First pass

Author: jrosen081

Sources/Java2SwiftLib/JavaTranslator.swift

@@ -194,6 +194,15 @@ extension JavaTranslator {
     let fullName = javaClass.getCanonicalName()
     let swiftTypeName = try! getSwiftTypeNameFromJavaClassName(fullName)
 
+    for internalClass in javaClass.getClasses() {
+      if let internalClass {
+        print("Translating name \(internalClass.getName())")
+        let internalJavaClassName = internalClass.getName()
+        let translatedInternalSwiftName = internalJavaClassName.replacing("$", with: ".")
+        translatedClasses[translatedInternalSwiftName] = ("\(swiftTypeName).\(internalClass.getSimpleName())", nil, true)
+      }
+    }
+
     // Superclass.
     let extends: String
     if !javaClass.isInterface(),
@@ -239,6 +248,18 @@ extension JavaTranslator {
     // Members
     var members: [DeclSyntax] = []
 
+    members.append(
+      contentsOf: javaClass.getClasses().compactMap {
+        $0.flatMap { clazz in
+          let text = translateClass(clazz)
+          text.map { t in t.formatted().description  }
+            .forEach { t in print(t) }
+          print()
+          return text
+        }
+      }.flatMap(\.self)
+    )
+
     // Fields
     var staticFields: [Field] = []
     var enumConstants: [Field] = []

Sources/JavaKitReflection/JavaClass+Reflection.swift

@@ -37,4 +37,10 @@ extension JavaClass {
 
   @JavaMethod
   public func getGenericInterfaces() -> [Type?]
+
+  @JavaMethod
+  public func isInterface() -> Bool
+
+  @JavaMethod
+  public func getClasses() -> [JavaClass<JavaObject>?]
 }

Tests/Java2SwiftTests/Java2SwiftTests.swift

@@ -24,9 +24,9 @@ var jvm: JavaVirtualMachine {
 }
 
 @JavaClass("java.time.Month")
-public struct JavaMonth {
-
-}
+public struct JavaMonth {}
+@JavaClass("java.lang.ProcessBuilder")
+struct ProcessBuilder {}
 
 class Java2SwiftTests: XCTestCase {
   func testJavaLangObjectMapping() throws {
@@ -114,6 +114,18 @@ class Java2SwiftTests: XCTestCase {
       ]
     )
   }
+
+  func testNestedSubclasses() async throws {
+    try assertTranslatedClass(
+      ProcessBuilder.self,
+      swiftTypeName: "ProcessBuilder",
+      expectedChunks: [
+        "import JavaKit",
+        ""
+      ]
+    )
+  }
+
 }
 
 @JavaClass("java.util.ArrayList")
@@ -145,6 +157,7 @@ func assertTranslatedClass<JavaClassType: AnyJavaObject>(
   translator.translatedClasses = translatedClasses
   translator.translatedClasses[javaType.fullJavaClassName] = (swiftTypeName, nil, true)
 
+
   translator.startNewFile()
   let translatedDecls = translator.translateClass(
     try JavaClass<JavaObject>(
@@ -160,6 +173,7 @@ func assertTranslatedClass<JavaClassType: AnyJavaObject>(
     """
 
   for expectedChunk in expectedChunks {
+    print(swiftFileText)
     if swiftFileText.contains(expectedChunk) {
       continue
     }