GitHub actions, README and license update & gson update (#60)

* README.md update / GitHub action

* License upgrade

* README.md - note about Ubuntu localhost

* lwm2m/pom.xml - upgrade gson to latest (2.10.1)

This resolves also the raised Dependabot issue.
- The package com.google.code.gson:gson before 2.8.9 is vulnerable to Deserialization
  of Untrusted Data via the writeReplace() method in internal classes,
  which may lead to denial of service attacks.

* pom.xml - update Mycilla & add exclusions for CI

* Remove CircleCI

Remove the whole .circleCI, we'll use GitHub actions instead.

.github/workflows/PR-check.yml

@@ -0,0 +1,58 @@
+name: PR-checker
+run-name: ${{ github.actor }} Pull Request - make all
+
+# This allows a subsequently queued workflow run to interrupt previous runs
+concurrency:
+  group: java-coap-'${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}'
+  cancel-in-progress: true
+
+on: [push]
+jobs:
+  mvn-clean-install-ci:
+    runs-on: ubuntu-22.04
+    env:
+      PDM_BINARY_ARTIFACTS_DIR: pdm-binary-artifacts    
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          java-version: "8"
+          distribution: "temurin"
+      - name: Cloning pdm-binary-artifacts
+        uses: actions/checkout@v3
+        with:
+          repository: PelionIoT/pdm-binary-artifacts
+          token: ${{ secrets.ACCESS_TOKEN }}
+          path: ${{ env.PDM_BINARY_ARTIFACTS_DIR }}
+      - name: Initializing pdm-binary-artifacts
+        run: |
+            cd $PDM_BINARY_ARTIFACTS_DIR
+            bash init.sh --force
+      - name: Check hostname
+        run: |
+          HOST=$(hostname)
+          echo "Hostname is $HOST"
+          if [ "$HOST" != "localhost" ]; then
+            echo "Changing hostname to localhost, tests will fail otherwise."
+            sudo hostname localhost
+          fi
+      - run: mvn clean install -P ci
+      - name: Publish Test Report
+        if: success() || failure()
+        uses: scacap/action-surefire-report@v1
+        with:
+          check_name: mvn clean install -P ci test report
+
+  pysh-check:
+    runs-on: ubuntu-22.04
+    steps:
+        - uses: actions/checkout@v3
+        - name: Get scripts internal...
+          run: | 
+                git config --global url."https://${{ secrets.ACCESS_TOKEN }}@github.com/".insteadOf "[email protected]:"
+                git clone [email protected]:PelionIoT/scripts-internal.git
+        - name: Run no-more-lines w pysh-check 
+          run: |
+                sudo apt install pycodestyle pydocstyle black
+                echo "." >scripts-internal/.nopyshcheck
+                scripts-internal/ci/more-lines-checker.sh ${{ github.event.repository.default_branch }} ${{ github.ref_name }} "scripts-internal/pysh-check/pysh-check.sh  --workdir ."

README.md

@@ -6,11 +6,17 @@ mbed CoAP
 [![codecov](https://codecov.io/gh/PelionIoT/java-coap/branch/master/graph/badge.svg)](https://codecov.io/gh/PelionIoT/java-coap)
 [![Known Vulnerabilities](https://snyk.io/test/github/PelionIoT/java-coap/badge.svg)](https://snyk.io/test/github/PelionIoT/java-coap)
 
+Maintenance
+-----------
+This repository is under minimal maintenance.
+There is a more actively developed version available at [https://github.com/open-coap/java-coap](https://github.com/open-coap/java-coap) - you might want to check that repository out.
+There are API differences, though.
+
 Introduction
 ------------
 
-This library makes it easy to integrate a Java SE enabled device with coap based services like [mbed Cloud](https://www.mbed.com/en/platform/cloud). 
-It can also help to emulate an embedded device for prototyping and testing purposes. 
+This library makes it easy to integrate a Java SE enabled device with CoAP based services like [Izuma Networks Device Management](https://www.izumanetworks.com). 
+It can also help to emulate an embedded device for prototyping and testing purposes.
 
 The following features are supported by the library:
 
@@ -139,6 +145,24 @@ This [example client](example-client) demonstrates how to build coap client.
 Development
 -----------
 
+### Issues with localhost on Ubuntu
+
+Ubuntu has IP addresses for localhost, `127.0.0.1` and `127.0.1.1`.
+This causes problems with CoAP packets, the request and response address does not match.
+Change both addresses to `127.0.0.1` or comment or remove the latter from `/etc/hosts` and change hostname to localhost.
+
+To check hostname:
+
+```
+    hostname
+```
+
+To change hostname to localhost:
+
+```
+    sudo hostname localhost
+```
+
 ### Build
 
     mvn clean install
@@ -151,7 +175,6 @@ Development
 
     mvn com.mycila:license-maven-plugin:format
 
-
 Contributions
 -------------
 

coap-core/pom.xml

@@ -1,7 +1,10 @@
 <!--
 
     Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+    Copyright (c) 2023 Izuma Networks. All rights reserved.
+
     SPDX-License-Identifier: Apache-2.0
+
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/CoapConstants.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/client/CoapClient.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/client/CoapClientBuilder.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/client/CoapRequestTarget.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/client/ObservationHandlerImpl.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/client/ObservationListener.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/client/RegistrationManager.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/client/SyncRequestTarget.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/exception/CoapBlockException.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/exception/CoapBlockTooLargeEntityException.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/exception/CoapCodeException.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/exception/CoapException.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/exception/CoapMessageFormatException.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/exception/CoapRequestEntityIncomplete.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/exception/CoapRequestEntityTooLarge.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/exception/CoapTimeoutException.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/exception/CoapUnknownOptionException.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at

coap-core/src/main/java/com/mbed/coap/exception/ObservationNotEstablishedException.java

@@ -1,6 +1,9 @@
-/**
+/*
  * Copyright (C) 2011-2018 ARM Limited. All rights reserved.
+ * Copyright (c) 2023 Izuma Networks. All rights reserved.
+ *
  * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at