From 1c3b76d8e3624e5fa96c88ba4d57a987d365832f Mon Sep 17 00:00:00 2001
From: Shai Almog <67850168+shai-almog@users.noreply.github.com>
Date: Wed, 4 Mar 2026 21:16:24 +0200
Subject: [PATCH 1/8] Update HelloCodenameOne scripts and tests for Java 17

---
 scripts/hellocodenameone/README.adoc          |  5 ++++
 scripts/hellocodenameone/android/pom.xml      |  4 +--
 scripts/hellocodenameone/build.bat            |  5 ++++
 scripts/hellocodenameone/build.sh             | 19 ++++++++++++-
 .../common/codenameone_settings.properties    |  2 +-
 .../Java17LanguageFeaturesTest.java           | 27 +++++++++++++++++++
 scripts/hellocodenameone/ios/pom.xml          |  4 +--
 scripts/hellocodenameone/javascript/pom.xml   |  4 +--
 scripts/hellocodenameone/javase/pom.xml       |  4 +--
 scripts/hellocodenameone/pom.xml              | 10 +++----
 scripts/hellocodenameone/run.bat              |  5 ++++
 scripts/hellocodenameone/run.sh               | 19 ++++++++++++-
 scripts/hellocodenameone/win/pom.xml          |  4 +--
 13 files changed, 94 insertions(+), 18 deletions(-)
 create mode 100644 scripts/hellocodenameone/common/src/test/java/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java

diff --git a/scripts/hellocodenameone/README.adoc b/scripts/hellocodenameone/README.adoc
index 3c48268908..b335420f0e 100644
--- a/scripts/hellocodenameone/README.adoc
+++ b/scripts/hellocodenameone/README.adoc
@@ -8,6 +8,11 @@ This is a multi-module maven project for building a Codename One application. Co
 
 If you plan to use Java as your primary language, https://shannah.github.io/cn1-maven-archetypes/cn1app-archetype-tutorial/getting-started.html[start here].
 
+=== Java Version
+
+Use Java 17 to build and run this project (e.g. `JAVA_HOME` should point to a JDK 17 installation).
+
+
 === Kotlin
 
 If you plan to use Kotlin as your primary language, https://shannah.github.io/cn1app-archetype-kotlin-template/getting-started.html[start here].
diff --git a/scripts/hellocodenameone/android/pom.xml b/scripts/hellocodenameone/android/pom.xml
index b72d6f7ffd..bfb4ac0257 100644
--- a/scripts/hellocodenameone/android/pom.xml
+++ b/scripts/hellocodenameone/android/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
     <codename1.platform>android</codename1.platform>
       <codename1.projectPlatform>android</codename1.projectPlatform>
       <codename1.defaultBuildTarget>android-device</codename1.defaultBuildTarget>
diff --git a/scripts/hellocodenameone/build.bat b/scripts/hellocodenameone/build.bat
index b7ccc0e212..3a6de4a84d 100644
--- a/scripts/hellocodenameone/build.bat
+++ b/scripts/hellocodenameone/build.bat
@@ -6,6 +6,11 @@ setlocal EnableExtensions
 
 set MVNW=mvnw.cmd
 
+java -version 2>&1 | findstr /c:"17" >nul
+if errorlevel 1 if exist "C:\Program Files\Java\jdk-17" set "JAVA_HOME=C:\Program Files\Java\jdk-17"
+if errorlevel 1 if exist "C:\Program Files\Eclipse Adoptium\jdk-17" set "JAVA_HOME=C:\Program Files\Eclipse Adoptium\jdk-17"
+if not "%JAVA_HOME%"=="" set "PATH=%JAVA_HOME%\bin;%PATH%"
+
 SET CMD=%1
 if "%CMD%"=="" (
   set CMD=jar
diff --git a/scripts/hellocodenameone/build.sh b/scripts/hellocodenameone/build.sh
index 8a99f56684..3501905782 100755
--- a/scripts/hellocodenameone/build.sh
+++ b/scripts/hellocodenameone/build.sh
@@ -2,6 +2,23 @@
 set -e
 MVNW="./mvnw"
 
+JAVA17_HOME=""
+if [ -n "$JAVA_HOME" ] && [ -x "$JAVA_HOME/bin/java" ] && "$JAVA_HOME/bin/java" -version 2>&1 | head -n 1 | grep -q "\"17"; then
+  JAVA17_HOME="$JAVA_HOME"
+else
+  for candidate in /usr/lib/jvm/java-17-openjdk-amd64 /usr/lib/jvm/java-17-openjdk /usr/lib/jvm/jdk-17 /usr/lib/jvm/*17*; do
+    if [ -x "$candidate/bin/java" ] && "$candidate/bin/java" -version 2>&1 | head -n 1 | grep -q "\"17"; then
+      JAVA17_HOME="$candidate"
+      break
+    fi
+  done
+fi
+
+if [ -n "$JAVA17_HOME" ]; then
+  export JAVA_HOME="$JAVA17_HOME"
+  export PATH="$JAVA_HOME/bin:$PATH"
+fi
+
 function mac_desktop {
   
   "$MVNW" "package" "-DskipTests" "-Dcodename1.platform=javase" "-Dcodename1.buildTarget=mac-os-x-desktop" "-U" "-e"
@@ -96,4 +113,4 @@ CMD="$1"
 if [ "$CMD" == "" ]; then
   CMD="jar"
 fi
-"$CMD" 
\ No newline at end of file
+"$CMD" 
diff --git a/scripts/hellocodenameone/common/codenameone_settings.properties b/scripts/hellocodenameone/common/codenameone_settings.properties
index b388059468..dde08ababc 100644
--- a/scripts/hellocodenameone/common/codenameone_settings.properties
+++ b/scripts/hellocodenameone/common/codenameone_settings.properties
@@ -2,7 +2,7 @@ codename1.android.keystore=
 codename1.android.keystoreAlias=
 codename1.android.keystorePassword=
 codename1.arg.ios.newStorageLocation=true
-codename1.arg.java.version=8
+codename1.arg.java.version=17
 codename1.displayName=HelloCodenameOne
 codename1.icon=icon.png
 codename1.arg.android.useAndroidX=true
diff --git a/scripts/hellocodenameone/common/src/test/java/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java b/scripts/hellocodenameone/common/src/test/java/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java
new file mode 100644
index 0000000000..0bc56d0612
--- /dev/null
+++ b/scripts/hellocodenameone/common/src/test/java/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java
@@ -0,0 +1,27 @@
+package com.codenameone.examples.hellocodenameone;
+
+import com.codename1.testing.AbstractTest;
+
+public class Java17LanguageFeaturesTest extends AbstractTest {
+
+    @Override
+    public boolean runTest() throws Exception {
+        var greeting = "Hello";
+        var target = "Codename One";
+
+        var message = switch (greeting.length()) {
+            case 5 -> greeting + " " + target;
+            default -> "unexpected";
+        };
+
+        var textBlock = """
+                Java 17 language features
+                should compile in tests.
+                """;
+
+        assertEqual("Hello Codename One", message);
+        assertEqual("Java 17 language features\nshould compile in tests.\n", textBlock);
+
+        return true;
+    }
+}
diff --git a/scripts/hellocodenameone/ios/pom.xml b/scripts/hellocodenameone/ios/pom.xml
index ccbad41f9f..7e26e9a300 100644
--- a/scripts/hellocodenameone/ios/pom.xml
+++ b/scripts/hellocodenameone/ios/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
     <codename1.platform>ios</codename1.platform>
       <codename1.projectPlatform>ios</codename1.projectPlatform>
       <codename1.defaultBuildTarget>ios-device</codename1.defaultBuildTarget>
diff --git a/scripts/hellocodenameone/javascript/pom.xml b/scripts/hellocodenameone/javascript/pom.xml
index b9bfdcee29..13f64ecfb7 100644
--- a/scripts/hellocodenameone/javascript/pom.xml
+++ b/scripts/hellocodenameone/javascript/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
     <codename1.platform>javascript</codename1.platform>
       <codename1.projectPlatform>javascript</codename1.projectPlatform>
       <codename1.defaultBuildTarget>javascript</codename1.defaultBuildTarget>
diff --git a/scripts/hellocodenameone/javase/pom.xml b/scripts/hellocodenameone/javase/pom.xml
index 82ff468af0..99fba47492 100644
--- a/scripts/hellocodenameone/javase/pom.xml
+++ b/scripts/hellocodenameone/javase/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
     <codename1.platform>javase</codename1.platform>
       <codename1.projectPlatform>javase</codename1.projectPlatform>
   </properties>
diff --git a/scripts/hellocodenameone/pom.xml b/scripts/hellocodenameone/pom.xml
index 04b3e490c5..f625da3f6c 100644
--- a/scripts/hellocodenameone/pom.xml
+++ b/scripts/hellocodenameone/pom.xml
@@ -22,13 +22,13 @@
     <cn1.plugin.version>8.0-SNAPSHOT</cn1.plugin.version>
     <cn1.version>8.0-SNAPSHOT</cn1.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <java.version>1.8</java.version>
-    <java-tests.version>11</java-tests.version>
+    <java.version>17</java.version>
+    <java-tests.version>17</java-tests.version>
     <rhino.version>1.7.11</rhino.version>
     <maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
-    <kotlin.compiler.jvmTarget>1.8</kotlin.compiler.jvmTarget>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
+    <kotlin.compiler.jvmTarget>17</kotlin.compiler.jvmTarget>
     <cn1app.name>hellocodenameone</cn1app.name>
   </properties>
   <dependencyManagement>
diff --git a/scripts/hellocodenameone/run.bat b/scripts/hellocodenameone/run.bat
index f8b979c32a..b13546476f 100644
--- a/scripts/hellocodenameone/run.bat
+++ b/scripts/hellocodenameone/run.bat
@@ -5,6 +5,11 @@ setlocal EnableExtensions
 
 set MVNW=mvnw.cmd
 
+java -version 2>&1 | findstr /c:"17" >nul
+if errorlevel 1 if exist "C:\Program Files\Java\jdk-17" set "JAVA_HOME=C:\Program Files\Java\jdk-17"
+if errorlevel 1 if exist "C:\Program Files\Eclipse Adoptium\jdk-17" set "JAVA_HOME=C:\Program Files\Eclipse Adoptium\jdk-17"
+if not "%JAVA_HOME%"=="" set "PATH=%JAVA_HOME%\bin;%PATH%"
+
 SET CMD=%1
 if "%CMD%"=="" (
   set CMD=simulator
diff --git a/scripts/hellocodenameone/run.sh b/scripts/hellocodenameone/run.sh
index ef0a12cbe5..1259c7558a 100755
--- a/scripts/hellocodenameone/run.sh
+++ b/scripts/hellocodenameone/run.sh
@@ -1,6 +1,23 @@
 #!/bin/bash
 MVNW="./mvnw"
 
+JAVA17_HOME=""
+if [ -n "$JAVA_HOME" ] && [ -x "$JAVA_HOME/bin/java" ] && "$JAVA_HOME/bin/java" -version 2>&1 | head -n 1 | grep -q "\"17"; then
+  JAVA17_HOME="$JAVA_HOME"
+else
+  for candidate in /usr/lib/jvm/java-17-openjdk-amd64 /usr/lib/jvm/java-17-openjdk /usr/lib/jvm/jdk-17 /usr/lib/jvm/*17*; do
+    if [ -x "$candidate/bin/java" ] && "$candidate/bin/java" -version 2>&1 | head -n 1 | grep -q "\"17"; then
+      JAVA17_HOME="$candidate"
+      break
+    fi
+  done
+fi
+
+if [ -n "$JAVA17_HOME" ]; then
+  export JAVA_HOME="$JAVA17_HOME"
+  export PATH="$JAVA_HOME/bin:$PATH"
+fi
+
 function simulator {
   
   "$MVNW" "verify" "-Psimulator" "-DskipTests" "-Dcodename1.platform=javase" "-e"
@@ -34,4 +51,4 @@ CMD=$1
 if [ "$CMD" == "" ]; then
   CMD="simulator"
 fi
-"$CMD" 
\ No newline at end of file
+"$CMD" 
diff --git a/scripts/hellocodenameone/win/pom.xml b/scripts/hellocodenameone/win/pom.xml
index 81831387c2..f4776d4cee 100644
--- a/scripts/hellocodenameone/win/pom.xml
+++ b/scripts/hellocodenameone/win/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
     <codename1.platform>win</codename1.platform>
       <codename1.projectPlatform>win</codename1.projectPlatform>
       <codename1.defaultBuildTarget>windows-device</codename1.defaultBuildTarget>

From 81ca9b9a356b20eea6289b8ae1037b9208612bd3 Mon Sep 17 00:00:00 2001
From: Shai Almog <67850168+shai-almog@users.noreply.github.com>
Date: Wed, 4 Mar 2026 21:33:56 +0200
Subject: [PATCH 2/8] Fix HelloCodenameOne test compiler level to Java 17

---
 scripts/hellocodenameone/common/pom.xml | 4 ++--
 scripts/hellocodenameone/pom.xml        | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/scripts/hellocodenameone/common/pom.xml b/scripts/hellocodenameone/common/pom.xml
index 539f3efa0a..a520ad1276 100644
--- a/scripts/hellocodenameone/common/pom.xml
+++ b/scripts/hellocodenameone/common/pom.xml
@@ -311,8 +311,8 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
                 </configuration>
             </plugin>
             <plugin>
diff --git a/scripts/hellocodenameone/pom.xml b/scripts/hellocodenameone/pom.xml
index f625da3f6c..9ce3339863 100644
--- a/scripts/hellocodenameone/pom.xml
+++ b/scripts/hellocodenameone/pom.xml
@@ -28,6 +28,8 @@
     <maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>
     <maven.compiler.source>17</maven.compiler.source>
     <maven.compiler.target>17</maven.compiler.target>
+    <maven.compiler.testSource>17</maven.compiler.testSource>
+    <maven.compiler.testTarget>17</maven.compiler.testTarget>
     <kotlin.compiler.jvmTarget>17</kotlin.compiler.jvmTarget>
     <cn1app.name>hellocodenameone</cn1app.name>
   </properties>

From 1ed1a7f98134dde7063aedbed93c87430e78c39d Mon Sep 17 00:00:00 2001
From: Shai Almog <67850168+shai-almog@users.noreply.github.com>
Date: Thu, 5 Mar 2026 07:10:21 +0200
Subject: [PATCH 3/8] Make Java 17 language test opt-in and restore Java 8
 defaults

---
 scripts/hellocodenameone/README.adoc          |  4 +--
 scripts/hellocodenameone/android/pom.xml      |  4 +--
 .../common/codenameone_settings.properties    |  2 +-
 scripts/hellocodenameone/common/pom.xml       | 36 +++++++++++++++++++
 .../Java17LanguageFeaturesTest.java           |  0
 scripts/hellocodenameone/ios/pom.xml          |  4 +--
 scripts/hellocodenameone/javascript/pom.xml   |  4 +--
 scripts/hellocodenameone/javase/pom.xml       |  4 +--
 scripts/hellocodenameone/pom.xml              | 12 +++----
 scripts/hellocodenameone/win/pom.xml          |  4 +--
 10 files changed, 54 insertions(+), 20 deletions(-)
 rename scripts/hellocodenameone/common/src/test/{java => java17}/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java (100%)

diff --git a/scripts/hellocodenameone/README.adoc b/scripts/hellocodenameone/README.adoc
index b335420f0e..0fc5af9fcd 100644
--- a/scripts/hellocodenameone/README.adoc
+++ b/scripts/hellocodenameone/README.adoc
@@ -10,8 +10,8 @@ If you plan to use Java as your primary language, https://shannah.github.io/cn1-
 
 === Java Version
 
-Use Java 17 to build and run this project (e.g. `JAVA_HOME` should point to a JDK 17 installation).
-
+The project defaults to Java 8 compatibility.
+To run the Java 17 language-feature test, use a JDK 17 and activate `-Dhellocodenameone.java17=true`.
 
 === Kotlin
 
diff --git a/scripts/hellocodenameone/android/pom.xml b/scripts/hellocodenameone/android/pom.xml
index bfb4ac0257..b72d6f7ffd 100644
--- a/scripts/hellocodenameone/android/pom.xml
+++ b/scripts/hellocodenameone/android/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>17</maven.compiler.source>
-    <maven.compiler.target>17</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
     <codename1.platform>android</codename1.platform>
       <codename1.projectPlatform>android</codename1.projectPlatform>
       <codename1.defaultBuildTarget>android-device</codename1.defaultBuildTarget>
diff --git a/scripts/hellocodenameone/common/codenameone_settings.properties b/scripts/hellocodenameone/common/codenameone_settings.properties
index dde08ababc..b388059468 100644
--- a/scripts/hellocodenameone/common/codenameone_settings.properties
+++ b/scripts/hellocodenameone/common/codenameone_settings.properties
@@ -2,7 +2,7 @@ codename1.android.keystore=
 codename1.android.keystoreAlias=
 codename1.android.keystorePassword=
 codename1.arg.ios.newStorageLocation=true
-codename1.arg.java.version=17
+codename1.arg.java.version=8
 codename1.displayName=HelloCodenameOne
 codename1.icon=icon.png
 codename1.arg.android.useAndroidX=true
diff --git a/scripts/hellocodenameone/common/pom.xml b/scripts/hellocodenameone/common/pom.xml
index a520ad1276..013122c513 100644
--- a/scripts/hellocodenameone/common/pom.xml
+++ b/scripts/hellocodenameone/common/pom.xml
@@ -303,6 +303,42 @@
                 <codename1.targetPlatform>javase</codename1.targetPlatform>
             </properties>
         </profile>
+        <profile>
+            <id>java17-language-tests</id>
+            <activation>
+                <property>
+                    <name>hellocodenameone.java17</name>
+                    <value>true</value>
+                </property>
+            </activation>
+            <properties>
+                <maven.compiler.testSource>17</maven.compiler.testSource>
+                <maven.compiler.testTarget>17</maven.compiler.testTarget>
+            </properties>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.codehaus.mojo</groupId>
+                        <artifactId>build-helper-maven-plugin</artifactId>
+                        <version>3.5.0</version>
+                        <executions>
+                            <execution>
+                                <id>add-java17-test-source</id>
+                                <phase>generate-test-sources</phase>
+                                <goals>
+                                    <goal>add-test-source</goal>
+                                </goals>
+                                <configuration>
+                                    <sources>
+                                        <source>${project.basedir}/src/test/java17</source>
+                                    </sources>
+                                </configuration>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
     </profiles>
 
     <build>
diff --git a/scripts/hellocodenameone/common/src/test/java/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java b/scripts/hellocodenameone/common/src/test/java17/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java
similarity index 100%
rename from scripts/hellocodenameone/common/src/test/java/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java
rename to scripts/hellocodenameone/common/src/test/java17/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java
diff --git a/scripts/hellocodenameone/ios/pom.xml b/scripts/hellocodenameone/ios/pom.xml
index 7e26e9a300..ccbad41f9f 100644
--- a/scripts/hellocodenameone/ios/pom.xml
+++ b/scripts/hellocodenameone/ios/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>17</maven.compiler.source>
-    <maven.compiler.target>17</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
     <codename1.platform>ios</codename1.platform>
       <codename1.projectPlatform>ios</codename1.projectPlatform>
       <codename1.defaultBuildTarget>ios-device</codename1.defaultBuildTarget>
diff --git a/scripts/hellocodenameone/javascript/pom.xml b/scripts/hellocodenameone/javascript/pom.xml
index 13f64ecfb7..b9bfdcee29 100644
--- a/scripts/hellocodenameone/javascript/pom.xml
+++ b/scripts/hellocodenameone/javascript/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>17</maven.compiler.source>
-    <maven.compiler.target>17</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
     <codename1.platform>javascript</codename1.platform>
       <codename1.projectPlatform>javascript</codename1.projectPlatform>
       <codename1.defaultBuildTarget>javascript</codename1.defaultBuildTarget>
diff --git a/scripts/hellocodenameone/javase/pom.xml b/scripts/hellocodenameone/javase/pom.xml
index 99fba47492..82ff468af0 100644
--- a/scripts/hellocodenameone/javase/pom.xml
+++ b/scripts/hellocodenameone/javase/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>17</maven.compiler.source>
-    <maven.compiler.target>17</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
     <codename1.platform>javase</codename1.platform>
       <codename1.projectPlatform>javase</codename1.projectPlatform>
   </properties>
diff --git a/scripts/hellocodenameone/pom.xml b/scripts/hellocodenameone/pom.xml
index 9ce3339863..04b3e490c5 100644
--- a/scripts/hellocodenameone/pom.xml
+++ b/scripts/hellocodenameone/pom.xml
@@ -22,15 +22,13 @@
     <cn1.plugin.version>8.0-SNAPSHOT</cn1.plugin.version>
     <cn1.version>8.0-SNAPSHOT</cn1.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <java.version>17</java.version>
-    <java-tests.version>17</java-tests.version>
+    <java.version>1.8</java.version>
+    <java-tests.version>11</java-tests.version>
     <rhino.version>1.7.11</rhino.version>
     <maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>
-    <maven.compiler.source>17</maven.compiler.source>
-    <maven.compiler.target>17</maven.compiler.target>
-    <maven.compiler.testSource>17</maven.compiler.testSource>
-    <maven.compiler.testTarget>17</maven.compiler.testTarget>
-    <kotlin.compiler.jvmTarget>17</kotlin.compiler.jvmTarget>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
+    <kotlin.compiler.jvmTarget>1.8</kotlin.compiler.jvmTarget>
     <cn1app.name>hellocodenameone</cn1app.name>
   </properties>
   <dependencyManagement>
diff --git a/scripts/hellocodenameone/win/pom.xml b/scripts/hellocodenameone/win/pom.xml
index f4776d4cee..81831387c2 100644
--- a/scripts/hellocodenameone/win/pom.xml
+++ b/scripts/hellocodenameone/win/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>17</maven.compiler.source>
-    <maven.compiler.target>17</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
     <codename1.platform>win</codename1.platform>
       <codename1.projectPlatform>win</codename1.projectPlatform>
       <codename1.defaultBuildTarget>windows-device</codename1.defaultBuildTarget>

From ff41ada397d0a3dfb0cfdcb1bd469628abc0cf32 Mon Sep 17 00:00:00 2001
From: Shai Almog <67850168+shai-almog@users.noreply.github.com>
Date: Thu, 5 Mar 2026 07:10:27 +0200
Subject: [PATCH 4/8] Restore Java 17 HelloCN1 setup and relax Java version
 parsing

---
 .../com/codename1/maven/CN1BuildMojo.java     | 34 ++++++++++++++---
 .../codename1/maven/InstallCn1libsMojo.java   | 34 ++++++++++++++---
 scripts/hellocodenameone/README.adoc          |  3 +-
 scripts/hellocodenameone/android/pom.xml      |  4 +-
 scripts/hellocodenameone/common/pom.xml       | 38 +------------------
 .../Java17LanguageFeaturesTest.java           |  0
 scripts/hellocodenameone/ios/pom.xml          |  4 +-
 scripts/hellocodenameone/javascript/pom.xml   |  4 +-
 scripts/hellocodenameone/javase/pom.xml       |  4 +-
 scripts/hellocodenameone/pom.xml              | 12 +++---
 scripts/hellocodenameone/win/pom.xml          |  4 +-
 11 files changed, 77 insertions(+), 64 deletions(-)
 rename scripts/hellocodenameone/common/src/test/{java17 => java}/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java (100%)

diff --git a/maven/codenameone-maven-plugin/src/main/java/com/codename1/maven/CN1BuildMojo.java b/maven/codenameone-maven-plugin/src/main/java/com/codename1/maven/CN1BuildMojo.java
index eac92a37e9..075822145a 100644
--- a/maven/codenameone-maven-plugin/src/main/java/com/codename1/maven/CN1BuildMojo.java
+++ b/maven/codenameone-maven-plugin/src/main/java/com/codename1/maven/CN1BuildMojo.java
@@ -1075,17 +1075,41 @@ private static class PropertyConflictException extends LibraryPropertiesExceptio
 
 
 
+
+    private static int parseJavaVersion(String version, int defaultValue) {
+        if (version == null) {
+            return defaultValue;
+        }
+        String normalized = version.trim();
+        if (normalized.isEmpty()) {
+            return defaultValue;
+        }
+        if (normalized.startsWith("1.")) {
+            normalized = normalized.substring(2);
+        }
+        int dotPos = normalized.indexOf('.');
+        if (dotPos > 0) {
+            normalized = normalized.substring(0, dotPos);
+        }
+        int dashPos = normalized.indexOf('-');
+        if (dashPos > 0) {
+            normalized = normalized.substring(0, dashPos);
+        }
+        try {
+            return Integer.parseInt(normalized);
+        } catch (NumberFormatException ex) {
+            return defaultValue;
+        }
+    }
+
     private SortedProperties mergeRequiredProperties(String libraryName, Properties libProps, Properties projectProps) throws LibraryPropertiesException {
 
 
         String javaVersion = (String)projectProps.getProperty("codename1.arg.java.version", "8");
         String javaVersionLib = (String)libProps.get("codename1.arg.java.version");
         if(javaVersionLib != null){
-            int v1 = 5;
-            if(javaVersion != null){
-                v1 = Integer.parseInt(javaVersion);
-            }
-            int v2 = Integer.parseInt(javaVersionLib);
+            int v1 = parseJavaVersion(javaVersion, 5);
+            int v2 = parseJavaVersion(javaVersionLib, 5);
             //if the lib java version is bigger, this library cannot be used
             if(v1 < v2){
                 throw new VersionMismatchException(libraryName, "Cannot use a cn1lib with java version "
diff --git a/maven/codenameone-maven-plugin/src/main/java/com/codename1/maven/InstallCn1libsMojo.java b/maven/codenameone-maven-plugin/src/main/java/com/codename1/maven/InstallCn1libsMojo.java
index 0725d70201..fb84db942c 100644
--- a/maven/codenameone-maven-plugin/src/main/java/com/codename1/maven/InstallCn1libsMojo.java
+++ b/maven/codenameone-maven-plugin/src/main/java/com/codename1/maven/InstallCn1libsMojo.java
@@ -230,6 +230,33 @@ private boolean mergeProjectAppendedProperties(Artifact artifact) throws IOExcep
         return changed;
     }
     
+
+    private static int parseJavaVersion(String version, int defaultValue) {
+        if (version == null) {
+            return defaultValue;
+        }
+        String normalized = version.trim();
+        if (normalized.isEmpty()) {
+            return defaultValue;
+        }
+        if (normalized.startsWith("1.")) {
+            normalized = normalized.substring(2);
+        }
+        int dotPos = normalized.indexOf('.');
+        if (dotPos > 0) {
+            normalized = normalized.substring(0, dotPos);
+        }
+        int dashPos = normalized.indexOf('-');
+        if (dashPos > 0) {
+            normalized = normalized.substring(0, dashPos);
+        }
+        try {
+            return Integer.parseInt(normalized);
+        } catch (NumberFormatException ex) {
+            return defaultValue;
+        }
+    }
+
     /**
      * Merges the lib's required properties with the project properties.  Does not persist.
      * @param artifact
@@ -244,11 +271,8 @@ private boolean mergeProjectRequiredProperties(Artifact artifact) throws IOExcep
         String javaVersion = (String)projectProps.getProperty("codename1.arg.java.version", "8");
         String javaVersionLib = (String)libProps.get("codename1.arg.java.version");
         if(javaVersionLib != null){
-            int v1 = 5;
-            if(javaVersion != null){
-                v1 = Integer.parseInt(javaVersion);
-            }
-            int v2 = Integer.parseInt(javaVersionLib);
+            int v1 = parseJavaVersion(javaVersion, 5);
+            int v2 = parseJavaVersion(javaVersionLib, 5);
             //if the lib java version is bigger, this library cannot be used
             if(v1 < v2){
                 throw new BuildException("Cannot use a cn1lib with java version "
diff --git a/scripts/hellocodenameone/README.adoc b/scripts/hellocodenameone/README.adoc
index 0fc5af9fcd..95911cb422 100644
--- a/scripts/hellocodenameone/README.adoc
+++ b/scripts/hellocodenameone/README.adoc
@@ -10,8 +10,7 @@ If you plan to use Java as your primary language, https://shannah.github.io/cn1-
 
 === Java Version
 
-The project defaults to Java 8 compatibility.
-To run the Java 17 language-feature test, use a JDK 17 and activate `-Dhellocodenameone.java17=true`.
+Use Java 17 to build and run this project (e.g. `JAVA_HOME` should point to a JDK 17 installation).
 
 === Kotlin
 
diff --git a/scripts/hellocodenameone/android/pom.xml b/scripts/hellocodenameone/android/pom.xml
index b72d6f7ffd..bfb4ac0257 100644
--- a/scripts/hellocodenameone/android/pom.xml
+++ b/scripts/hellocodenameone/android/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
     <codename1.platform>android</codename1.platform>
       <codename1.projectPlatform>android</codename1.projectPlatform>
       <codename1.defaultBuildTarget>android-device</codename1.defaultBuildTarget>
diff --git a/scripts/hellocodenameone/common/pom.xml b/scripts/hellocodenameone/common/pom.xml
index 013122c513..142ce7943d 100644
--- a/scripts/hellocodenameone/common/pom.xml
+++ b/scripts/hellocodenameone/common/pom.xml
@@ -303,43 +303,7 @@
                 <codename1.targetPlatform>javase</codename1.targetPlatform>
             </properties>
         </profile>
-        <profile>
-            <id>java17-language-tests</id>
-            <activation>
-                <property>
-                    <name>hellocodenameone.java17</name>
-                    <value>true</value>
-                </property>
-            </activation>
-            <properties>
-                <maven.compiler.testSource>17</maven.compiler.testSource>
-                <maven.compiler.testTarget>17</maven.compiler.testTarget>
-            </properties>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.codehaus.mojo</groupId>
-                        <artifactId>build-helper-maven-plugin</artifactId>
-                        <version>3.5.0</version>
-                        <executions>
-                            <execution>
-                                <id>add-java17-test-source</id>
-                                <phase>generate-test-sources</phase>
-                                <goals>
-                                    <goal>add-test-source</goal>
-                                </goals>
-                                <configuration>
-                                    <sources>
-                                        <source>${project.basedir}/src/test/java17</source>
-                                    </sources>
-                                </configuration>
-                            </execution>
-                        </executions>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-    </profiles>
+            </profiles>
 
     <build>
         <plugins>
diff --git a/scripts/hellocodenameone/common/src/test/java17/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java b/scripts/hellocodenameone/common/src/test/java/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java
similarity index 100%
rename from scripts/hellocodenameone/common/src/test/java17/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java
rename to scripts/hellocodenameone/common/src/test/java/com/codenameone/examples/hellocodenameone/Java17LanguageFeaturesTest.java
diff --git a/scripts/hellocodenameone/ios/pom.xml b/scripts/hellocodenameone/ios/pom.xml
index ccbad41f9f..7e26e9a300 100644
--- a/scripts/hellocodenameone/ios/pom.xml
+++ b/scripts/hellocodenameone/ios/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
     <codename1.platform>ios</codename1.platform>
       <codename1.projectPlatform>ios</codename1.projectPlatform>
       <codename1.defaultBuildTarget>ios-device</codename1.defaultBuildTarget>
diff --git a/scripts/hellocodenameone/javascript/pom.xml b/scripts/hellocodenameone/javascript/pom.xml
index b9bfdcee29..13f64ecfb7 100644
--- a/scripts/hellocodenameone/javascript/pom.xml
+++ b/scripts/hellocodenameone/javascript/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
     <codename1.platform>javascript</codename1.platform>
       <codename1.projectPlatform>javascript</codename1.projectPlatform>
       <codename1.defaultBuildTarget>javascript</codename1.defaultBuildTarget>
diff --git a/scripts/hellocodenameone/javase/pom.xml b/scripts/hellocodenameone/javase/pom.xml
index 82ff468af0..99fba47492 100644
--- a/scripts/hellocodenameone/javase/pom.xml
+++ b/scripts/hellocodenameone/javase/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
     <codename1.platform>javase</codename1.platform>
       <codename1.projectPlatform>javase</codename1.projectPlatform>
   </properties>
diff --git a/scripts/hellocodenameone/pom.xml b/scripts/hellocodenameone/pom.xml
index 04b3e490c5..9ce3339863 100644
--- a/scripts/hellocodenameone/pom.xml
+++ b/scripts/hellocodenameone/pom.xml
@@ -22,13 +22,15 @@
     <cn1.plugin.version>8.0-SNAPSHOT</cn1.plugin.version>
     <cn1.version>8.0-SNAPSHOT</cn1.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <java.version>1.8</java.version>
-    <java-tests.version>11</java-tests.version>
+    <java.version>17</java.version>
+    <java-tests.version>17</java-tests.version>
     <rhino.version>1.7.11</rhino.version>
     <maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
-    <kotlin.compiler.jvmTarget>1.8</kotlin.compiler.jvmTarget>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
+    <maven.compiler.testSource>17</maven.compiler.testSource>
+    <maven.compiler.testTarget>17</maven.compiler.testTarget>
+    <kotlin.compiler.jvmTarget>17</kotlin.compiler.jvmTarget>
     <cn1app.name>hellocodenameone</cn1app.name>
   </properties>
   <dependencyManagement>
diff --git a/scripts/hellocodenameone/win/pom.xml b/scripts/hellocodenameone/win/pom.xml
index 81831387c2..f4776d4cee 100644
--- a/scripts/hellocodenameone/win/pom.xml
+++ b/scripts/hellocodenameone/win/pom.xml
@@ -14,8 +14,8 @@
   
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
     <codename1.platform>win</codename1.platform>
       <codename1.projectPlatform>win</codename1.projectPlatform>
       <codename1.defaultBuildTarget>windows-device</codename1.defaultBuildTarget>

From 1d1a059b09d508300b66588a6d558c85997af9d0 Mon Sep 17 00:00:00 2001
From: Shai Almog <67850168+shai-almog@users.noreply.github.com>
Date: Thu, 5 Mar 2026 08:17:29 +0200
Subject: [PATCH 5/8] Make HelloCodenameOne Maven wrapper prefer JDK 17

---
 scripts/hellocodenameone/mvnw     | 17 +++++++++++++++++
 scripts/hellocodenameone/mvnw.cmd |  7 +++++++
 2 files changed, 24 insertions(+)

diff --git a/scripts/hellocodenameone/mvnw b/scripts/hellocodenameone/mvnw
index 41c0f0c23d..b2a8f18832 100755
--- a/scripts/hellocodenameone/mvnw
+++ b/scripts/hellocodenameone/mvnw
@@ -72,6 +72,23 @@ if [ -z "$JAVA_HOME" ] ; then
   fi
 fi
 
+is_java17_home() {
+  if [ -z "$1" ] || [ ! -x "$1/bin/java" ]; then
+    return 1
+  fi
+  "$1/bin/java" -version 2>&1 | head -n 1 | grep -q '"17'
+}
+
+if ! is_java17_home "$JAVA_HOME" ; then
+  for candidate in /usr/lib/jvm/java-17-openjdk-amd64 /usr/lib/jvm/java-17-openjdk /usr/lib/jvm/jdk-17 /usr/lib/jvm/*17*; do
+    if is_java17_home "$candidate" ; then
+      JAVA_HOME="$candidate"
+      export JAVA_HOME
+      break
+    fi
+  done
+fi
+
 if [ -z "$M2_HOME" ] ; then
   ## resolve links - $0 may be a link to maven's home
   PRG="$0"
diff --git a/scripts/hellocodenameone/mvnw.cmd b/scripts/hellocodenameone/mvnw.cmd
index 86115719e5..9b2c7ad636 100644
--- a/scripts/hellocodenameone/mvnw.cmd
+++ b/scripts/hellocodenameone/mvnw.cmd
@@ -54,6 +54,13 @@ if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
 
 set ERROR_CODE=0
 
+@REM Prefer JDK 17 when available because this project compiles with target 17.
+if not "%JAVA_HOME%" == "" (
+    "%JAVA_HOME%\bin\java.exe" -version 2>&1 | findstr /c:"17" >nul
+)
+if errorlevel 1 if exist "C:\Program Files\Java\jdk-17\bin\java.exe" set "JAVA_HOME=C:\Program Files\Java\jdk-17"
+if errorlevel 1 if exist "C:\Program Files\Eclipse Adoptium\jdk-17\bin\java.exe" set "JAVA_HOME=C:\Program Files\Eclipse Adoptium\jdk-17"
+
 @REM To isolate internal variables from possible post scripts, we use another setlocal
 @setlocal
 

From b1aafb5b04bafb1ab7e660cbdbb618ae422199c5 Mon Sep 17 00:00:00 2001
From: Shai Almog <67850168+shai-almog@users.noreply.github.com>
Date: Thu, 5 Mar 2026 16:03:30 +0200
Subject: [PATCH 6/8] Add StringConcatFactory stubs to JavaAPI and CLDC11

---
 .../java/lang/invoke/StringConcatFactory.java | 42 +++++++++++++++++++
 .../java/lang/invoke/StringConcatFactory.java | 42 +++++++++++++++++++
 2 files changed, 84 insertions(+)
 create mode 100644 Ports/CLDC11/src/java/lang/invoke/StringConcatFactory.java
 create mode 100644 vm/JavaAPI/src/java/lang/invoke/StringConcatFactory.java

diff --git a/Ports/CLDC11/src/java/lang/invoke/StringConcatFactory.java b/Ports/CLDC11/src/java/lang/invoke/StringConcatFactory.java
new file mode 100644
index 0000000000..140c598ced
--- /dev/null
+++ b/Ports/CLDC11/src/java/lang/invoke/StringConcatFactory.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores
+ * CA 94065 USA or visit www.oracle.com if you need additional information or
+ * have any questions.
+ */
+package java.lang.invoke;
+
+/**
+ * @deprecated this class is used internally for String concatenation compatibility
+ */
+public final class StringConcatFactory {
+    private StringConcatFactory() {
+    }
+
+    public static CallSite makeConcat(MethodHandles.Lookup lookup, String name,
+            MethodType concatType) {
+        return null;
+    }
+
+    public static CallSite makeConcatWithConstants(MethodHandles.Lookup lookup, String name,
+            MethodType concatType, String recipe, Object... constants) {
+        return null;
+    }
+}
diff --git a/vm/JavaAPI/src/java/lang/invoke/StringConcatFactory.java b/vm/JavaAPI/src/java/lang/invoke/StringConcatFactory.java
new file mode 100644
index 0000000000..140c598ced
--- /dev/null
+++ b/vm/JavaAPI/src/java/lang/invoke/StringConcatFactory.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores
+ * CA 94065 USA or visit www.oracle.com if you need additional information or
+ * have any questions.
+ */
+package java.lang.invoke;
+
+/**
+ * @deprecated this class is used internally for String concatenation compatibility
+ */
+public final class StringConcatFactory {
+    private StringConcatFactory() {
+    }
+
+    public static CallSite makeConcat(MethodHandles.Lookup lookup, String name,
+            MethodType concatType) {
+        return null;
+    }
+
+    public static CallSite makeConcatWithConstants(MethodHandles.Lookup lookup, String name,
+            MethodType concatType, String recipe, Object... constants) {
+        return null;
+    }
+}

From 65fe9d474217d9c8d42cd5712580c0f874fdb1ca Mon Sep 17 00:00:00 2001
From: Shai Almog <67850168+shai-almog@users.noreply.github.com>
Date: Thu, 5 Mar 2026 16:31:59 +0200
Subject: [PATCH 7/8] Use JDK 17 in iOS scripts workflow for HelloCodenameOne
 build

---
 .github/workflows/scripts-ios.yml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/.github/workflows/scripts-ios.yml b/.github/workflows/scripts-ios.yml
index 073c7d4ac9..bcf0dfd13b 100644
--- a/.github/workflows/scripts-ios.yml
+++ b/.github/workflows/scripts-ios.yml
@@ -76,6 +76,13 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: '17'
+          cache: maven
+
       - name: Ensure CocoaPods tooling
         run: |
           mkdir -p ~/.codenameone

From 2d1e791f2e6e7382d042f60fb1cdea2306c046af Mon Sep 17 00:00:00 2001
From: Shai Almog <67850168+shai-almog@users.noreply.github.com>
Date: Thu, 5 Mar 2026 18:06:20 +0200
Subject: [PATCH 8/8] Use JAVA17_HOME for iOS app Maven build

---
 scripts/build-ios-app.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/scripts/build-ios-app.sh b/scripts/build-ios-app.sh
index b18451d73a..1a6fd5145e 100755
--- a/scripts/build-ios-app.sh
+++ b/scripts/build-ios-app.sh
@@ -54,12 +54,17 @@ if ! command -v pod >/dev/null 2>&1; then
   exit 1
 fi
 
+ORIGINAL_JAVA_HOME="$JAVA_HOME"
+export JAVA_HOME="$JAVA17_HOME"
 export PATH="$JAVA_HOME/bin:$MAVEN_HOME/bin:$PATH"
 
 bia_log "Using JAVA_HOME at $JAVA_HOME"
+bia_log "Original JAVA_HOME was $ORIGINAL_JAVA_HOME"
 bia_log "Using JAVA17_HOME at $JAVA17_HOME"
 bia_log "Using Maven installation at $MAVEN_HOME"
 bia_log "Using CocoaPods version $(pod --version 2>/dev/null || echo '<unknown>')"
+bia_log "Java version for Maven invocations:"
+"$JAVA_HOME/bin/java" -version
 
 APP_DIR="scripts/hellocodenameone"