From 500d1ce01cb494a68fafb0fcf8e565971b95120d Mon Sep 17 00:00:00 2001
From: Harshavardhana <harsha@minio.io>
Date: Tue, 7 Dec 2021 15:45:15 -0800
Subject: [PATCH] remove EOLed support this library supports from go1.16

---
 .github/workflows/go-windows.yml              | 2 +-
 .github/workflows/go.yml                      | 2 +-
 CONTRIBUTING.md                               | 1 -
 README.md                                     | 3 +--
 examples/minio/getbucketreplicationmetrics.go | 1 +
 examples/minio/listen-notification.go         | 1 +
 examples/minio/listenbucketnotification.go    | 1 +
 examples/minio/putobjectsnowball.go           | 1 +
 examples/s3/bucketexists.go                   | 1 +
 examples/s3/composeobject.go                  | 1 +
 examples/s3/copyobject-with-new-tags.go       | 1 +
 examples/s3/copyobject.go                     | 1 +
 examples/s3/enableversioning.go               | 1 +
 examples/s3/fgetobject.go                     | 1 +
 examples/s3/fputencrypted-object.go           | 1 +
 examples/s3/fputobject.go                     | 1 +
 examples/s3/get-encrypted-object.go           | 1 +
 examples/s3/getbucketencryption.go            | 1 +
 examples/s3/getbucketlifecycle.go             | 1 +
 examples/s3/getbucketnotification.go          | 1 +
 examples/s3/getbucketpolicy.go                | 1 +
 examples/s3/getbucketreplication.go           | 1 +
 examples/s3/getbuckettagging.go               | 1 +
 examples/s3/getbucketversioning.go            | 1 +
 examples/s3/getobject-client-encryption.go    | 1 +
 examples/s3/getobject.go                      | 1 +
 examples/s3/getobjectacl.go                   | 1 +
 examples/s3/getobjectlegalhold.go             | 1 +
 examples/s3/getobjectlockconfig.go            | 1 +
 examples/s3/getobjectretention.go             | 1 +
 examples/s3/getobjecttagging.go               | 1 +
 examples/s3/healthcheck.go                    | 1 +
 examples/s3/listbuckets.go                    | 1 +
 examples/s3/listincompleteuploads.go          | 1 +
 examples/s3/listobjects-N.go                  | 1 +
 examples/s3/listobjects.go                    | 1 +
 examples/s3/listobjectsV2.go                  | 1 +
 examples/s3/listobjectsV2WithMetadata.go      | 1 +
 examples/s3/listobjectversions.go             | 1 +
 examples/s3/makebucket.go                     | 1 +
 examples/s3/presignedgetobject.go             | 1 +
 examples/s3/presignedheadobject.go            | 1 +
 examples/s3/presignedpostpolicy.go            | 1 +
 examples/s3/presignedputobject.go             | 1 +
 examples/s3/put-encrypted-object.go           | 1 +
 examples/s3/putobject-client-encryption.go    | 1 +
 examples/s3/putobject-getobject-sse.go        | 1 +
 examples/s3/putobject-progress.go             | 1 +
 examples/s3/putobject-s3-accelerate.go        | 1 +
 examples/s3/putobject-streaming.go            | 1 +
 examples/s3/putobject-with-tags.go            | 1 +
 examples/s3/putobject.go                      | 1 +
 examples/s3/putobjectlegalhold.go             | 1 +
 examples/s3/putobjectretention.go             | 1 +
 examples/s3/putobjecttagging.go               | 1 +
 examples/s3/removeallbucketnotification.go    | 1 +
 examples/s3/removebucket.go                   | 1 +
 examples/s3/removebucketencryption.go         | 1 +
 examples/s3/removebucketreplication.go        | 1 +
 examples/s3/removebuckettagging.go            | 1 +
 examples/s3/removeincompleteupload.go         | 1 +
 examples/s3/removeobject.go                   | 1 +
 examples/s3/removeobjects.go                  | 1 +
 examples/s3/removeobjecttagging.go            | 1 +
 examples/s3/restoreobject-select.go           | 1 +
 examples/s3/restoreobject.go                  | 1 +
 examples/s3/selectobject.go                   | 1 +
 examples/s3/setbucketencryption.go            | 1 +
 examples/s3/setbucketlifecycle.go             | 1 +
 examples/s3/setbucketnotification.go          | 1 +
 examples/s3/setbucketpolicy.go                | 1 +
 examples/s3/setbucketreplication.go           | 1 +
 examples/s3/setbuckettagging.go               | 1 +
 examples/s3/setobjectlockconfig.go            | 1 +
 examples/s3/statobject.go                     | 1 +
 examples/s3/suspendversioning.go              | 1 +
 functional_tests.go                           | 1 +
 go.mod                                        | 4 +---
 go.sum                                        | 7 -------
 pkg/credentials/iam_aws_test.go               | 1 +
 pkg/policy/bucket-policy_test.go              | 1 +
 transport.go                                  | 1 +
 82 files changed, 80 insertions(+), 15 deletions(-)

diff --git a/.github/workflows/go-windows.yml b/.github/workflows/go-windows.yml
index 53e565ce3..3d51ea2aa 100644
--- a/.github/workflows/go-windows.yml
+++ b/.github/workflows/go-windows.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        go-version: [1.15.x, 1.16.x, 1.17.x]
+        go-version: [1.16.x, 1.17.x]
         os: [windows-latest]
     steps:
       - name: Set up Go ${{ matrix.go-version }} on ${{ matrix.os }}
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index cec537250..fd7c69eb0 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        go-version: [1.15.x, 1.16.x, 1.17.x]
+        go-version: [1.16.x, 1.17.x]
         os: [ubuntu-latest]
     steps:
       - name: Set up Go ${{ matrix.go-version }} on ${{ matrix.os }}
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 8b1ee86c6..24522ef75 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,4 +1,3 @@
-
 ###  Developer Guidelines
 
 ``minio-go`` welcomes your contribution. To make the process as seamless as possible, we ask for the following:
diff --git a/README.md b/README.md
index 3ba174f46..211dd5e8c 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ This document assumes that you have a working [Go development environment](https
 
 ## Download from Github
 ```sh
-GO111MODULE=on go get github.com/minio/minio-go/v7
+go get github.com/minio/minio-go/v7
 ```
 
 ## Initialize MinIO Client
@@ -115,7 +115,6 @@ func main() {
 
 ### Run FileUploader
 ```sh
-export GO111MODULE=on
 go run file-uploader.go
 2016/08/13 17:03:28 Successfully created mymusic
 2016/08/13 17:03:40 Successfully uploaded golden-oldies.zip of size 16253413
diff --git a/examples/minio/getbucketreplicationmetrics.go b/examples/minio/getbucketreplicationmetrics.go
index 6b50f1b75..1f8b47ed6 100644
--- a/examples/minio/getbucketreplicationmetrics.go
+++ b/examples/minio/getbucketreplicationmetrics.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/minio/listen-notification.go b/examples/minio/listen-notification.go
index 260ac47a8..9ed0ae54c 100644
--- a/examples/minio/listen-notification.go
+++ b/examples/minio/listen-notification.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/minio/listenbucketnotification.go b/examples/minio/listenbucketnotification.go
index a4b95f823..abc5b0451 100644
--- a/examples/minio/listenbucketnotification.go
+++ b/examples/minio/listenbucketnotification.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/minio/putobjectsnowball.go b/examples/minio/putobjectsnowball.go
index 467809b53..4b8a6d7a3 100644
--- a/examples/minio/putobjectsnowball.go
+++ b/examples/minio/putobjectsnowball.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/bucketexists.go b/examples/s3/bucketexists.go
index 1ab3a8b66..0cee0c518 100644
--- a/examples/s3/bucketexists.go
+++ b/examples/s3/bucketexists.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/composeobject.go b/examples/s3/composeobject.go
index af9b2b38f..6695c2436 100644
--- a/examples/s3/composeobject.go
+++ b/examples/s3/composeobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/copyobject-with-new-tags.go b/examples/s3/copyobject-with-new-tags.go
index 297afa554..aa091c611 100644
--- a/examples/s3/copyobject-with-new-tags.go
+++ b/examples/s3/copyobject-with-new-tags.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/copyobject.go b/examples/s3/copyobject.go
index 73e38b3b7..cd8143f8d 100644
--- a/examples/s3/copyobject.go
+++ b/examples/s3/copyobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/enableversioning.go b/examples/s3/enableversioning.go
index e89cb22a6..20a597737 100644
--- a/examples/s3/enableversioning.go
+++ b/examples/s3/enableversioning.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/fgetobject.go b/examples/s3/fgetobject.go
index 31541e7b8..f0ebbc53a 100644
--- a/examples/s3/fgetobject.go
+++ b/examples/s3/fgetobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/fputencrypted-object.go b/examples/s3/fputencrypted-object.go
index 62a441ccb..e3f2338bc 100644
--- a/examples/s3/fputencrypted-object.go
+++ b/examples/s3/fputencrypted-object.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/fputobject.go b/examples/s3/fputobject.go
index 68ba5ff5c..5ae9d510b 100644
--- a/examples/s3/fputobject.go
+++ b/examples/s3/fputobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/get-encrypted-object.go b/examples/s3/get-encrypted-object.go
index e558efc06..017509798 100644
--- a/examples/s3/get-encrypted-object.go
+++ b/examples/s3/get-encrypted-object.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getbucketencryption.go b/examples/s3/getbucketencryption.go
index 4c1f687b7..b630d4f3b 100644
--- a/examples/s3/getbucketencryption.go
+++ b/examples/s3/getbucketencryption.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getbucketlifecycle.go b/examples/s3/getbucketlifecycle.go
index c98e40381..6303d5a5e 100644
--- a/examples/s3/getbucketlifecycle.go
+++ b/examples/s3/getbucketlifecycle.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getbucketnotification.go b/examples/s3/getbucketnotification.go
index e756bdcfe..33f351f04 100644
--- a/examples/s3/getbucketnotification.go
+++ b/examples/s3/getbucketnotification.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getbucketpolicy.go b/examples/s3/getbucketpolicy.go
index 3345cca5f..bf15ae352 100644
--- a/examples/s3/getbucketpolicy.go
+++ b/examples/s3/getbucketpolicy.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getbucketreplication.go b/examples/s3/getbucketreplication.go
index 59b35cbab..fd4b6d063 100644
--- a/examples/s3/getbucketreplication.go
+++ b/examples/s3/getbucketreplication.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getbuckettagging.go b/examples/s3/getbuckettagging.go
index f5aec9bf9..4c09bef30 100644
--- a/examples/s3/getbuckettagging.go
+++ b/examples/s3/getbuckettagging.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getbucketversioning.go b/examples/s3/getbucketversioning.go
index 5fbe2da56..121554a51 100644
--- a/examples/s3/getbucketversioning.go
+++ b/examples/s3/getbucketversioning.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getobject-client-encryption.go b/examples/s3/getobject-client-encryption.go
index 871cda386..8fa20e25e 100644
--- a/examples/s3/getobject-client-encryption.go
+++ b/examples/s3/getobject-client-encryption.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getobject.go b/examples/s3/getobject.go
index 133c90a3c..a0e90b658 100644
--- a/examples/s3/getobject.go
+++ b/examples/s3/getobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getobjectacl.go b/examples/s3/getobjectacl.go
index 6ddee39e6..77c4f0b24 100644
--- a/examples/s3/getobjectacl.go
+++ b/examples/s3/getobjectacl.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getobjectlegalhold.go b/examples/s3/getobjectlegalhold.go
index 6ab2fe008..a514389a7 100644
--- a/examples/s3/getobjectlegalhold.go
+++ b/examples/s3/getobjectlegalhold.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getobjectlockconfig.go b/examples/s3/getobjectlockconfig.go
index 17569b7c8..a13e93968 100644
--- a/examples/s3/getobjectlockconfig.go
+++ b/examples/s3/getobjectlockconfig.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getobjectretention.go b/examples/s3/getobjectretention.go
index aabfb05e3..55e7011aa 100644
--- a/examples/s3/getobjectretention.go
+++ b/examples/s3/getobjectretention.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/getobjecttagging.go b/examples/s3/getobjecttagging.go
index 81ab377e6..65e82a238 100644
--- a/examples/s3/getobjecttagging.go
+++ b/examples/s3/getobjecttagging.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/healthcheck.go b/examples/s3/healthcheck.go
index 94b833d9d..ffeae7de1 100644
--- a/examples/s3/healthcheck.go
+++ b/examples/s3/healthcheck.go
@@ -1,3 +1,4 @@
+//go:build ignore
 // +build ignore
 
 /*
diff --git a/examples/s3/listbuckets.go b/examples/s3/listbuckets.go
index d1ac603de..d438592ec 100644
--- a/examples/s3/listbuckets.go
+++ b/examples/s3/listbuckets.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/listincompleteuploads.go b/examples/s3/listincompleteuploads.go
index edb1c2fd4..7c0360fe0 100644
--- a/examples/s3/listincompleteuploads.go
+++ b/examples/s3/listincompleteuploads.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/listobjects-N.go b/examples/s3/listobjects-N.go
index e534b78cf..1dfaaf019 100644
--- a/examples/s3/listobjects-N.go
+++ b/examples/s3/listobjects-N.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/listobjects.go b/examples/s3/listobjects.go
index 9f07bd650..4b46b0ab0 100644
--- a/examples/s3/listobjects.go
+++ b/examples/s3/listobjects.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/listobjectsV2.go b/examples/s3/listobjectsV2.go
index f904619a6..1988436cb 100644
--- a/examples/s3/listobjectsV2.go
+++ b/examples/s3/listobjectsV2.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/listobjectsV2WithMetadata.go b/examples/s3/listobjectsV2WithMetadata.go
index 119e9d845..94d1730e0 100644
--- a/examples/s3/listobjectsV2WithMetadata.go
+++ b/examples/s3/listobjectsV2WithMetadata.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/listobjectversions.go b/examples/s3/listobjectversions.go
index b14aa76ad..894b3fa62 100644
--- a/examples/s3/listobjectversions.go
+++ b/examples/s3/listobjectversions.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/makebucket.go b/examples/s3/makebucket.go
index 218e9df39..82e64f056 100644
--- a/examples/s3/makebucket.go
+++ b/examples/s3/makebucket.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/presignedgetobject.go b/examples/s3/presignedgetobject.go
index ef5a90812..a4b5a4570 100644
--- a/examples/s3/presignedgetobject.go
+++ b/examples/s3/presignedgetobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/presignedheadobject.go b/examples/s3/presignedheadobject.go
index 3c59cd56a..d710701be 100644
--- a/examples/s3/presignedheadobject.go
+++ b/examples/s3/presignedheadobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/presignedpostpolicy.go b/examples/s3/presignedpostpolicy.go
index 3c9c51dba..2ce0ab6ba 100644
--- a/examples/s3/presignedpostpolicy.go
+++ b/examples/s3/presignedpostpolicy.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/presignedputobject.go b/examples/s3/presignedputobject.go
index fc29c8a6d..4459a5954 100644
--- a/examples/s3/presignedputobject.go
+++ b/examples/s3/presignedputobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/put-encrypted-object.go b/examples/s3/put-encrypted-object.go
index aa18bf79d..00caee122 100644
--- a/examples/s3/put-encrypted-object.go
+++ b/examples/s3/put-encrypted-object.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/putobject-client-encryption.go b/examples/s3/putobject-client-encryption.go
index ecdcd078a..df454e761 100644
--- a/examples/s3/putobject-client-encryption.go
+++ b/examples/s3/putobject-client-encryption.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/putobject-getobject-sse.go b/examples/s3/putobject-getobject-sse.go
index 4df33aca6..d334b32ec 100644
--- a/examples/s3/putobject-getobject-sse.go
+++ b/examples/s3/putobject-getobject-sse.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/putobject-progress.go b/examples/s3/putobject-progress.go
index fa2cd761f..d3e6aa0d2 100644
--- a/examples/s3/putobject-progress.go
+++ b/examples/s3/putobject-progress.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/putobject-s3-accelerate.go b/examples/s3/putobject-s3-accelerate.go
index 6d51d9600..7967af7e3 100644
--- a/examples/s3/putobject-s3-accelerate.go
+++ b/examples/s3/putobject-s3-accelerate.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/putobject-streaming.go b/examples/s3/putobject-streaming.go
index 4e79b7156..631dbd85c 100644
--- a/examples/s3/putobject-streaming.go
+++ b/examples/s3/putobject-streaming.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/putobject-with-tags.go b/examples/s3/putobject-with-tags.go
index d39e9a93b..1606b9805 100644
--- a/examples/s3/putobject-with-tags.go
+++ b/examples/s3/putobject-with-tags.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/putobject.go b/examples/s3/putobject.go
index 7f94e86ae..1d73a1153 100644
--- a/examples/s3/putobject.go
+++ b/examples/s3/putobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/putobjectlegalhold.go b/examples/s3/putobjectlegalhold.go
index 828bad3f3..752850682 100644
--- a/examples/s3/putobjectlegalhold.go
+++ b/examples/s3/putobjectlegalhold.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/putobjectretention.go b/examples/s3/putobjectretention.go
index 7a62ad09f..c39fa2c3b 100644
--- a/examples/s3/putobjectretention.go
+++ b/examples/s3/putobjectretention.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/putobjecttagging.go b/examples/s3/putobjecttagging.go
index 806a25c57..d39ed9138 100644
--- a/examples/s3/putobjecttagging.go
+++ b/examples/s3/putobjecttagging.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/removeallbucketnotification.go b/examples/s3/removeallbucketnotification.go
index af8399828..7eb8fc5f3 100644
--- a/examples/s3/removeallbucketnotification.go
+++ b/examples/s3/removeallbucketnotification.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/removebucket.go b/examples/s3/removebucket.go
index 02f3af1f1..de1bfa344 100644
--- a/examples/s3/removebucket.go
+++ b/examples/s3/removebucket.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/removebucketencryption.go b/examples/s3/removebucketencryption.go
index e0eafe1d8..52e718024 100644
--- a/examples/s3/removebucketencryption.go
+++ b/examples/s3/removebucketencryption.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/removebucketreplication.go b/examples/s3/removebucketreplication.go
index 3e0b3c421..b0ba6e880 100644
--- a/examples/s3/removebucketreplication.go
+++ b/examples/s3/removebucketreplication.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/removebuckettagging.go b/examples/s3/removebuckettagging.go
index 713dcce8b..5e47a25cc 100644
--- a/examples/s3/removebuckettagging.go
+++ b/examples/s3/removebuckettagging.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/removeincompleteupload.go b/examples/s3/removeincompleteupload.go
index 02c785d6e..a93ee48f2 100644
--- a/examples/s3/removeincompleteupload.go
+++ b/examples/s3/removeincompleteupload.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/removeobject.go b/examples/s3/removeobject.go
index ae8c42cb5..f1d01d343 100644
--- a/examples/s3/removeobject.go
+++ b/examples/s3/removeobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/removeobjects.go b/examples/s3/removeobjects.go
index 26ce97879..be9818a6b 100644
--- a/examples/s3/removeobjects.go
+++ b/examples/s3/removeobjects.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/removeobjecttagging.go b/examples/s3/removeobjecttagging.go
index bd0b29151..46b7c7cf4 100644
--- a/examples/s3/removeobjecttagging.go
+++ b/examples/s3/removeobjecttagging.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/restoreobject-select.go b/examples/s3/restoreobject-select.go
index 55f5646b2..bbb37cefd 100644
--- a/examples/s3/restoreobject-select.go
+++ b/examples/s3/restoreobject-select.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/restoreobject.go b/examples/s3/restoreobject.go
index ada384024..82f24c0bc 100644
--- a/examples/s3/restoreobject.go
+++ b/examples/s3/restoreobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/selectobject.go b/examples/s3/selectobject.go
index 37106e051..d96447a95 100644
--- a/examples/s3/selectobject.go
+++ b/examples/s3/selectobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/setbucketencryption.go b/examples/s3/setbucketencryption.go
index 9732744d5..1d34b7e7a 100644
--- a/examples/s3/setbucketencryption.go
+++ b/examples/s3/setbucketencryption.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/setbucketlifecycle.go b/examples/s3/setbucketlifecycle.go
index 0284b9e97..a363d5cde 100644
--- a/examples/s3/setbucketlifecycle.go
+++ b/examples/s3/setbucketlifecycle.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/setbucketnotification.go b/examples/s3/setbucketnotification.go
index 9b83b4480..3a6a7468e 100644
--- a/examples/s3/setbucketnotification.go
+++ b/examples/s3/setbucketnotification.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/setbucketpolicy.go b/examples/s3/setbucketpolicy.go
index 964efe5d7..2abb3d530 100644
--- a/examples/s3/setbucketpolicy.go
+++ b/examples/s3/setbucketpolicy.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/setbucketreplication.go b/examples/s3/setbucketreplication.go
index 1569336fc..94640a0c3 100644
--- a/examples/s3/setbucketreplication.go
+++ b/examples/s3/setbucketreplication.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/setbuckettagging.go b/examples/s3/setbuckettagging.go
index 7fb4817de..42a29b228 100644
--- a/examples/s3/setbuckettagging.go
+++ b/examples/s3/setbuckettagging.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/setobjectlockconfig.go b/examples/s3/setobjectlockconfig.go
index 08fc9270f..f02524ec9 100644
--- a/examples/s3/setobjectlockconfig.go
+++ b/examples/s3/setobjectlockconfig.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/statobject.go b/examples/s3/statobject.go
index 253c3a204..b8a0c913f 100644
--- a/examples/s3/statobject.go
+++ b/examples/s3/statobject.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/examples/s3/suspendversioning.go b/examples/s3/suspendversioning.go
index b0d0bcf60..77f7dbbbe 100644
--- a/examples/s3/suspendversioning.go
+++ b/examples/s3/suspendversioning.go
@@ -1,3 +1,4 @@
+//go:build example
 // +build example
 
 /*
diff --git a/functional_tests.go b/functional_tests.go
index b8950dd27..49c781f60 100644
--- a/functional_tests.go
+++ b/functional_tests.go
@@ -1,3 +1,4 @@
+//go:build mint
 // +build mint
 
 /*
diff --git a/go.mod b/go.mod
index e3d93ce2e..c07ec5497 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/minio/minio-go/v7
 
-go 1.15
+go 1.16
 
 require (
 	github.com/dustin/go-humanize v1.0.0
@@ -8,7 +8,6 @@ require (
 	github.com/json-iterator/go v1.1.10
 	github.com/klauspost/compress v1.13.5
 	github.com/klauspost/cpuid v1.3.1 // indirect
-	github.com/kr/pretty v0.1.0 // indirect
 	github.com/minio/md5-simd v1.1.0
 	github.com/minio/sha256-simd v0.1.1
 	github.com/mitchellh/go-homedir v1.1.0
@@ -22,7 +21,6 @@ require (
 	golang.org/x/net v0.0.0-20200707034311-ab3426394381
 	golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae // indirect
 	golang.org/x/text v0.3.3 // indirect
-	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
 	gopkg.in/ini.v1 v1.57.0
 	gopkg.in/yaml.v2 v2.2.8 // indirect
 )
diff --git a/go.sum b/go.sum
index 03843f453..89a282975 100644
--- a/go.sum
+++ b/go.sum
@@ -17,11 +17,6 @@ github.com/klauspost/compress v1.13.5/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47e
 github.com/klauspost/cpuid v1.2.3/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
 github.com/klauspost/cpuid v1.3.1 h1:5JNjFYYQrZeKRJ0734q51WCEEn2huer72Dc7K+R/b6s=
 github.com/klauspost/cpuid v1.3.1/go.mod h1:bYW4mA6ZgKPob1/Dlai2LviZJO7KGI3uoWLd42rAQw4=
-github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
-github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/minio/md5-simd v1.1.0 h1:QPfiOqlZH+Cj9teu0t9b1nTBfPbyTl16Of5MeuShdK4=
 github.com/minio/md5-simd v1.1.0/go.mod h1:XpBqgZULrMYD3R+M28PcmP0CkI7PEMzB3U77ZrKZ0Gw=
 github.com/minio/sha256-simd v0.1.1 h1:5QHSlgo3nt5yKOJrC7W8w7X+NFl8cMPZm96iu8kKUJU=
@@ -70,8 +65,6 @@ golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/ini.v1 v1.57.0 h1:9unxIsFcTt4I55uWluz+UmL95q4kdJ0buvQ1ZIqVQww=
 gopkg.in/ini.v1 v1.57.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
diff --git a/pkg/credentials/iam_aws_test.go b/pkg/credentials/iam_aws_test.go
index 686721dc2..9092c01b7 100644
--- a/pkg/credentials/iam_aws_test.go
+++ b/pkg/credentials/iam_aws_test.go
@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 /*
diff --git a/pkg/policy/bucket-policy_test.go b/pkg/policy/bucket-policy_test.go
index 6848dbd01..8882d0366 100644
--- a/pkg/policy/bucket-policy_test.go
+++ b/pkg/policy/bucket-policy_test.go
@@ -18,6 +18,7 @@
 package policy
 
 import (
+	"encoding/json"
 	"fmt"
 	"reflect"
 	"testing"
diff --git a/transport.go b/transport.go
index d5ad15b8b..a88477b73 100644
--- a/transport.go
+++ b/transport.go
@@ -1,3 +1,4 @@
+//go:build go1.7 || go1.8
 // +build go1.7 go1.8
 
 /*