add vertx-specific HttpBearerAuth template and samples

modules/openapi-generator/src/main/resources/Java/libraries/vertx/auth/HttpBearerAuth.mustache

@@ -0,0 +1,39 @@
+{{>licenseInfo}}
+
+package {{invokerPackage}}.auth;
+
+import {{invokerPackage}}.Pair;
+import io.vertx.core.MultiMap;
+import java.util.Base64;
+import java.nio.charset.StandardCharsets;
+import java.util.List;
+
+{{>generatedAnnotation}}
+public class HttpBearerAuth implements Authentication {
+  private final String scheme;
+  private String bearerToken;
+
+  public HttpBearerAuth(String scheme) {
+    this.scheme = scheme;
+  }
+
+  public String getBearerToken() {
+    return bearerToken;
+  }
+
+  public void setBearerToken(String bearerToken) {
+    this.bearerToken = bearerToken;
+  }
+
+  @Override
+  public void applyToParams(List<Pair> queryParams, MultiMap headerParams) {
+    if (bearerToken == null) {
+      return;
+    }
+    headerParams.add("Authorization", (scheme != null ? upperCaseBearer(scheme) + " " : "") + bearerToken);
+  }
+
+  private static String upperCaseBearer(String scheme) {
+    return ("bearer".equalsIgnoreCase(scheme)) ? "Bearer" : scheme;
+  }
+}

samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/auth/HttpBearerAuth.java

@@ -14,8 +14,9 @@
 package org.openapitools.client.auth;
 
 import org.openapitools.client.Pair;
-
-import java.util.Map;
+import io.vertx.core.MultiMap;
+import java.util.Base64;
+import java.nio.charset.StandardCharsets;
 import java.util.List;
 
 
@@ -27,27 +28,20 @@ public HttpBearerAuth(String scheme) {
     this.scheme = scheme;
   }
 
-  /**
-   * Gets the token, which together with the scheme, will be sent as the value of the Authorization header.
-   */
   public String getBearerToken() {
     return bearerToken;
   }
 
-  /**
-   * Sets the token, which together with the scheme, will be sent as the value of the Authorization header.
-   */
   public void setBearerToken(String bearerToken) {
     this.bearerToken = bearerToken;
   }
 
   @Override
-  public void applyToParams(List<Pair> queryParams, Map<String, String> headerParams) {
-    if(bearerToken == null) {
+  public void applyToParams(List<Pair> queryParams, MultiMap headerParams) {
+    if (bearerToken == null) {
       return;
     }
-
-    headerParams.put("Authorization", (scheme != null ? upperCaseBearer(scheme) + " " : "") + bearerToken);
+    headerParams.add("Authorization", (scheme != null ? upperCaseBearer(scheme) + " " : "") + bearerToken);
   }
 
   private static String upperCaseBearer(String scheme) {