chore: update GitHub branch references to use HEAD (#644)

CHANGELOG.md

@@ -114,7 +114,7 @@ All notable changes to this project will be documented in this file.
 
 ## [4.4.0] - 2019-05-20
 ### Added
-- [PR #500](https://github.com/sendgrid/sendgrid-java/pull/500/files): Update CONTRIBUTING.md - using gitflow workflow, development branch instead of master -- BIG thanks to [Alex](https://github.com/pushkyn)
+- [PR #500](https://github.com/sendgrid/sendgrid-java/pull/500/files): Update CONTRIBUTING.md - using gitflow workflow, development branch instead of main -- BIG thanks to [Alex](https://github.com/pushkyn)
 - [PR #521](https://github.com/sendgrid/sendgrid-java/pull/521/files): Updating prerequisites -- BIG thanks to [Rishabh](https://github.com/Rishabh04-02)
 - [PR #495](https://github.com/sendgrid/sendgrid-java/pull/495/files): Add ability to impersonate subusers -- BIG thanks to [Rohit Tarachandani](https://github.com/Rohit-T)
 - [PR #569](https://github.com/sendgrid/sendgrid-java/pull/495/files): Twilio Branding + CLA Policy Update
@@ -231,7 +231,7 @@ request.addQueryParam("limit", "1");
 ## [3.0.9] - 2016-08-24
 ### Added
 - Table of Contents in the README
-- Added a [USE_CASES.md](https://github.com/sendgrid/sendgrid-java/blob/master/USE_CASES.md) section, with the first use case example for transactional templates
+- Added a [USE_CASES.md](USE_CASES.md) section, with the first use case example for transactional templates
 
 ## [3.0.8] - 2016-08-09
 ### Fixed
@@ -250,7 +250,7 @@ request.addQueryParam("limit", "1");
 
 ## [3.0.6] - 2016-07-26
 ### Added
-- [Troubleshooting](https://github.com/sendgrid/sendgrid-python/blob/master/TROUBLESHOOTING.md) section
+- [Troubleshooting](TROUBLESHOOTING.md) section
 
 ## [3.0.5] - 2016-07-20
 ### Added

CONTRIBUTING.md

@@ -88,7 +88,7 @@ source ./sendgrid.env
 
 ##### Execute: #####
 
-See the [examples folder](https://github.com/sendgrid/sendgrid-java/tree/master/examples) to get started quickly.
+See the [examples folder](examples) to get started quickly.
 
 Check out the documentation for [Web API v3 endpoints](https://sendgrid.com/docs/API_Reference/Web_API_v3/index.html).
 
@@ -124,9 +124,9 @@ The interface to the Twilio SendGrid API.
 
 All PRs require passing tests before the PR will be reviewed.
 
-All test files are in the [`tests`](https://github.com/sendgrid/sendgrid-java/tree/master/src/test/java/com/sendgrid) directory.
+All test files are in the [`tests`](src/test/java/com/sendgrid) directory.
 
-For the purposes of contributing to this repo, please update the [`SendGridTest.java`](https://github.com/sendgrid/sendgrid-java/tree/master/src/test/java/com/sendgrid/SendGridTest.java) file with unit tests as you modify the code.
+For the purposes of contributing to this repo, please update the [`SendGridTest.java`](src/test/java/com/sendgrid/SendGridTest.java) file with unit tests as you modify the code.
 
 The integration tests require a Twilio SendGrid mock API in order to execute. We've simplified setting this up using Docker to run the tests. You will just need [Docker Desktop](https://docs.docker.com/get-docker/) and `make`.
 
@@ -196,7 +196,7 @@ Please run your code through:
    ```
 
 7. [Open a Pull Request](https://help.github.com/articles/using-pull-requests/)
-    with a clear title and description against the `master` branch. All tests must be passing before we will review the PR.
+    with a clear title and description against the `main` branch. All tests must be passing before we will review the PR.
 
 ## Code Reviews<a name="code-reviews"></a>
 If you can, please look at open PRs and review them. Give feedback and help us merge these PRs much faster! If you don't know how, GitHub has some <a href="https://help.github.com/articles/about-pull-request-reviews/">great information on how to review a Pull Request.</a>

README.md

@@ -1,6 +1,6 @@
-![SendGrid Logo](https://github.com/sendgrid/sendgrid-python/raw/master/twilio_sendgrid_logo.png)
+![SendGrid Logo](twilio_sendgrid_logo.png)
 
-[![Travis Badge](https://travis-ci.org/sendgrid/sendgrid-java.svg?branch=master)](https://travis-ci.org/sendgrid/sendgrid-java)
+[![Travis Badge](https://travis-ci.org/sendgrid/sendgrid-java.svg?branch=main)](https://travis-ci.org/sendgrid/sendgrid-java)
 [![Maven Central](https://img.shields.io/maven-central/v/com.sendgrid/sendgrid-java.svg)](http://mvnrepository.com/artifact/com.sendgrid/sendgrid-java)
 [![Email Notifications Badge](https://dx.sendgrid.com/badge/java)](https://dx.sendgrid.com/newsletter/java)
 [![Twitter Follow](https://img.shields.io/twitter/follow/sendgrid.svg?style=social&label=Follow)](https://twitter.com/sendgrid)
@@ -16,7 +16,7 @@
 
 Version 3.X.X of this library provides full support for all Twilio SendGrid [Web API v3](https://sendgrid.com/docs/API_Reference/Web_API_v3/index.html) endpoints, including the new [v3 /mail/send](https://sendgrid.com/blog/introducing-v3mailsend-sendgrids-new-mail-endpoint).
 
-This library represents the beginning of a new path for Twilio SendGrid. We want this library to be community driven and Twilio SendGrid led. We need your help to realize this goal. To help make sure we are building the right things in the right order, we ask that you create [issues](https://github.com/sendgrid/sendgrid-java/issues) and [pull requests](https://github.com/sendgrid/sendgrid-java/blob/master/CONTRIBUTING.md) or simply upvote or comment on existing issues or pull requests.
+This library represents the beginning of a new path for Twilio SendGrid. We want this library to be community driven and Twilio SendGrid led. We need your help to realize this goal. To help make sure we are building the right things in the right order, we ask that you create [issues](https://github.com/sendgrid/sendgrid-java/issues) and [pull requests](CONTRIBUTING.md) or simply upvote or comment on existing issues or pull requests.
 
 Please browse the rest of this README for further details.
 
@@ -99,7 +99,7 @@ You can just drop the jar file in. It's a fat jar - it has all the dependencies
 
 ## Hello Email
 
-The following is the minimum needed code to send an email with the [/mail/send Helper](https://github.com/sendgrid/sendgrid-java/tree/master/src/main/java/com/sendgrid/helpers) ([here](https://github.com/sendgrid/sendgrid-java/blob/master/examples/helpers/mail/Example.java#L30) is a full example):
+The following is the minimum needed code to send an email with the [/mail/send Helper](src/main/java/com/sendgrid/helpers) ([here](examples/helpers/mail/Example.java#L30) is a full example):
 
 ### With Mail Helper Class
 
@@ -132,11 +132,11 @@ public class Example {
 }
 ```
 
-The `Mail` constructor creates a [personalization object](https://sendgrid.com/docs/Classroom/Send/v3_Mail_Send/personalizations.html) for you. [Here](https://github.com/sendgrid/sendgrid-java/blob/master/examples/helpers/mail/Example.java#L221) is an example of how to add to it.
+The `Mail` constructor creates a [personalization object](https://sendgrid.com/docs/Classroom/Send/v3_Mail_Send/personalizations.html) for you. [Here](examples/helpers/mail/Example.java#L221) is an example of how to add to it.
 
 ### Without Mail Helper Class
 
-The following is the minimum needed code to send an email without the /mail/send Helper ([here](https://github.com/sendgrid/sendgrid-java/blob/master/examples/mail/mail.java#L54) is a full example):
+The following is the minimum needed code to send an email without the /mail/send Helper ([here](examples/mail/mail.java#L54) is a full example):
 
 ```java
 import com.sendgrid.*;
@@ -189,23 +189,23 @@ public class Example {
 # Usage
 
 - [Twilio SendGrid Docs](https://sendgrid.com/docs/API_Reference/Web_API_v3/index.html)
-- [Library Usage Docs](https://github.com/sendgrid/sendgrid-java/tree/master/USAGE.md)
-- [Example Code](https://github.com/sendgrid/sendgrid-java/tree/master/examples)
+- [Library Usage Docs](USAGE.md)
+- [Example Code](examples)
 - [How-to: Migration from v2 to v3](https://sendgrid.com/docs/Classroom/Send/v3_Mail_Send/how_to_migrate_from_v2_to_v3_mail_send.html)
-- [v3 Web API Mail Send Helper](https://github.com/sendgrid/sendgrid-java/tree/master/src/main/java/com/sendgrid/helpers) - build a request object payload for a v3 /mail/send API call.
+- [v3 Web API Mail Send Helper](src/main/java/com/sendgrid/helpers) - build a request object payload for a v3 /mail/send API call.
 
 
 <a name="use-cases"></a>
 # Use Cases
 
-[Examples of common API use cases](https://github.com/sendgrid/sendgrid-java/blob/master/USE_CASES.md), such as how to send an email with a transactional template.
+[Examples of common API use cases](USE_CASES.md), such as how to send an email with a transactional template.
 
 <a name="announcements"></a>
 # Announcements
 
 Please see our announcement regarding [breaking changes](https://github.com/sendgrid/sendgrid-java/issues/140). Your support is appreciated!
 
-All updates to this library are documented in our [CHANGELOG](https://github.com/sendgrid/sendgrid-java/blob/master/CHANGELOG.md) and [releases](https://github.com/sendgrid/sendgrid-java/releases). You may also subscribe to email [release notifications](https://dx.sendgrid.com/newsletter/java) for releases and breaking changes.
+All updates to this library are documented in our [CHANGELOG](CHANGELOG.md) and [releases](https://github.com/sendgrid/sendgrid-java/releases). You may also subscribe to email [release notifications](https://dx.sendgrid.com/newsletter/java) for releases and breaking changes.
 
 <a name="roadmap"></a>
 # Roadmap
@@ -215,18 +215,18 @@ If you are interested in the future direction of this project, please take a loo
 <a name="contribute"></a>
 # How to Contribute
 
-We encourage contribution to our libraries (you might even score some nifty swag), please see our [CONTRIBUTING](https://github.com/sendgrid/sendgrid-java/blob/master/CONTRIBUTING.md) guide for details.
+We encourage contribution to our libraries (you might even score some nifty swag), please see our [CONTRIBUTING](CONTRIBUTING.md) guide for details.
 
 Quick links:
 
-- [Feature Request](https://github.com/sendgrid/sendgrid-java/blob/master/CONTRIBUTING.md#feature-request)
-- [Bug Reports](https://github.com/sendgrid/sendgrid-java/blob/master/CONTRIBUTING.md#submit-a-bug-report)
-- [Improvements to the Codebase](https://github.com/sendgrid/sendgrid-java/blob/master/CONTRIBUTING.md#improvements-to-the-codebase)
+- [Feature Request](CONTRIBUTING.md#feature-request)
+- [Bug Reports](CONTRIBUTING.md#submit-a-bug-report)
+- [Improvements to the Codebase](CONTRIBUTING.md#improvements-to-the-codebase)
 
 <a name="troubleshooting"></a>
 # Troubleshooting
 
-Please see our [troubleshooting guide](https://github.com/sendgrid/sendgrid-java/blob/master/TROUBLESHOOTING.md) for common library issues.
+Please see our [troubleshooting guide](TROUBLESHOOTING.md) for common library issues.
 
 <a name="about"></a>
 # About

TROUBLESHOOTING.md

@@ -60,7 +60,7 @@ You can just drop the jar file in. It's a fat jar - it has all the dependencies
 <a name="versions"></a>
 ## Versions
 
-We follow the MAJOR.MINOR.PATCH versioning scheme as described by [SemVer.org](http://semver.org). Therefore, we recommend that you always pin (or vendor) the particular version you are working with to your code and never auto-update to the latest version. Especially when there is a MAJOR point release, since that is guaranteed to be a breaking change. Changes are documented in the [CHANGELOG](https://github.com/sendgrid/sendgrid-java/blob/master/CHANGELOG.md) and [releases](https://github.com/sendgrid/sendgrid-java/releases) section.
+We follow the MAJOR.MINOR.PATCH versioning scheme as described by [SemVer.org](http://semver.org). Therefore, we recommend that you always pin (or vendor) the particular version you are working with to your code and never auto-update to the latest version. Especially when there is a MAJOR point release, since that is guaranteed to be a breaking change. Changes are documented in the [CHANGELOG](CHANGELOG.md) and [releases](https://github.com/sendgrid/sendgrid-java/releases) section.
 
 <a name="environment"></a>
 ## Environment Variables and Your Twilio SendGrid API Key

USAGE.md

@@ -2693,7 +2693,7 @@ For more detailed information about how to use the v3 Mail Send endpoint, please
 
 ### POST /mail/send
 
-This endpoint has a helper, check it out [here](https://github.com/sendgrid/sendgrid-java/blob/master/src/main/java/com/sendgrid/helpers/README.md).
+This endpoint has a helper, check it out [here](src/main/java/com/sendgrid/helpers/README.md).
 
 ```java
   try {

USE_CASES.md

@@ -223,13 +223,13 @@ public class Example {
 <a name="domain-authentication"></a>
 # How to Setup a Domain Authentication
 
-You can find documentation for how to setup a domain authentication via the UI [here](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/) and via API [here](https://github.com/sendgrid/sendgrid-nodejs/blob/master/packages/client/USAGE.md#sender-authentication).
+You can find documentation for how to setup a domain authentication via the UI [here](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/) and via API [here](USAGE.md#sender-authentication).
 
 Find more information about all of Twilio SendGrid's authentication related documentation [here](https://sendgrid.com/docs/ui/account-and-settings/).
 
 # How to View Email Statistics
 
-You can find documentation for how to view your email statistics via the UI [here](https://app.sendgrid.com/statistics) and via API [here](https://github.com/sendgrid/sendgrid-java/blob/master/USAGE.md#stats).
+You can find documentation for how to view your email statistics via the UI [here](https://app.sendgrid.com/statistics) and via API [here](USAGE.md#stats).
 
 Alternatively, we can post events to a URL of your choice via our [Event Webhook](https://sendgrid.com/docs/API_Reference/Webhooks/event.html) about events that occur as Twilio SendGrid processes your email.
 

examples/mail/mail.java

@@ -55,7 +55,7 @@ public static void main(String[] args) throws IOException {
 // v3 Mail Send
 // POST /mail/send
 
-// This endpoint has a helper, check it out [here](https://github.com/sendgrid/sendgrid-java/blob/master/src/main/java/com/sendgrid/helpers/README.md).
+// This endpoint has a helper, check it out [here](https://github.com/sendgrid/sendgrid-java/blob/HEAD/src/main/java/com/sendgrid/helpers/README.md).
 
 public class Example {
   public static void main(String[] args) throws IOException {

pom.xml

@@ -15,7 +15,7 @@
   <licenses>
     <license>
       <name>The MIT License (MIT)</name>
-      <url>https://github.com/sendgrid/java-http-client/blob/master/LICENSE</url>
+      <url>https://github.com/sendgrid/java-http-client/blob/HEAD/LICENSE</url>
       <distribution>repo</distribution>
     </license>
   </licenses>

src/main/java/com/sendgrid/helpers/README.md

@@ -6,7 +6,7 @@
 
 # Quick Start
 
-Run the [example](https://github.com/sendgrid/sendgrid-java/tree/master/examples/mail) (make sure you have set your environment variable to include your SENDGRID_API_KEY).
+Run the [example](../../../../../../examples/mail) (make sure you have set your environment variable to include your SENDGRID_API_KEY).
 
 ```bash
 cd examples/mail
@@ -15,5 +15,5 @@ javac -classpath ../../build/libs/sendgrid-4.2.1-jar.jar:. Example.java && java
 
 ## Usage
 
-- See the [example](https://github.com/sendgrid/sendgrid-java/tree/master/examples/mail) for a complete working example.
+- See the [example](../../../../../../examples/mail) for a complete working example.
 - [Documentation](https://sendgrid.com/docs/API_Reference/Web_API_v3/Mail/index.html)