Split off swift-java-jni-core

Benchmarks/Package.swift

@@ -1,91 +1,7 @@
 // swift-tools-version: 6.0
 
-import Foundation
 import PackageDescription
 
-// Note: the JAVA_HOME environment variable must be set to point to where
-// Java is installed, e.g.,
-//   Library/Java/JavaVirtualMachines/openjdk-21.jdk/Contents/Home.
-func findJavaHome() -> String {
-  if let home = ProcessInfo.processInfo.environment["JAVA_HOME"] {
-    return home
-  }
-
-  // This is a workaround for envs (some IDEs) which have trouble with
-  // picking up env variables during the build process
-  let path = "\(FileManager.default.homeDirectoryForCurrentUser.path()).java_home"
-  if let home = try? String(contentsOfFile: path, encoding: .utf8) {
-    if let lastChar = home.last, lastChar.isNewline {
-      return String(home.dropLast())
-    }
-
-    return home
-  }
-
-  if let home = getJavaHomeFromSDKMAN() {
-    return home
-  }
-
-  if let home = getJavaHomeFromPath() {
-    return home
-  }
-
-  fatalError("Please set the JAVA_HOME environment variable to point to where Java is installed.")
-}
-
-func getJavaHomeFromSDKMAN() -> String? {
-  let home = FileManager.default.homeDirectoryForCurrentUser
-    .appendingPathComponent(".sdkman/candidates/java/current")
-
-  let javaBin = home.appendingPathComponent("bin/java").path
-  if FileManager.default.isExecutableFile(atPath: javaBin) {
-    return home.path
-  }
-  return nil
-}
-
-func getJavaHomeFromPath() -> String? {
-  let task = Process()
-  task.executableURL = URL(fileURLWithPath: "/usr/bin/which")
-  task.arguments = ["java"]
-
-  let pipe = Pipe()
-  task.standardOutput = pipe
-
-  do {
-    try task.run()
-    task.waitUntilExit()
-    guard task.terminationStatus == 0 else { return nil }
-
-    let data = pipe.fileHandleForReading.readDataToEndOfFile()
-    guard
-      let javaPath = String(data: data, encoding: .utf8)?
-        .trimmingCharacters(in: .whitespacesAndNewlines),
-      !javaPath.isEmpty
-    else { return nil }
-
-    let resolved = URL(fileURLWithPath: javaPath).resolvingSymlinksInPath()
-    return
-      resolved
-      .deletingLastPathComponent()
-      .deletingLastPathComponent()
-      .path
-  } catch {
-    return nil
-  }
-}
-let javaHome = findJavaHome()
-
-let javaIncludePath = "\(javaHome)/include"
-#if os(Linux)
-let javaPlatformIncludePath = "\(javaIncludePath)/linux"
-#elseif os(macOS)
-let javaPlatformIncludePath = "\(javaIncludePath)/darwin"
-#else
-// TODO: Handle windows as well
-#error("Currently only macOS and Linux platforms are supported, this may change in the future.")
-#endif
-
 let package = Package(
   name: "benchmarks",
   platforms: [
@@ -99,15 +15,13 @@ let package = Package(
     .executableTarget(
       name: "JavaApiCallBenchmarks",
       dependencies: [
-        .product(name: "CSwiftJavaJNI", package: "swift-java"),
         .product(name: "SwiftJava", package: "swift-java"),
         .product(name: "JavaNet", package: "swift-java"),
         .product(name: "Benchmark", package: "package-benchmark"),
       ],
       path: "Benchmarks/JavaApiCallBenchmarks",
       swiftSettings: [
-        .unsafeFlags(["-I\(javaIncludePath)", "-I\(javaPlatformIncludePath)"]),
-        .swiftLanguageMode(.v5),
+        .swiftLanguageMode(.v5)
       ],
       plugins: [
         .plugin(name: "BenchmarkPlugin", package: "package-benchmark")