Upgrade Java to 20 GA

.github/workflows/validate.yml

@@ -7,7 +7,7 @@ name: "Validate"
 on: [pull_request, push]
 
 env:
-  JAVA_VERSION: '19'
+  JAVA_VERSION: '20'
   JAVA_DISTRO: 'temurin'
   HELIDON_PIPELINES: 'true'
   MAVEN_HTTP_ARGS: '-Dmaven.wagon.httpconnectionManager.ttlSeconds=60 -Dmaven.wagon.http.retryHandler.count=3'
@@ -24,7 +24,7 @@ jobs:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
-     - name: Set up JDK 19
+     - name: Set up JDK ${{ env.JAVA_VERSION }}
        uses: actions/setup-java@v3.6.0
        with:
          distribution: ${{ env.JAVA_DISTRO }}
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v3
-      - name: Set up JDK 19
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
         uses: actions/setup-java@v3.6.0
         with:
           distribution: ${{ env.JAVA_DISTRO }}
@@ -50,7 +50,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v3
-      - name: Set up JDK 19
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
         uses: actions/setup-java@v3.6.0
         with:
           distribution: ${{ env.JAVA_DISTRO }}
@@ -63,7 +63,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v3
-      - name: Set up JDK 19
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
         uses: actions/setup-java@v3.6.0
         with:
           distribution: ${{ env.JAVA_DISTRO }}
@@ -79,7 +79,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - name: Set up JDK 19
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
         uses: actions/setup-java@v3.6.0
         with:
           distribution: ${{ env.JAVA_DISTRO }}
@@ -95,7 +95,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - name: Set up JDK 19
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
         uses: actions/setup-java@v3.6.0
         with:
           distribution: ${{ env.JAVA_DISTRO }}
@@ -115,7 +115,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - name: Set up JDK 19
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
         uses: actions/setup-java@v3.6.0
         with:
           distribution: ${{ env.JAVA_DISTRO }}
@@ -131,7 +131,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - name: Set up JDK 19
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
         uses: actions/setup-java@v3.6.0
         with:
           distribution: ${{ env.JAVA_DISTRO }}
@@ -147,7 +147,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - name: Set up JDK 19
+      - name: Set up JDK ${{ env.JAVA_VERSION }}
         uses: actions/setup-java@v3.6.0
         with:
           distribution: ${{ env.JAVA_DISTRO }}

README.md

@@ -24,7 +24,7 @@ Helidon supports two programming models:
 In either case your application is just a Java SE program.
 
 ## Early access branch
-This branch requires Java 19 early access release with Loom support.
+This branch requires Java 20 early access release with Loom support.
 Applications written using this version will require `--enable-preview` to be used when starting JVM.
 Kindly use latest official release to work with Java 17, unless you are interested in the newest and greatest!
 

applications/mp/pom.xml

@@ -35,7 +35,7 @@
         <version.plugin.jandex>1.0.6</version.plugin.jandex>
         <version.plugin.jaxb2>0.14.0</version.plugin.jaxb2>
         <version.plugin.eclipselink>2.7.5.1</version.plugin.eclipselink>
-        <version.plugin.hibernate.enhance>${version.lib.hibernate}</version.plugin.hibernate.enhance>
+        <version.plugin.hibernate.enhance>6.1.7.Final</version.plugin.hibernate.enhance>
         <mainClass>io.helidon.microprofile.cdi.Main</mainClass>
     </properties>
 

applications/parent/pom.xml

@@ -35,7 +35,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <maven.compiler.source>19</maven.compiler.source>
+        <maven.compiler.source>20</maven.compiler.source>
         <maven.compiler.target>${maven.compiler.source}</maven.compiler.target>
         <maven.compiler.release>${maven.compiler.source}</maven.compiler.release>
         <version.plugin.compiler>3.8.1</version.plugin.compiler>

archetypes/helidon/src/main/archetype/common/files/Dockerfile.native.mustache

@@ -1,6 +1,6 @@
 
 # 1st stage, build the app
-FROM ghcr.io/graalvm/graalvm-ce:ol9-java19-22.3.0 as build
+FROM ghcr.io/graalvm/graalvm-ce:ol9-java20-22.3.1 as build
 
 # Install native-image
 RUN gu install native-image

builder/processor-tools/src/main/java/io/helidon/builder/processor/tools/ToStringAnnotationValueVisitor.java

@@ -32,27 +32,27 @@ class ToStringAnnotationValueVisitor implements AnnotationValueVisitor<String, O
     private boolean mapBlankArrayToNull;
     private boolean mapToSourceDeclaration;
 
-    public ToStringAnnotationValueVisitor mapVoidToNull(boolean val) {
+    ToStringAnnotationValueVisitor mapVoidToNull(boolean val) {
         this.mapVoidToNull = val;
         return this;
     }
 
-    public ToStringAnnotationValueVisitor mapBooleanToNull(boolean val) {
+    ToStringAnnotationValueVisitor mapBooleanToNull(boolean val) {
         this.mapFalseToNull = val;
         return this;
     }
 
-    public ToStringAnnotationValueVisitor mapEmptyStringToNull(boolean val) {
+    ToStringAnnotationValueVisitor mapEmptyStringToNull(boolean val) {
         this.mapEmptyStringToNull = val;
         return this;
     }
 
-    public ToStringAnnotationValueVisitor mapBlankArrayToNull(boolean val) {
+    ToStringAnnotationValueVisitor mapBlankArrayToNull(boolean val) {
         this.mapBlankArrayToNull = val;
         return this;
     }
 
-    public ToStringAnnotationValueVisitor mapToSourceDeclaration(boolean val) {
+    ToStringAnnotationValueVisitor mapToSourceDeclaration(boolean val) {
         this.mapToSourceDeclaration = val;
         return this;
     }
@@ -150,24 +150,27 @@ public String visitArray(List<? extends AnnotationValue> vals, Object o) {
             }
         }
 
-        String result = String.join(", ", values);
-        if (mapBlankArrayToNull && result.isBlank()) {
-            result = null;
+        if (mapBlankArrayToNull && values.isEmpty()) {
+            return null;
         } else if (mapToSourceDeclaration) {
-            result = "{";
+            StringBuilder resultBuilder = new StringBuilder("{");
+
             for (AnnotationValue val : vals) {
                 String stringVal = val.accept(this, null);
                 if (stringVal != null) {
-                    if (result.length() > 1) {
-                        result += ", ";
+                    if (resultBuilder.length() > 1) {
+                        resultBuilder.append(", ");
                     }
-                    result += stringVal;
+                    resultBuilder.append(stringVal);
                 }
             }
-            result += "}";
+
+            resultBuilder.append("}");
+
+            return resultBuilder.toString();
         }
 
-        return result;
+        return String.join(", ", values);
     }
 
     @Override

dependencies/pom.xml

@@ -44,7 +44,7 @@
         <version.lib.commons-logging>1.2</version.lib.commons-logging>
         <version.lib.cron-utils>9.1.6</version.lib.cron-utils>
         <version.lib.dropwizard.metrics>4.1.2</version.lib.dropwizard.metrics>
-        <version.lib.eclipselink>3.0.3</version.lib.eclipselink>
+        <version.lib.eclipselink>4.0.1</version.lib.eclipselink>
         <version.lib.el-impl>4.0.2</version.lib.el-impl>
         <version.lib.etcd4j>2.18.0</version.lib.etcd4j>
         <version.lib.failsafe>2.3.1</version.lib.failsafe>
@@ -61,7 +61,7 @@
         <version.lib.h2>2.1.212</version.lib.h2>
         <version.lib.hamcrest>1.3</version.lib.hamcrest>
         <version.lib.handlebars>4.3.1</version.lib.handlebars>
-        <version.lib.hibernate>6.1.4.Final</version.lib.hibernate>
+        <version.lib.hibernate>6.1.7.Final</version.lib.hibernate>
         <version.lib.hibernate-validator>7.0.2.Final</version.lib.hibernate-validator>
         <version.lib.hikaricp>5.0.1</version.lib.hikaricp>
         <version.lib.hystrix>1.5.18</version.lib.hystrix>

etc/scripts/includes/pipeline-env.sh

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2018, 2022 Oracle and/or its affiliates.
+# Copyright (c) 2018, 2023 Oracle and/or its affiliates.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -47,7 +47,7 @@ if [ -z "${__PIPELINE_ENV_INCLUDED__}" ]; then
     . ${WS_DIR}/etc/scripts/includes/error_handlers.sh
 
     if [ -z "${GRAALVM_HOME}" ]; then
-        export GRAALVM_HOME="/tools/graalvm-ce-java19-22.3.0"
+        export GRAALVM_HOME="/tools/graalvm-ce-java20-22.3.1"
     fi
 
     require_env() {
@@ -75,7 +75,7 @@ if [ -z "${__PIPELINE_ENV_INCLUDED__}" ]; then
 
     if [ -n "${JENKINS_HOME}" ] ; then
         export PIPELINE="true"
-        export JAVA_HOME="/tools/jdk19"
+        export JAVA_HOME="/tools/jdk20"
         MAVEN_OPTS="${MAVEN_OPTS} -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn"
         MAVEN_OPTS="${MAVEN_OPTS} -Dorg.slf4j.simpleLogger.showDateTime=true"
         MAVEN_OPTS="${MAVEN_OPTS} -Dorg.slf4j.simpleLogger.dateTimeFormat=HH:mm:ss,SSS"

examples/integrations/neo4j/neo4j-mp/Dockerfile.native

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2021, 2022 Oracle and/or its affiliates.
+# Copyright (c) 2021, 2023 Oracle and/or its affiliates.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
 #
 
 # 1st stage, build the app
-FROM ghcr.io/graalvm/graalvm-ce:ol9-java19-22.3.0 as build
+FROM ghcr.io/graalvm/graalvm-ce:ol9-java20-22.3.1 as build
 
 # Install native-image
 RUN gu install native-image

examples/integrations/neo4j/neo4j-se/Dockerfile.native

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2021, 2022 Oracle and/or its affiliates.
+# Copyright (c) 2021, 2023 Oracle and/or its affiliates.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
 #
 
 # 1st stage, build the app
-FROM ghcr.io/graalvm/graalvm-ce:ol9-java19-22.3.0 as build
+FROM ghcr.io/graalvm/graalvm-ce:ol9-java20-22.3.1 as build
 
 # Install native-image
 RUN gu install native-image

examples/microprofile/http-status-count-mp/src/test/java/io/helidon/examples/mp/httpstatuscount/StatusTest.java

@@ -55,7 +55,8 @@ void findStatusMetrics() {
 
     @Test
     void checkStatusMetrics() {
-        checkAfterStatus(171);
+        // intermediate responses are not "full" responses and since JDK 20 they are not returned by the client at all
+        // checkAfterStatus(171);
         checkAfterStatus(200);
         checkAfterStatus(201);
         checkAfterStatus(204);

examples/nima/observe/src/main/java/io/helidon/examples/nima/observe/ObserveMain.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Oracle and/or its affiliates.
+ * Copyright (c) 2022, 2023 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -48,7 +48,7 @@ public static void main(String[] args) {
                 .routing(it -> routing(config, it))
                 .start();
 
-        System.out.println("WEB server is up! http://localhost:" + server.port() + "/greet");
+        System.out.println("WEB server is up! http://localhost:" + server.port());
     }
 
     /**

examples/nima/quickstart-standalone/pom.xml

@@ -29,7 +29,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <maven.compiler.source>19</maven.compiler.source>
+        <maven.compiler.source>20</maven.compiler.source>
         <maven.compiler.target>${maven.compiler.source}</maven.compiler.target>
         <maven.compiler.release>${maven.compiler.source}</maven.compiler.release>
 

examples/quickstarts/helidon-quickstart-mp/Dockerfile.native

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2020, 2022 Oracle and/or its affiliates.
+# Copyright (c) 2020, 2023 Oracle and/or its affiliates.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
 #
 
 # 1st stage, build the app
-FROM ghcr.io/graalvm/graalvm-ce:ol9-java19-22.3.0 as build
+FROM ghcr.io/graalvm/graalvm-ce:ol9-java20-22.3.1 as build
 
 # Install native-image
 RUN gu install native-image

examples/quickstarts/helidon-quickstart-se/Dockerfile.native

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2019, 2022 Oracle and/or its affiliates.
+# Copyright (c) 2019, 2023 Oracle and/or its affiliates.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
 #
 
 # 1st stage, build the app
-FROM ghcr.io/graalvm/graalvm-ce:ol9-java19-22.3.0 as build
+FROM ghcr.io/graalvm/graalvm-ce:ol9-java20-22.3.1 as build
 
 # Install native-image
 RUN gu install native-image

examples/quickstarts/helidon-standalone-quickstart-mp/Dockerfile.native

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2020, 2022 Oracle and/or its affiliates.
+# Copyright (c) 2020, 2023 Oracle and/or its affiliates.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
 #
 
 # 1st stage, build the app
-FROM ghcr.io/graalvm/graalvm-ce:ol9-java19-22.3.0 as build
+FROM ghcr.io/graalvm/graalvm-ce:ol9-java20-22.3.1 as build
 
 # Install native-image
 RUN gu install native-image

examples/quickstarts/helidon-standalone-quickstart-mp/pom.xml

@@ -29,7 +29,7 @@
         <helidon.version>4.0.0-SNAPSHOT</helidon.version>
         <mainClass>io.helidon.microprofile.cdi.Main</mainClass>
 
-        <maven.compiler.source>19</maven.compiler.source>
+        <maven.compiler.source>20</maven.compiler.source>
         <maven.compiler.target>${maven.compiler.source}</maven.compiler.target>
         <maven.site.skip>true</maven.site.skip>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

examples/quickstarts/helidon-standalone-quickstart-se/Dockerfile.native

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2019, 2022 Oracle and/or its affiliates.
+# Copyright (c) 2019, 2023 Oracle and/or its affiliates.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
 #
 
 # 1st stage, build the app
-FROM ghcr.io/graalvm/graalvm-ce:ol9-java19-22.3.0 as build
+FROM ghcr.io/graalvm/graalvm-ce:ol9-java20-22.3.1 as build
 
 # Install native-image
 RUN gu install native-image

examples/quickstarts/helidon-standalone-quickstart-se/pom.xml

@@ -29,7 +29,7 @@
         <helidon.version>4.0.0-SNAPSHOT</helidon.version>
         <mainClass>io.helidon.examples.quickstart.se.Main</mainClass>
 
-        <maven.compiler.source>19</maven.compiler.source>
+        <maven.compiler.source>20</maven.compiler.source>
         <maven.compiler.target>${maven.compiler.source}</maven.compiler.target>
         <maven.site.skip>true</maven.site.skip>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>