fix codegen tests

Author: madsodgaard

Samples/SwiftJavaExtractJNISampleApp/Sources/MySwiftLibrary/Async.swift

@@ -36,28 +36,3 @@ public func asyncOptional(i: Int64) async throws -> Int64? {
 public func asyncThrows() async throws {
   throw MySwiftError.swiftError
 }
-
-public func asyncRunningSum() async -> Int64 {
-    let totalSum = await withTaskGroup(of: Int64.self) { group in
-        // 1. Add child tasks to the group
-        for number in stride(from: Int64(1), through: 100, by: 1) {
-            group.addTask {
-                try? await Task.sleep(for: .milliseconds(number))
-                return number
-            }
-        }
-
-        var collectedSum: Int64 = 0
-
-        // `for await ... in group` loops as each child task completes,
-        // (not necessarily in the order they were added).
-        for await number in group {
-            collectedSum += number
-        }
-
-        return collectedSum
-    }
-
-    // This is the value returned by the `withTaskGroup` closure.
-    return totalSum
-}

Sources/JExtractSwiftLib/JNI/JNISwift2JavaGenerator+JavaTranslation.swift

@@ -1096,10 +1096,6 @@ extension JNISwift2JavaGenerator {
       case .replacingPlaceholder(let inner, let placeholder):
         return inner.render(&printer, placeholder)
 
-      case .return(let inner):
-        let inner = inner.render(&printer, placeholder)
-        return "return \(inner);"
-
       case .lambda(let args, let body):
         var printer = CodePrinter()
         printer.printBraceBlock("(\(args.joined(separator: ", "))) ->") { printer in
@@ -1112,9 +1108,6 @@ extension JNISwift2JavaGenerator {
         }
         return printer.finalize()
 
-      case .null:
-        return "null"
-
       case .print(let inner):
         let inner = inner.render(&printer, placeholder)
         printer.print("\(inner);")

Sources/SwiftJavaRuntimeSupport/DefaultCaches.swift

@@ -1,3 +1,17 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2025 Apple Inc. and the Swift.org project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of Swift.org project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
 import SwiftJava
 
 extension _JNIMethodIDCache {

Sources/SwiftJavaRuntimeSupport/_JNIBoxedConversions.swift

@@ -1,3 +1,17 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2025 Apple Inc. and the Swift.org project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of Swift.org project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
 import CSwiftJavaJNI
 import SwiftJava