[java] Add setBearerToken method in okhttp-gson (#8200)

* Add setBearerToken method in okhttp-gson

* Update generated files

modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/ApiClient.mustache

@@ -413,6 +413,22 @@ public class ApiClient {
         return authentications.get(authName);
     }
 
+    {{#hasHttpBearerMethods}}
+        /**
+        * Helper method to set access token for the first Bearer authentication.
+        * @param bearerToken Bearer token
+        */
+    public void setBearerToken(String bearerToken) {
+        for (Authentication auth : authentications.values()) {
+            if (auth instanceof HttpBearerAuth) {
+                ((HttpBearerAuth) auth).setBearerToken(bearerToken);
+                return;
+            }
+        }
+        throw new RuntimeException("No Bearer authentication configured!");
+    }
+    {{/hasHttpBearerMethods}}
+
     /**
      * Helper method to set username for the first HTTP basic authentication.
      *

samples/client/petstore/java/okhttp-gson-dynamicOperations/src/main/java/org/openapitools/client/ApiClient.java

@@ -376,6 +376,7 @@ public class ApiClient {
         return authentications.get(authName);
     }
 
+
     /**
      * Helper method to set username for the first HTTP basic authentication.
      *

samples/client/petstore/java/okhttp-gson-parcelableModel/src/main/java/org/openapitools/client/ApiClient.java

@@ -365,6 +365,7 @@ public class ApiClient {
         return authentications.get(authName);
     }
 
+
     /**
      * Helper method to set username for the first HTTP basic authentication.
      *

samples/client/petstore/java/okhttp-gson/src/main/java/org/openapitools/client/ApiClient.java

@@ -365,6 +365,7 @@ public class ApiClient {
         return authentications.get(authName);
     }
 
+
     /**
      * Helper method to set username for the first HTTP basic authentication.
      *