build: updates to build and test with LTS JDKs

This updates to build and test with LTS JDKs, using the same project setup as zipkin and zipkin-reporter * moves off takari to normal maven wrapper, and updates all plugin versions * removes retrolambda which is incompatible with recent JDKs * ports java 6 code to java 6 syntax * test release profile with JDK 11, which is last to compile java 1.6. * adds opens configuration for old spring and grpc integration tests * moves off abandoned powermock for mockito * bytebuddy no longer supports mocking System, so had to refactor code around currentTime * updates GitHub Actions to build on first and last LTS (11, 21) * adds javadoc tests to ensure it will build prior to running deploy job Signed-off-by: Adrian Cole <adrian@tetrate.io>
openzipkin · Dec 17, 2023 · 38c7b1f · 38c7b1f
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diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
@@ -23,7 +23,7 @@ can be automatically added by running `./mvnw com.mycila:license-maven-plugin:fo
 
 ```
 /**
- * Copyright 2020 The OpenZipkin Authors
+ * Copyright 2023 The OpenZipkin Authors
  *
  * 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

diff --git a/.github/workflows/create_release.yml b/.github/workflows/create_release.yml
@@ -11,17 +11,22 @@ on:
 
 jobs:
   create_release:
-    runs-on: ubuntu-20.04  # newest available distribution, aka focal
+    runs-on: ubuntu-22.04  # newest available distribution, aka jellyfish
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           # Prevent use of implicit GitHub Actions read-only token GITHUB_TOKEN. We don't deploy on
           # the tag MAJOR.MINOR.PATCH event, but we still need to deploy the maven-release-plugin master commit.
           token: ${{ secrets.GH_TOKEN }}
-          fetch-depth: 1  # only need the base commit as license check isn't run
+          fetch-depth: 1  # only need the HEAD commit as license check isn't run
+      - name: Setup java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'  # zulu as it supports a wide version range
+          java-version: '11'  # earliest LTS and last that can compile the 1.6 release profile.
       - name: Cache local Maven repository
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}

diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
@@ -14,17 +14,22 @@ on:
 
 jobs:
   deploy:
-    runs-on: ubuntu-20.04  # newest available distribution, aka focal
+    runs-on: ubuntu-22.04  # newest available distribution, aka jellyfish
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           # Prevent use of implicit GitHub Actions read-only token GITHUB_TOKEN.
           # We push Javadocs to the gh-pages branch on commit.
           token: ${{ secrets.GH_TOKEN }}
-          fetch-depth: 0  # allow build-bin/javadoc_to_gh_pages to get the full history
+          fetch-depth: 0  # allow build-bin/idl_to_gh_pages to get the full history
+      - name: Setup java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'  # zulu as it supports a wide version range
+          java-version: '11'  # earliest LTS and last that can compile the 1.6 release profile.
       - name: Cache local Maven repository
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
@@ -15,21 +15,58 @@ on:
     paths-ignore: '**/*.md'
 
 jobs:
+  test-javadoc:
+    name: Test JavaDoc Builds
+    runs-on: ubuntu-22.04 # newest available distribution, aka jellyfish
+    if: "!contains(github.event.head_commit.message, 'maven-release-plugin')"
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # full git history for license check
+      - name: Setup java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'  # zulu as it supports a wide version range
+          java-version: '11'  # earliest LTS and last that can compile the 1.6 release profile.
+      - name: Cache local Maven repository
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-jdk-11-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: ${{ runner.os }}-jdk-11-maven-
+      - name: Build JavaDoc
+        run: ./mvnw clean javadoc:aggregate -Prelease
+
   test:
-    runs-on: ubuntu-20.04  # newest available distribution, aka focal
+    name: test (JDK ${{ matrix.java_version }})
+    runs-on: ubuntu-22.04 # newest available distribution, aka jellyfish
     if: "!contains(github.event.head_commit.message, 'maven-release-plugin')"
+    strategy:
+      fail-fast: false  # don't fail fast as sometimes failures are operating system specific
+      matrix:  # use latest available versions and be consistent on all workflows!
+        include:
+          - java_version: 11  # Last that can compile brave to 1.6
+            maven_args: -Prelease -Dgpg.skip -Dmaven.javadoc.skip=true
+          - java_version: 21  # Most recent LTS
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # full git history for license check
+      - name: Setup java
+        uses: actions/setup-java@v4
         with:
-          fetch-depth: 0  # full git history for license check
+          distribution: 'zulu'  # zulu as it supports a wide version range
+          java-version: ${{ matrix.java_version }}
       - name: Cache local Maven repository
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-          restore-keys: ${{ runner.os }}-maven-
-      # We can't cache Docker without using buildx because GH actions restricts /var/lib/docker
-      # That's ok because DOCKER_PARENT_IMAGE is always ghcr.io and local anyway.
+          key: ${{ runner.os }}-jdk-${{ matrix.java_version }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: ${{ runner.os }}-jdk-${{ matrix.java_version }}-maven-
+      # Don't attempt to cache Docker. Sensitive information can be stolen
+      # via forks, and login session ends up in ~/.docker. This is ok because
+      # we publish DOCKER_PARENT_IMAGE to ghcr.io, hence local to the runner.
       - name: Test
         run: build-bin/configure_test && build-bin/test
diff --git a/.mvn/wrapper/maven-wrapper.jar b/.mvn/wrapper/maven-wrapper.jar
diff --git a/.mvn/wrapper/maven-wrapper.properties b/.mvn/wrapper/maven-wrapper.properties
@@ -1,2 +1,18 @@
-distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
-wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar
+# 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.
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.6/apache-maven-3.9.6-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar
diff --git a/RELEASE.md b/RELEASE.md
@@ -55,11 +55,19 @@ the following:
 
 Before you do the first release of the year, move the SNAPSHOT version back and forth from whatever the current is.
 In-between, re-apply the licenses.
+
+Note: the command below is more complex than a normal project because this
+project has a bom.
 ```bash
-$ ./mvnw versions:set -DnewVersion=1.3.3-SNAPSHOT -DgenerateBackupPoms=false
-$ ./mvnw com.mycila:license-maven-plugin:format
-$ ./mvnw versions:set -DnewVersion=1.3.2-SNAPSHOT -DgenerateBackupPoms=false
-$ git commit -am"Adjusts copyright headers for this year"
+$ mvn=$PWD/mvnw
+$ for p in ./bom .; do
+ (cd $p
+ $mvn versions:set -DnewVersion=2.17.1-SNAPSHOT -DgenerateBackupPoms=false
+ $mvn -o clean install -DskipTests
+ $mvn com.mycila:license-maven-plugin:format
+ $mvn versions:set -DnewVersion=2.17.0-SNAPSHOT -DgenerateBackupPoms=false)
+ done
+$ git commit -asm"Adjusts copyright headers for this year"
 ```
 
 ## Manually releasing

diff --git a/brave-bom/pom.xml b/brave-bom/pom.xml
@@ -36,8 +36,6 @@
     <!-- use the same values in ../pom.xml -->
     <zipkin.version>2.23.2</zipkin.version>
     <zipkin-reporter.version>2.16.3</zipkin-reporter.version>
-
-    <nexus-staging-maven-plugin.version>1.6.8</nexus-staging-maven-plugin.version>
   </properties>
 
   <organization>
@@ -315,7 +313,7 @@
           <plugin>
             <groupId>org.sonatype.plugins</groupId>
             <artifactId>nexus-staging-maven-plugin</artifactId>
-            <version>${nexus-staging-maven-plugin.version}</version>
+            <version>1.6.13</version>
             <extensions>true</extensions>
             <configuration>
               <serverId>ossrh</serverId>
@@ -326,12 +324,12 @@
 
           <plugin>
             <artifactId>maven-deploy-plugin</artifactId>
-            <version>3.0.0-M1</version>
+            <version>3.1.1</version>
           </plugin>
 
           <plugin>
             <artifactId>maven-gpg-plugin</artifactId>
-            <version>1.6</version>
+            <version>3.1.0</version>
             <executions>
               <execution>
                 <id>sign-artifacts</id>

diff --git a/brave-tests/pom.xml b/brave-tests/pom.xml
@@ -27,8 +27,6 @@
 
   <properties>
     <main.basedir>${project.basedir}/..</main.basedir>
-    <main.java.version>1.8</main.java.version>
-    <main.signature.artifact>java18</main.signature.artifact>
   </properties>
 
   <dependencies>
@@ -61,15 +59,6 @@
           </archive>
         </configuration>
       </plugin>
-      <plugin>
-        <groupId>net.orfjackal.retrolambda</groupId>
-        <artifactId>retrolambda-maven-plugin</artifactId>
-        <executions>
-          <execution>
-            <phase>none</phase>
-          </execution>
-        </executions>
-      </plugin>
     </plugins>
   </build>
 </project>
diff --git a/brave-tests/src/main/java/brave/test/IntegrationTestSpanHandler.java b/brave-tests/src/main/java/brave/test/IntegrationTestSpanHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 The OpenZipkin Authors
+ * Copyright 2013-2023 The OpenZipkin Authors
  *
  * 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
@@ -128,7 +128,7 @@ public final class IntegrationTestSpanHandler extends SpanHandler implements Tes
 
   public IntegrationTestSpanHandler() {
     // OrphanTracker detects to see if it should add "brave.flushed" or not, as it is used in
-    // production some times and avoiding this could be helpful. This forces a failed match,
+    // production sometimes and avoiding this could be helpful. This forces a failed match,
     // so that we can detect orphans even when no data was added.
     MutableSpan intentionallyWrongDefaultSpan = new MutableSpan();
     intentionallyWrongDefaultSpan.tag("not", "me");

diff --git a/brave-tests/src/test/java/brave/test/IntegrationTestSpanHandlerTest.java b/brave-tests/src/test/java/brave/test/IntegrationTestSpanHandlerTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 The OpenZipkin Authors
+ * Copyright 2013-2023 The OpenZipkin Authors
  *
  * 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
@@ -45,7 +45,7 @@ public class IntegrationTestSpanHandlerTest {
     assertThatThrownBy(spanHandler::takeLocalSpan)
         .hasMessageStartingWith("Orphaned span found")
         .hasMessageContaining("brave.flush")
-        .hasMessageEndingWith("Look for code missing span.flush() or span.finish().");
+        .hasMessageContaining("Look for code missing span.flush() or span.finish().");
   }
 
   @Test public void toString_includesSpans() {

diff --git a/brave/pom.xml b/brave/pom.xml
@@ -31,8 +31,6 @@
     <module.name>brave</module.name>
 
     <main.basedir>${project.basedir}/..</main.basedir>
-    <main.java.version>1.6</main.java.version>
-    <main.signature.artifact>java16</main.signature.artifact>
 
     <!-- disable errorprone cast warning as PendingSpans internally hacks equals -->
     <errorprone.args>-Xep:EqualsUnsafeCast:OFF</errorprone.args>
@@ -61,19 +59,6 @@
       <version>0.18</version>
       <scope>test</scope>
     </dependency>
-    <!-- to mock Platform calls -->
-    <dependency>
-      <groupId>org.powermock</groupId>
-      <artifactId>powermock-module-junit4</artifactId>
-      <version>${powermock.version}</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.powermock</groupId>
-      <artifactId>powermock-api-mockito2</artifactId>
-      <version>${powermock.version}</version>
-      <scope>test</scope>
-    </dependency>
     <dependency>
       <groupId>io.opentracing</groupId>
       <artifactId>opentracing-api</artifactId>
@@ -136,4 +121,40 @@
       </plugin>
     </plugins>
   </build>
+
+  <profiles>
+    <profile>
+      <id>release</id>
+      <properties>
+        <!-- The brave jar needs to be Java 1.6 bytecode -->
+        <main.java.version>1.6</main.java.version>
+        <main.signature.artifact>java16</main.signature.artifact>
+      </properties>
+      <build>
+        <plugins>
+          <plugin>
+            <artifactId>maven-enforcer-plugin</artifactId>
+            <version>${maven-enforcer-plugin.version}</version>
+            <executions>
+              <execution>
+                <id>enforce-java</id>
+                <goals>
+                  <goal>enforce</goal>
+                </goals>
+                <configuration>
+                  <rules>
+                    <!-- The only LTS JDK we support that can compile 1.6 bytecode is 11.
+                         https://www.oracle.com/java/technologies/javase/12-relnote-issues.html -->
+                    <requireJavaVersion>
+                      <version>[11,12)</version>
+                    </requireJavaVersion>
+                  </rules>
+                </configuration>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
 </project>
diff --git a/brave/src/main/java/brave/Tracing.java b/brave/src/main/java/brave/Tracing.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 The OpenZipkin Authors
+ * Copyright 2013-2023 The OpenZipkin Authors
  *
  * 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
@@ -50,7 +50,7 @@
  * for example via spring or when mocking.
  */
 public abstract class Tracing implements Closeable {
-  static final AtomicReference<Tracing> CURRENT = new AtomicReference<>();
+  static final AtomicReference<Tracing> CURRENT = new AtomicReference<Tracing>();
 
   public static Builder newBuilder() {
     return new Builder();
@@ -148,7 +148,7 @@ public static final class Builder {
     boolean alwaysSampleLocal = false, alwaysReportSpans = false, trackOrphans = false;
     Propagation.Factory propagationFactory = B3Propagation.FACTORY;
     ErrorParser errorParser = new ErrorParser();
-    Set<SpanHandler> spanHandlers = new LinkedHashSet<>(); // dupes not ok
+    Set<SpanHandler> spanHandlers = new LinkedHashSet<SpanHandler>(); // dupes not ok
 
     Builder() {
       defaultSpan.localServiceName("unknown");
@@ -162,7 +162,7 @@ public static final class Builder {
      * @since 5.12
      */
     public Set<SpanHandler> spanHandlers() {
-      return Collections.unmodifiableSet(new LinkedHashSet<>(spanHandlers));
+      return Collections.unmodifiableSet(new LinkedHashSet<SpanHandler>(spanHandlers));
     }
 
     /**
@@ -480,7 +480,7 @@ static final class Default extends Tracing {
         defaultSpan.localIp(Platform.get().linkLocalIp());
       }
 
-      Set<SpanHandler> spanHandlers = new LinkedHashSet<>(builder.spanHandlers);
+      Set<SpanHandler> spanHandlers = new LinkedHashSet<SpanHandler>(builder.spanHandlers);
       // When present, the Zipkin handler is invoked after the user-supplied ones.
       if (builder.zipkinSpanReporter != null) {
         spanHandlers.add(