Add dependency licenses check (#3221)

* Add dependency licenses check 

Jenkinsfile

@@ -63,6 +63,13 @@ pipeline {
                                 sh './mvnw javadoc:javadoc -Dmaven.test.skip=true'
                             }
                         }
+
+                        stage('Check Dependencies Licenses') {
+                            steps {
+                                sh 'tar -zxf dist/apache-skywalking-apm-bin.tar.gz -C dist'
+                                sh 'tools/dependencies/check-LICENSE.sh'
+                            }
+                        }
                     }
 
                     post {

apm-dist/release-docs/LICENSE

@@ -271,7 +271,7 @@ The text of each license is the standard Apache 2.0 license.
     Apache: commons-io 2.4: https://github.com/apache/commons-io, Apache 2.0
     Apache: commons-compress 1.18: https://github.com/apache/commons-compress, Apache 2.0
     Apache: tomcat 8.5.27: https://github.com/apache/tomcat/tree/trunk, Apache 2.0
-    Apache: freemaker 2.3.28: https://github.com/apache/freemarker, Apache 2.0
+    Apache: freemarker 2.3.28: https://github.com/apache/freemarker, Apache 2.0
     netty 5.5.0: https://github.com/netty/netty/blob/4.1/LICENSE.txt, Apache 2.0
     annotations 13.0: http://www.jetbrains.org, Apache 2.0
     compiler 0.9.3: https://github.com/spullara/mustache.java, Apache 2.0

docs/en/guides/README.md

@@ -116,6 +116,21 @@ static resources and send GraphQL query requests to backend.
 - [Legacy UI repository](https://github.com/apache/skywalking-ui) is still there, but not included
 in SkyWalking release, after 6.0.0-GA.
 
+### OAP backend dependency management
+> This section is only applicable to the dependencies of the backend module
+
+Being one of the Top Level Projects of The Apache Software Foundation (ASF),
+SkyWalking is supposed to follow the [ASF 3RD PARTY LICENSE POLICY](https://apache.org/legal/resolved.html),
+so if you're adding new dependencies to the project, you're responsible to check the newly-added dependencies
+won't break the policy, and add their LICENSE's and NOTICES's to the project.
+
+We have a [simple script](../../../tools/dependencies/check-LICENSE.sh) to help you make sure that you didn't
+miss any newly-added dependency:
+- Build a distribution package and unzip/untar it to folder `dist`.
+- Run the script in the root directory, it will print out all newly-added dependencies.
+- Check the LICENSE's and NOTICE's of those dependencies, if they can be included in an ASF project, add them in the `apm-dist/release-docs/{LICENSE,NOTICE}` file.
+- Add those dependencies' names to the `tools/dependencies/known-oap-backend-dependencies.txt` file (**alphabetical order**), the next run of `check-LICENSE.sh` should pass. 
+
 ## For release
 [Apache Release Guide](How-to-release.md) introduces to the committer team about doing official Apache version release, to avoid 
 breaking any Apache rule. Apache license allows everyone to redistribute if you keep our licenses and NOTICE

oap-server/oal-grammar/pom.xml

@@ -30,7 +30,7 @@
     <dependencies>
         <dependency>
             <groupId>org.antlr</groupId>
-            <artifactId>antlr4</artifactId>
+            <artifactId>antlr4-runtime</artifactId>
         </dependency>
     </dependencies>
 
@@ -39,7 +39,7 @@
             <plugin>
                 <groupId>org.antlr</groupId>
                 <artifactId>antlr4-maven-plugin</artifactId>
-                <version>4.7.1</version>
+                <version>${antlr.version}</version>
                 <executions>
                     <execution>
                         <id>antlr</id>

oap-server/oal-rt/pom.xml

@@ -40,7 +40,7 @@
         </dependency>
         <dependency>
             <groupId>org.antlr</groupId>
-            <artifactId>antlr4</artifactId>
+            <artifactId>antlr4-runtime</artifactId>
         </dependency>
         <dependency>
             <groupId>org.freemarker</groupId>

oap-server/pom.xml

@@ -481,7 +481,7 @@
 
             <dependency>
                 <groupId>org.antlr</groupId>
-                <artifactId>antlr4</artifactId>
+                <artifactId>antlr4-runtime</artifactId>
                 <version>${antlr.version}</version>
             </dependency>
             <dependency>

oap-server/server-starter/src/main/resources/official_analysis.oal

@@ -113,4 +113,4 @@ envoy_parent_connections_used = from(EnvoyInstanceMetric.value).filter(metricNam
 // disable(endpoint_relation_server_side);
 // disable(top_n_database_statement);
 // disable(zipkin_span);
-// disable(jaeger_span);
\ No newline at end of file
+// disable(jaeger_span);

pom.xml

@@ -422,6 +422,7 @@
 
                         <!-- Maven Wrapper generated files -->
                         <exclude>.mvn/wrapper/maven-wrapper.properties</exclude>
+                        <exclude>tools/dependencies/known-oap-backend-dependencies.txt</exclude>
                     </excludes>
                 </configuration>
                 <executions>

tools/dependencies/check-LICENSE.sh

+#!/usr/bin/env bash
+
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# List all modules(jars) that belong to the SkyWalking itself, these will be ignored
+# when checking the dependency licenses
+./mvnw -Pbackend -Dexec.executable='echo' -Dexec.args='${project.artifactId}-${project.version}.jar' exec:exec -q > self-modules.txt
+
+ls dist/apache-skywalking-apm-bin/oap-libs > all-dependencies.txt
+
+# Exclude all self modules(jars) to generate all third-party dependencies
+grep -vf self-modules.txt all-dependencies.txt > third-party-dependencies.txt
+
+# Compare the third-party dependencies with known dependencies, expect that
+# all third-party dependencies are KNOWN and the exit code of the command is 0,
+# otherwise we should add its license to LICENSE file and add the dependency to known-oap-backend-dependencies.txt.
+# Unify the `sort` behaviour: here we'll sort them again in case that the behaviour of `sort` command in target OS is different from what we
+# used to sort the file `known-oap-backend-dependencies.txt`,
+# i.e. "sort the two file using the same command (and default arguments)"
+diff -w -B -U0 <(cat tools/dependencies/known-oap-backend-dependencies.txt | sort) <(cat third-party-dependencies.txt | sort)

tools/dependencies/known-oap-backend-dependencies.txt

+aggs-matrix-stats-client-6.3.2.jar
+animal-sniffer-annotations-1.17.jar
+annotations-13.0.jar
+antlr4-runtime-4.7.1.jar
+aopalliance-1.0.jar
+apollo-client-1.4.0.jar
+apollo-core-1.4.0.jar
+bcpkix-jdk15on-1.59.jar
+bcprov-ext-jdk15on-1.59.jar
+bcprov-jdk15on-1.59.jar
+builder-annotations-0.9.2.jar
+caffeine-2.6.2.jar
+client-java-4.0.0.jar
+client-java-api-4.0.0.jar
+client-java-proto-4.0.0.jar
+commons-codec-1.11.jar
+commons-compress-1.18.jar
+commons-dbcp-1.4.jar
+commons-io-2.6.jar
+commons-lang3-3.7.jar
+commons-pool-1.5.4.jar
+commons-text-1.4.jar
+consul-client-1.2.6.jar
+converter-jackson-2.3.0.jar
+curator-client-4.0.1.jar
+curator-framework-4.0.1.jar
+curator-recipes-4.0.1.jar
+curator-x-discovery-4.0.1.jar
+elasticsearch-6.3.2.jar
+elasticsearch-cli-6.3.2.jar
+elasticsearch-core-6.3.2.jar
+elasticsearch-rest-client-6.3.2.jar
+elasticsearch-rest-high-level-client-6.3.2.jar
+elasticsearch-secure-sm-6.3.2.jar
+elasticsearch-x-content-6.3.2.jar
+error_prone_annotations-2.2.0.jar
+etcd4j-2.17.0.jar
+fastjson-1.2.47.jar
+freemarker-2.3.28.jar
+graphql-java-8.0.jar
+graphql-java-tools-5.2.3.jar
+groovy-2.4.5-indy.jar
+grpc-context-1.15.1.jar
+grpc-core-1.15.1.jar
+grpc-netty-1.15.1.jar
+grpc-protobuf-1.15.1.jar
+grpc-protobuf-lite-1.15.1.jar
+grpc-stub-1.15.1.jar
+gson-2.8.1.jar
+guava-20.0.jar
+guice-4.1.0.jar
+h2-1.4.196.jar
+HdrHistogram-2.1.9.jar
+HikariCP-3.1.0.jar
+hppc-0.7.1.jar
+httpasyncclient-4.1.2.jar
+httpclient-4.5.2.jar
+httpcore-4.4.5.jar
+httpcore-nio-4.4.5.jar
+jackson-annotations-2.9.5.jar
+jackson-core-2.9.5.jar
+jackson-core-asl-1.9.13.jar
+jackson-databind-2.9.5.jar
+jackson-dataformat-cbor-2.8.10.jar
+jackson-dataformat-smile-2.8.10.jar
+jackson-dataformat-yaml-2.8.10.jar
+jackson-datatype-guava-2.9.5.jar
+jackson-datatype-jdk8-2.9.5.jar
+jackson-mapper-asl-1.9.13.jar
+jackson-module-afterburner-2.9.5.jar
+jackson-module-kotlin-2.8.8.jar
+java-dataloader-2.0.2.jar
+javassist-3.25.0-GA.jar
+javax.inject-1.jar
+javax.servlet-api-3.1.0.jar
+jcl-over-slf4j-1.7.25.jar
+jetty-http-9.4.2.v20170220.jar
+jetty-io-9.4.2.v20170220.jar
+jetty-security-9.4.2.v20170220.jar
+jetty-server-9.4.2.v20170220.jar
+jetty-servlet-9.4.2.v20170220.jar
+jetty-util-9.4.2.v20170220.jar
+jline-0.9.94.jar
+jna-4.5.1.jar
+joda-convert-1.2.jar
+joda-time-2.9.9.jar
+jopt-simple-4.6.jar
+json-flattener-0.6.0.jar
+jsr305-1.3.9.jar
+kotlin-reflect-1.1.1.jar
+kotlin-stdlib-1.1.60.jar
+log4j-1.2.16.jar
+log4j-api-2.9.0.jar
+log4j-core-2.9.0.jar
+log4j-over-slf4j-1.7.25.jar
+log4j-slf4j-impl-2.9.0.jar
+logging-interceptor-2.7.5.jar
+lucene-analyzers-common-7.3.1.jar
+lucene-backward-codecs-7.3.1.jar
+lucene-core-7.3.1.jar
+lucene-grouping-7.3.1.jar
+lucene-highlighter-7.3.1.jar
+lucene-join-7.3.1.jar
+lucene-memory-7.3.1.jar
+lucene-misc-7.3.1.jar
+lucene-queries-7.3.1.jar
+lucene-queryparser-7.3.1.jar
+lucene-sandbox-7.3.1.jar
+lucene-spatial-7.3.1.jar
+lucene-spatial-extras-7.3.1.jar
+lucene-spatial3d-7.3.1.jar
+lucene-suggest-7.3.1.jar
+minimal-json-0.9.5.jar
+nacos-api-1.0.0.jar
+nacos-client-1.0.0.jar
+nacos-common-1.0.0.jar
+netty-3.10.5.Final.jar
+netty-buffer-4.1.27.Final.jar
+netty-codec-4.1.27.Final.jar
+netty-codec-dns-4.1.27.Final.jar
+netty-codec-http-4.1.27.Final.jar
+netty-codec-http2-4.1.27.Final.jar
+netty-codec-socks-4.1.27.Final.jar
+netty-common-4.1.27.Final.jar
+netty-handler-4.1.27.Final.jar
+netty-handler-proxy-4.1.27.Final.jar
+netty-resolver-4.1.27.Final.jar
+netty-resolver-dns-4.1.27.Final.jar
+netty-tcnative-boringssl-static-2.0.7.Final.jar
+netty-transport-4.1.27.Final.jar
+okhttp-2.7.5.jar
+okhttp-3.9.0.jar
+okhttp-ws-2.7.5.jar
+okio-1.13.0.jar
+opencensus-api-0.12.3.jar
+opencensus-contrib-grpc-metrics-0.12.3.jar
+parent-join-client-6.3.2.jar
+proto-google-common-protos-1.0.0.jar
+protobuf-java-3.4.0.jar
+rank-eval-client-6.3.2.jar
+reactive-streams-1.0.2.jar
+reflectasm-1.11.7.jar
+resourcecify-annotations-0.9.2.jar
+retrofit-2.3.0.jar
+sharding-jdbc-core-2.0.3.jar
+simpleclient-0.6.0.jar
+simpleclient_common-0.6.0.jar
+simpleclient_hotspot-0.6.0.jar
+simpleclient_httpserver-0.6.0.jar
+slf4j-api-1.7.25.jar
+snakeyaml-1.18.jar
+sundr-codegen-0.9.2.jar
+sundr-core-0.9.2.jar
+swagger-annotations-1.5.12.jar
+t-digest-3.2.jar
+zipkin-2.9.1.jar
+zookeeper-3.4.10.jar