Add useSwiftJavaJniCore option to control generated imports

build.gradle

@@ -11,7 +11,7 @@ buildscript {
 
     dependencies {
         classpath 'com.android.tools.build:gradle:8.3.2'
-        classpath "com.readdle.android.swift:gradle:6.0.3"
+        classpath "com.readdle.android.swift:gradle:6.2.1"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlin_version"
         classpath 'io.github.gradle-nexus:publish-plugin:1.1.0'
@@ -34,5 +34,5 @@ apply from: "${rootDir}/publish-root.gradle"
 
 ext {
     PUBLISH_GROUP_ID = 'com.readdle.swift.java.codegen'
-    PUBLISH_VERSION = "0.9.6"
+    PUBLISH_VERSION = "0.9.7"
 }

compiler/src/main/java/com/readdle/codegen/JavaSwiftProcessor.java

@@ -122,6 +122,11 @@ private boolean processImpl(Set<? extends TypeElement> annotations, RoundEnviron
         Filer filer = processingEnv.getFiler();
         note("JavaSwiftProcessor start code generation");
 
+        if (moduleDescriptor == null) {
+            messager.printMessage(Diagnostic.Kind.ERROR, "No package description with SwiftModule.class", null);
+            return true; // Exit processing
+        }
+
         try {
             generateJavaSwift(filer);
         } catch (IOException e) {
@@ -143,11 +148,6 @@ private boolean processImpl(Set<? extends TypeElement> annotations, RoundEnviron
         Map<String, SwiftDelegateDescriptor> swiftDelegates = new HashMap<>();
         Map<String, SwiftBlockDescriptor> swiftBlocks = new HashMap<>();
 
-        if (moduleDescriptor == null) {
-            messager.printMessage(Diagnostic.Kind.ERROR, "No package description with SwiftModule.class", null);
-            return true; // Exit processing
-        }
-
         for (Element annotatedElement : roundEnv.getElementsAnnotatedWith(SwiftValue.class)) {
             // Check if a class has been annotated with @SwiftValue
             if (annotatedElement.getKind() != ElementKind.CLASS && annotatedElement.getKind() != ElementKind.ENUM) {
@@ -309,7 +309,7 @@ private void generateJavaSwift(Filer filer) throws IOException {
         swiftExtensionFile.getParentFile().mkdir();
         note("JavaSwiftProcessor will generate sources at: " + swiftExtensionFile.getParent());
         SwiftWriter swiftWriter = new SwiftWriter(swiftExtensionFile);
-        swiftWriter.emitImports(new String[0]);
+        swiftWriter.emitImports(new String[0], moduleDescriptor.useSwiftJavaJniCore);
         swiftWriter.emitEmptyLine();
         swiftWriter.emitStatement("public let SwiftErrorClass = JNI.GlobalFindClass(\"com/readdle/codegen/anotation/SwiftError\")");
         swiftWriter.emitStatement("public let SwiftRuntimeErrorClass = JNI.GlobalFindClass(\"com/readdle/codegen/anotation/SwiftRuntimeError\")");

compiler/src/main/java/com/readdle/codegen/SwiftBlockDescriptor.java

@@ -30,6 +30,7 @@ class SwiftBlockDescriptor {
     String simpleTypeName;
     private String swiftType;
     private String[] importPackages;
+    private boolean useSwiftJavaJniCore;
 
     private String blockSignature;
 
@@ -44,6 +45,7 @@ class SwiftBlockDescriptor {
     SwiftBlockDescriptor(TypeElement classElement, Filer filer, JavaSwiftProcessor processor) throws IllegalArgumentException {
         this.annotatedClassElement = classElement;
         this.importPackages = processor.moduleDescriptor.importPackages;
+        this.useSwiftJavaJniCore = processor.moduleDescriptor.useSwiftJavaJniCore;
 
         // Get the full QualifiedTypeName
         try {
@@ -114,7 +116,7 @@ File generateCode() throws IOException {
         SwiftWriter swiftWriter = new SwiftWriter(swiftExtensionFile);
 
         // Write imports
-        swiftWriter.emitImports(importPackages);
+        swiftWriter.emitImports(importPackages, useSwiftJavaJniCore);
         swiftWriter.emitEmptyLine();
 
         swiftWriter.emitStatement(String.format("private let javaClass = JNI.GlobalFindClass(\"%s\")!", javaFullName));

compiler/src/main/java/com/readdle/codegen/SwiftDelegateDescriptor.java

@@ -33,6 +33,7 @@ class SwiftDelegateDescriptor {
     private String javaFullName;
     String simpleTypeName;
     private String[] importPackages;
+    private boolean useSwiftJavaJniCore;
     private String pointerBasicTypeSig;
 
     List<SwiftFuncDescriptor> functions = new LinkedList<>();
@@ -45,6 +46,7 @@ class SwiftDelegateDescriptor {
         this.annotatedClassElement = classElement;
         this.isInterface = classElement.getKind() == ElementKind.INTERFACE;
         this.importPackages = processor.moduleDescriptor.importPackages;
+        this.useSwiftJavaJniCore = processor.moduleDescriptor.useSwiftJavaJniCore;
 
         // Get the full QualifiedTypeName
         try {
@@ -179,7 +181,7 @@ File generateCode() throws IOException {
         SwiftWriter swiftWriter = new SwiftWriter(swiftExtensionFile);
 
         // Write imports
-        swiftWriter.emitImports(importPackages);
+        swiftWriter.emitImports(importPackages, useSwiftJavaJniCore);
         swiftWriter.emitEmptyLine();
 
         swiftWriter.emitStatement(String.format("private let javaClass = JNI.GlobalFindClass(\"%s\")!", javaFullName));

compiler/src/main/java/com/readdle/codegen/SwiftModuleDescriptor.java

@@ -7,5 +7,6 @@ class SwiftModuleDescriptor {
     String moduleName;
     String[] importPackages;
     HashMap<String, String> customTypeMappings;
+    boolean useSwiftJavaJniCore;
 
 }

compiler/src/main/java/com/readdle/codegen/SwiftReferenceDescriptor.java

@@ -30,11 +30,13 @@ class SwiftReferenceDescriptor {
     private String javaFullName;
     private String simpleTypeName;
     private String[] importPackages;
+    private boolean useSwiftJavaJniCore;
 
     List<JavaSwiftProcessor.WritableElement> functions = new LinkedList<>();
 
     SwiftReferenceDescriptor(TypeElement classElement, Filer filer, JavaSwiftProcessor processor) throws IllegalArgumentException {
         this.importPackages = processor.moduleDescriptor.importPackages;
+        this.useSwiftJavaJniCore = processor.moduleDescriptor.useSwiftJavaJniCore;
 
         // Get the full QualifiedTypeName
         try {
@@ -136,7 +138,7 @@ File generateCode() throws IOException {
         SwiftWriter swiftWriter = new SwiftWriter(swiftExtensionFile);
 
         // Write imports
-        swiftWriter.emitImports(importPackages);
+        swiftWriter.emitImports(importPackages, useSwiftJavaJniCore);
         swiftWriter.emitEmptyLine();
 
         swiftWriter.emitStatement(String.format("private let javaClass = JNI.GlobalFindClass(\"%s\")!", javaFullName));

compiler/src/main/java/com/readdle/codegen/SwiftValueDescriptor.java

@@ -30,13 +30,15 @@ class SwiftValueDescriptor {
     private String javaFullName;
     private String simpleTypeName;
     private String[] importPackages;
+    private boolean useSwiftJavaJniCore;
 
     private boolean hasSubclasses = false;
 
     private List<JavaSwiftProcessor.WritableElement> functions = new LinkedList<>();
 
     SwiftValueDescriptor(TypeElement classElement, Filer filer, JavaSwiftProcessor processor) throws IllegalArgumentException {
         this.importPackages = processor.moduleDescriptor.importPackages;
+        this.useSwiftJavaJniCore = processor.moduleDescriptor.useSwiftJavaJniCore;
 
         // Get the full QualifiedTypeName
         try {
@@ -112,7 +114,7 @@ File generateCode() throws IOException {
         SwiftWriter swiftWriter = new SwiftWriter(swiftExtensionFile);
 
         // Write imports
-        swiftWriter.emitImports(importPackages);
+        swiftWriter.emitImports(importPackages, useSwiftJavaJniCore);
 
         swiftWriter.emitEmptyLine();
         swiftWriter.beginExtension(simpleTypeName);

compiler/src/main/java/com/readdle/codegen/SwiftWriter.java

@@ -69,14 +69,22 @@ public void close() throws IOException {
         this.writer.close();
     }
 
-    private static final String[] defaultImports = {"Foundation", "Java", "java_swift", "JavaCoder", "AnyCodable"};
+    // Readdle stack dependencies
+    private static final String[] legacyDefaultImports = {"Foundation", "Java", "java_swift", "JavaCoder", "AnyCodable"};
 
-    public void emitImports(String[] importPackages) throws IOException {
+    // swiftlang jni-core based stack: JavaCoder + java_swift compatibility shim.
+    private static final String[] jniCoreDefaultImports = {"Foundation", "java_swift", "JavaCoder", "AnyCodable"};
+
+    static String[] defaultImports(boolean useSwiftJavaJniCore) {
+        return useSwiftJavaJniCore ? jniCoreDefaultImports : legacyDefaultImports;
+    }
+
+    public void emitImports(String[] importPackages, boolean useSwiftJavaJniCore) throws IOException {
         this.writer.append("/* This file was generated with Readdle SwiftJava Codegen */\n");
         this.writer.append("/* Don't change it manually! */\n");
 
         List<String> allPackages = new ArrayList<>();
-        allPackages.addAll(Arrays.asList(defaultImports));
+        allPackages.addAll(Arrays.asList(defaultImports(useSwiftJavaJniCore)));
         allPackages.addAll(Arrays.asList(importPackages));
         Collections.sort(allPackages, Collator.getInstance(Locale.US));
 

publish-module.gradle

@@ -46,6 +46,11 @@ ext["signing.keyId"] = rootProject.ext["signing.keyId"]
 ext["signing.password"] = rootProject.ext["signing.password"]
 ext["signing.secretKeyRingFile"] = rootProject.ext["signing.secretKeyRingFile"]
 
-signing {
-    sign publishing.publications
+// Only configure signing when a signing key is available (CI/remote release).
+// This lets `publishToMavenLocal` work locally without GPG keys configured.
+def signingKeyId = (rootProject.ext["signing.keyId"] ?: "").toString().trim()
+if (!signingKeyId.isEmpty()) {
+    signing {
+        sign publishing.publications
+    }
 }