feat: support for java17 and java21 runtimes (#936)

Fixes: #935.

Co-authored-by: Clément Denis <clement@altirnao.com>

appengine-plugins-core/.github/workflows/unit-tests.yaml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java: [8, 11, 17]
+        java: [8, 11, 17, 21]
     env:
       CLOUDSDK_CORE_DISABLE_USAGE_REPORTING: true
       CLOUDSDK_CORE_DISABLE_PROMPTS: true

appengine-plugins-core/pom.xml

@@ -105,7 +105,7 @@
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>4.4.0</version>
+      <version>5.5.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>
@@ -244,7 +244,7 @@
       <plugin>
         <groupId>org.jacoco</groupId>
         <artifactId>jacoco-maven-plugin</artifactId>
-        <version>0.8.7</version>
+        <version>0.8.10</version>
         <executions>
           <execution>
             <id>initialize</id>
@@ -329,12 +329,12 @@
                 <path>
                   <groupId>com.google.errorprone</groupId>
                   <artifactId>error_prone_core</artifactId>
-                  <version>2.11.0</version>
+                  <version>2.22.0</version>
                 </path>
                 <path>
                   <groupId>com.uber.nullaway</groupId>
                   <artifactId>nullaway</artifactId>
-                  <version>0.7.8</version>
+                  <version>0.10.14</version>
                 </path>
               </annotationProcessorPaths>
               <fork>true</fork>
@@ -420,6 +420,15 @@
       <activation>
         <jdk>1.8</jdk>
       </activation>
+      <dependencies>
+        <dependency>
+          <groupId>org.mockito</groupId>
+          <artifactId>mockito-core</artifactId>
+          <!-- keep 4.x for JDK 8 tests as 5.x is for JDK 11+ -->
+          <version>4.11.0</version>
+          <scope>test</scope>
+        </dependency>
+      </dependencies>
       <build>
         <plugins>
           <plugin>

appengine-plugins-core/src/main/java/com/google/cloud/tools/appengine/operations/AppYamlProjectStaging.java

@@ -27,6 +27,7 @@
 import com.google.common.base.Splitter;
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableSet;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.file.Files;
@@ -44,6 +45,9 @@ public class AppYamlProjectStaging {
 
   private static final String APP_YAML = "app.yaml";
 
+  private static final ImmutableSet<String> GEN2_RUNTIMES =
+      ImmutableSet.of("java11", "java17", "java21");
+
   @VisibleForTesting
   static final ImmutableList<String> OTHER_YAMLS =
       ImmutableList.of("cron.yaml", "dos.yaml", "dispatch.yaml", "index.yaml", "queue.yaml");
@@ -76,7 +80,7 @@ public void stageArchive(AppYamlProjectStageConfiguration config) throws AppEngi
         stageFlexibleArchive(config, runtime);
         return;
       }
-      if ("java11".equals(runtime) || "java17".equals(runtime)) {
+      if (GEN2_RUNTIMES.contains(runtime)) {
         boolean isJar = config.getArtifact().getFileName().toString().endsWith(".jar");
         if (isJar) {
           stageStandardArchive(config);
@@ -88,7 +92,9 @@ public void stageArchive(AppYamlProjectStageConfiguration config) throws AppEngi
         }
         // I cannot deploy non-jars without custom entrypoints
         throw new AppEngineException(
-            "Cannot process application with runtime: java11/java17."
+            "Cannot process application with runtime: "
+                + runtime
+                + "."
                 + " A custom entrypoint must be defined in your app.yaml for non-jar artifact: "
                 + config.getArtifact().toString());
       }
@@ -248,10 +254,10 @@ static void copyArtifactJarClasspath(
       Iterable<String> classpathEntries = Splitter.onPattern("\\s+").split(jarClassPath.trim());
       for (String classpathEntry : classpathEntries) {
         // classpath entries are relative to artifact's position and relativeness should be
-        // preserved
-        // in the target directory
-        Path jarSrc = artifact.getParent().resolve(classpathEntry);
-        if (!Files.isRegularFile(jarSrc)) {
+        // preserved in the target directory
+        Path jarSrc =
+            artifact.getParent() == null ? null : artifact.getParent().resolve(classpathEntry);
+        if (jarSrc == null || !Files.isRegularFile(jarSrc)) {
           log.warning("Could not copy 'Class-Path' jar: " + jarSrc + " referenced in MANIFEST.MF");
           continue;
         }

appengine-plugins-core/src/main/java/com/google/cloud/tools/appengine/operations/DevAppServerRunner.java

@@ -72,9 +72,11 @@ public void run(
     command.add(sdk.getJavaExecutablePath().toAbsolutePath().toString());
 
     command.addAll(jvmArgs);
-    command.add(
-        "-Dappengine.sdk.root="
-            + sdk.getAppEngineSdkForJavaPath().getParent().toAbsolutePath().toString());
+    if (sdk.getAppEngineSdkForJavaPath().getParent() != null) {
+      command.add(
+          "-Dappengine.sdk.root="
+              + sdk.getAppEngineSdkForJavaPath().getParent().toAbsolutePath().toString());
+    }
     command.add("-cp");
     command.add(sdk.getAppEngineToolsJar().toAbsolutePath().toString());
     command.add("com.google.appengine.tools.development.DevAppServerMain");

appengine-plugins-core/src/test/java/com/google/cloud/tools/appengine/operations/AppYamlProjectStagingTest.java

@@ -107,9 +107,24 @@ public void testStageArchive_flexPath() throws IOException, AppEngineException {
 
   @Test
   public void testStageArchive_java11StandardPath() throws IOException, AppEngineException {
+    stageArchive_gen2StandardPath("java11");
+  }
+
+  @Test
+  public void testStageArchive_java17StandardPath() throws IOException, AppEngineException {
+    stageArchive_gen2StandardPath("java17");
+  }
+
+  @Test
+  public void testStageArchive_java21StandardPath() throws IOException, AppEngineException {
+    stageArchive_gen2StandardPath("java21");
+  }
+
+  private void stageArchive_gen2StandardPath(String runtime)
+      throws IOException, AppEngineException {
     Files.write(
         appEngineDirectory.resolve("app.yaml"),
-        "runtime: java11\n".getBytes(StandardCharsets.UTF_8),
+        ("runtime: " + runtime + "\n").getBytes(StandardCharsets.UTF_8),
         StandardOpenOption.CREATE_NEW);
 
     // mock to watch internal calls
@@ -122,6 +137,21 @@ public void testStageArchive_java11StandardPath() throws IOException, AppEngineE
 
   @Test
   public void testStageArchive_java11StandardBinaryPath() throws IOException, AppEngineException {
+    stageArchive_gen2StandardBinaryPath("java11");
+  }
+
+  @Test
+  public void testStageArchive_java17StandardBinaryPath() throws IOException, AppEngineException {
+    stageArchive_gen2StandardBinaryPath("java17");
+  }
+
+  @Test
+  public void testStageArchive_java21StandardBinaryPath() throws IOException, AppEngineException {
+    stageArchive_gen2StandardBinaryPath("java21");
+  }
+
+  private void stageArchive_gen2StandardBinaryPath(String runtime)
+      throws IOException, AppEngineException {
     config =
         AppYamlProjectStageConfiguration.builder()
             .appEngineDirectory(appEngineDirectory)
@@ -132,7 +162,7 @@ public void testStageArchive_java11StandardBinaryPath() throws IOException, AppE
 
     Files.write(
         appEngineDirectory.resolve("app.yaml"),
-        "runtime: java11\nentrypoint: anything\n".getBytes(StandardCharsets.UTF_8),
+        ("runtime: " + runtime + "\nentrypoint: anything\n").getBytes(StandardCharsets.UTF_8),
         StandardOpenOption.CREATE_NEW);
 
     // mock to watch internal calls
@@ -145,6 +175,20 @@ public void testStageArchive_java11StandardBinaryPath() throws IOException, AppE
 
   @Test
   public void testStageArchive_java11BinaryWithoutEntrypoint() throws IOException {
+    stageArchive_gen2BinaryWithoutEntrypoint("java11");
+  }
+
+  @Test
+  public void testStageArchive_java17BinaryWithoutEntrypoint() throws IOException {
+    stageArchive_gen2BinaryWithoutEntrypoint("java17");
+  }
+
+  @Test
+  public void testStageArchive_java21BinaryWithoutEntrypoint() throws IOException {
+    stageArchive_gen2BinaryWithoutEntrypoint("java21");
+  }
+
+  private void stageArchive_gen2BinaryWithoutEntrypoint(String runtime) throws IOException {
     Path nonJarArtifact = temporaryFolder.newFile("myscript.sh").toPath();
     config =
         AppYamlProjectStageConfiguration.builder()
@@ -156,7 +200,7 @@ public void testStageArchive_java11BinaryWithoutEntrypoint() throws IOException
 
     Files.write(
         appEngineDirectory.resolve("app.yaml"),
-        "runtime: java11\n".getBytes(StandardCharsets.UTF_8),
+        ("runtime: " + runtime + "\n").getBytes(StandardCharsets.UTF_8),
         StandardOpenOption.CREATE_NEW);
 
     AppYamlProjectStaging testStaging = new AppYamlProjectStaging();
@@ -166,8 +210,10 @@ public void testStageArchive_java11BinaryWithoutEntrypoint() throws IOException
       fail();
     } catch (AppEngineException ex) {
       assertEquals(
-          "Cannot process application with runtime: java11/java17. A custom entrypoint must be defined in your app.yaml for non-jar artifact: "
-              + nonJarArtifact.toString(),
+          "Cannot process application with runtime: "
+              + runtime
+              + ". A custom entrypoint must be defined in your app.yaml for non-jar artifact: "
+              + config.getArtifact().toString(),
           ex.getMessage());
     }
   }

appengine-plugins-core/src/test/java/com/google/cloud/tools/appengine/operations/DevServersRunnerTest.java

@@ -39,6 +39,7 @@
 import org.mockito.junit.MockitoJUnitRunner;
 
 @RunWith(MockitoJUnitRunner.class)
+@SuppressWarnings("NullAway")
 public class DevServersRunnerTest {
 
   @Rule public TemporaryFolder testFolder = new TemporaryFolder();

appengine-plugins-core/src/test/java/com/google/cloud/tools/appengine/operations/cloudsdk/PathResolverTest.java

@@ -34,6 +34,7 @@
 import org.junit.rules.TemporaryFolder;
 import org.mockito.Mockito;
 
+@SuppressWarnings("NullAway")
 public class PathResolverTest {
 
   @ClassRule public static TemporaryFolder symlinkTestArea = new TemporaryFolder();