Add experimental Java 17 option to Initializr

scripts/initializr/common/src/main/java/com/codename1/initializr/Initializr.java

@@ -50,6 +50,7 @@ public void runApp() {
         final boolean[] roundedButtons = new boolean[]{true};
         final boolean[] includeLocalizationBundles = new boolean[]{true};
         final ProjectOptions.PreviewLanguage[] previewLanguage = new ProjectOptions.PreviewLanguage[]{ProjectOptions.PreviewLanguage.ENGLISH};
+        final ProjectOptions.JavaVersion[] javaVersion = new ProjectOptions.JavaVersion[]{ProjectOptions.JavaVersion.JAVA_8};
         final RadioButton[] templateButtons = new RadioButton[Template.values().length];
         final SpanLabel summaryLabel = new SpanLabel();
         final TemplatePreviewPanel previewPanel = new TemplatePreviewPanel(selectedTemplate[0]);
@@ -69,7 +70,7 @@ public void runApp() {
             public void run() {
                 ProjectOptions options = new ProjectOptions(
                         selectedThemeMode[0], selectedAccent[0], roundedButtons[0],
-                        includeLocalizationBundles[0], previewLanguage[0]
+                        includeLocalizationBundles[0], previewLanguage[0], javaVersion[0]
                 );
                 previewPanel.setTemplate(selectedTemplate[0]);
                 previewPanel.setOptions(options);
@@ -99,13 +100,15 @@ public void run() {
         final Container idePanel = createIdeSelectorPanel(selectedIde, refresh);
         final Container themePanel = createThemeOptionsPanel(selectedThemeMode, selectedAccent, roundedButtons, refresh);
         final Container localizationPanel = createLocalizationPanel(includeLocalizationBundles, previewLanguage, refresh, previewPanel);
+        final Container javaPanel = createJavaOptionsPanel(javaVersion, refresh);
         themePanelRef[0] = themePanel;
         final Container settingsPanel = BoxLayout.encloseY(summaryLabel);
 
         Accordion advancedAccordion = new Accordion();
         advancedAccordion.addContent("IDE", idePanel);
         advancedAccordion.addContent("Theme Customization", themePanel);
         advancedAccordion.addContent("Localization", localizationPanel);
+        advancedAccordion.addContent("Java Version", javaPanel);
         advancedAccordion.addContent("Current Settings", settingsPanel);
         advancedAccordion.setAutoClose(false);
         advancedAccordion.setScrollable(false);
@@ -133,7 +136,7 @@ public void run() {
             String packageName = packageField.getText() == null ? "" : packageField.getText().trim();
             ProjectOptions options = new ProjectOptions(
                     selectedThemeMode[0], selectedAccent[0], roundedButtons[0],
-                    includeLocalizationBundles[0], previewLanguage[0]
+                    includeLocalizationBundles[0], previewLanguage[0], javaVersion[0]
             );
             GeneratorModel.create(selectedIde[0], selectedTemplate[0], appName, packageName, options).generate();
         });
@@ -314,6 +317,31 @@ private Container createThemeOptionsPanel(ProjectOptions.ThemeMode[] selectedThe
         );
     }
 
+
+    private Container createJavaOptionsPanel(ProjectOptions.JavaVersion[] javaVersion, Runnable onSelectionChanged) {
+        Container selector = new Container(new GridLayout(2, 1));
+        selector.setUIID("InitializrChoicesGrid");
+        ButtonGroup group = new ButtonGroup();
+
+        for (ProjectOptions.JavaVersion version : ProjectOptions.JavaVersion.values()) {
+            RadioButton button = new RadioButton(version.label);
+            button.setToggle(true);
+            button.setUIID("InitializrChoice");
+            group.add(button);
+            selector.add(button);
+            if (version == javaVersion[0]) {
+                button.setSelected(true);
+            }
+            button.addActionListener(evt -> {
+                if (button.isSelected()) {
+                    javaVersion[0] = version;
+                    onSelectionChanged.run();
+                }
+            });
+        }
+        return selector;
+    }
+
     private Container createTemplateSelector(Template[] selectedTemplate, RadioButton[] templateButtons, Runnable onSelectionChanged) {
         Container selector = new Container(new GridLayout(2, 2));
         selector.setUIID("InitializrChoicesGrid");
@@ -509,6 +537,7 @@ private String createSummary(String appName, String packageName, Template templa
                 + "Rounded Buttons: " + (options.roundedButtons ? "Yes" : "No") + "\n"
                 + "Localization Bundles: " + (options.includeLocalizationBundles ? "Yes" : "No") + "\n"
                 + "Preview Language: " + options.previewLanguage.label + "\n"
+                + "Java: " + options.javaVersion.label + "\n"
                 + "Kotlin: " + (template.IS_KOTLIN ? "Yes" : "No");
     }
 

scripts/initializr/common/src/main/java/com/codename1/initializr/model/GeneratorModel.java

@@ -179,13 +179,17 @@ private byte[] applyDataReplacements(String targetPath, byte[] sourceData) throw
         content = StringUtil.replaceAll(content, "myappname", appName.toLowerCase());
         if ("common/codenameone_settings.properties".equals(targetPath)) {
             content = replaceProperty(content, "codename1.kotlin", String.valueOf(template.IS_KOTLIN));
+            content = applyJavaVersionSettings(content);
         }
         if (options.includeLocalizationBundles && isBareTemplate()) {
             content = injectLocalizationBootstrap(targetPath, content);
         }
         if (isBareTemplate() && "common/src/main/css/theme.css".equals(targetPath)) {
             content += buildThemeOverrides();
         }
+        if ("common/pom.xml".equals(targetPath)) {
+            content = applyJavaVersionToPom(content);
+        }
         if ("pom.xml".equals(targetPath)) {
             content = replaceTagValue(content, "cn1.plugin.version", CN1_PLUGIN_VERSION);
         }
@@ -196,6 +200,23 @@ private byte[] applyDataReplacements(String targetPath, byte[] sourceData) throw
     }
 
 
+
+    private String applyJavaVersionSettings(String content) {
+        if (options.javaVersion == ProjectOptions.JavaVersion.JAVA_17_EXPERIMENTAL) {
+            content = replaceProperty(content, "codename1.arg.java.version", "17");
+        }
+        return content;
+    }
+
+    private String applyJavaVersionToPom(String content) {
+        if (options.javaVersion != ProjectOptions.JavaVersion.JAVA_17_EXPERIMENTAL) {
+            return content;
+        }
+        content = StringUtil.replaceAll(content, "<source>1.8</source>", "<source>17</source>");
+        content = StringUtil.replaceAll(content, "<target>1.8</target>", "<target>17</target>");
+        return content;
+    }
+
     private String injectLocalizationBootstrap(String targetPath, String content) {
         String javaMainPath = "common/src/main/java/" + packageName.replace('.', '/') + "/" + appName + ".java";
         String kotlinMainPath = "common/src/main/kotlin/" + packageName.replace('.', '/') + "/" + appName + ".kt";

scripts/initializr/common/src/main/java/com/codename1/initializr/model/ProjectOptions.java

@@ -43,22 +43,41 @@ public enum Accent {
         ORANGE
     }
 
+    public enum JavaVersion {
+        JAVA_8("Java 8"),
+        JAVA_17_EXPERIMENTAL("Java 17 (Experimental)");
+
+        public final String label;
+
+        JavaVersion(String label) {
+            this.label = label;
+        }
+
+        @Override
+        public String toString() {
+            return label;
+        }
+    }
+
     public final ThemeMode themeMode;
     public final Accent accent;
     public final boolean roundedButtons;
     public final boolean includeLocalizationBundles;
     public final PreviewLanguage previewLanguage;
+    public final JavaVersion javaVersion;
 
     public ProjectOptions(ThemeMode themeMode, Accent accent, boolean roundedButtons,
-                          boolean includeLocalizationBundles, PreviewLanguage previewLanguage) {
+                          boolean includeLocalizationBundles, PreviewLanguage previewLanguage,
+                          JavaVersion javaVersion) {
         this.themeMode = themeMode;
         this.accent = accent;
         this.roundedButtons = roundedButtons;
         this.includeLocalizationBundles = includeLocalizationBundles;
         this.previewLanguage = previewLanguage == null ? PreviewLanguage.ENGLISH : previewLanguage;
+        this.javaVersion = javaVersion == null ? JavaVersion.JAVA_8 : javaVersion;
     }
 
     public static ProjectOptions defaults() {
-        return new ProjectOptions(ThemeMode.LIGHT, Accent.DEFAULT, true, true, PreviewLanguage.ENGLISH);
+        return new ProjectOptions(ThemeMode.LIGHT, Accent.DEFAULT, true, true, PreviewLanguage.ENGLISH, JavaVersion.JAVA_8);
     }
 }