 +47,7 @@ public class LogOAuthWarningTest {
 
     underTest.start();
 
-    assertThat(logTester.logs(Level.WARN)).containsOnly("For security reasons, OAuth authentication should use HTTPS. You should set the property 'Administration > Configuration > Server base URL' to a HTTPS URL.");
+    assertThat(logTester.logs(Level.WARN)).containsOnly("For security reasons, OAuth authentication should use HTTPS. You should set the property 'Administration > Configuration > Server base URL' to an HTTPS URL.");
 
     underTest.stop();
   }

server/sonar-webserver-core/src/main/java/org/sonar/server/telemetry/CloudUsageDataProvider.java

@@ -135,7 +135,7 @@ public class CloudUsageDataProvider {
   }
 
   /**
-   * Create a http client to call the Kubernetes API.
+   * Create an http client to call the Kubernetes API.
    * This is based on the client creation in the official Kubernetes Java client.
    */
   private void initHttpClient() {

server/sonar-webserver-webapi/src/main/java/org/sonar/server/saml/ws/ValidationAction.java

@@ -105,7 +105,7 @@ public class ValidationAction extends HttpFilter implements SamlAction {
       .setPost(true)
       .setHandler(ServletFilterHandler.INSTANCE)
       .setDescription("Handle the callback of a SAML assertion from the identity Provider and produces " +
-        "a HTML page with all information available in the assertion.")
+        "an HTML page with all information available in the assertion.")
       .setSince("9.7");
     action.createParam("SAMLResponse")
       .setDescription("SAML assertion value")