Build: Remove all code from tools-jar-api leaving only declarations

Since method bodies are not required for compilation
strip them out to remove noise between different versions.

dependencies/tools-jar-api/build.gradle.kts

@@ -1,3 +1,11 @@
+import org.jetbrains.kotlin.gradle.internal.ensureParentDirsCreated
+import org.jetbrains.org.objectweb.asm.ClassReader
+import org.jetbrains.org.objectweb.asm.ClassReader.SKIP_CODE
+import org.jetbrains.org.objectweb.asm.ClassVisitor
+import org.jetbrains.org.objectweb.asm.ClassWriter
+import org.jetbrains.org.objectweb.asm.Opcodes.*
+import java.util.zip.ZipFile
+
 plugins {
     base
 }
@@ -7,25 +15,48 @@ val toolsJarFile = toolsJarFile(jdkHome = File(JDK_18)) ?: error("Couldn't find
 
 // tools.jar from JDK has different public api on different platforms which makes impossible to reuse caches
 // for tasks which depend on it. Since we can't compile against those classes & stay cross-platform anyway,
-// we may just exclude them from compile classpath. This should make tools.jar compatible at least within
+// we may just exclude them from compile classpath. Since method bodies are not required for compilation
-// one build of JDK for different platforms
+// strip them out to remove noise between different versions.
+
+val toolsJarStubs by tasks.registering {
+    inputs.file(toolsJarFile)
+
+    val outDir = buildDir.resolve(name)
+    outputs.dir(outDir)
+
+    doLast {
+        val zipFile = ZipFile(toolsJarFile)
+        zipFile.stream()
+            .filter { it.name.endsWith(".class") }
+            .forEach { zipEntry ->
+                zipFile.getInputStream(zipEntry).use { entryStream ->
+                    val classReader = ClassReader(entryStream)
+                    val classWriter = ClassWriter( 0)
+                    classReader.accept(object : ClassVisitor(API_VERSION, classWriter) {
+
+                    }, SKIP_CODE)
+                    val result = File(outDir, zipEntry.name)
+                    result.ensureParentDirsCreated()
+                    result.writeBytes(classWriter.toByteArray())
+                }
+            }
+    }
+}
 
 val jar = tasks.register<Jar>("jar") {
+    dependsOn(toolsJarStubs)
     from {
-        zipTree(toolsJarFile).matching {
+        fileTree(toolsJarStubs.get().outputs.files.singleFile).matching {
             exclude("META-INF/**")
 
             exclude("sun/tools/attach/LinuxAttachProvider.class")
-            exclude("sun/tools/attach/LinuxVirtualMachine${'$'}SocketInputStream.class")
+            exclude("sun/tools/attach/LinuxVirtualMachine*")
-            exclude("sun/tools/attach/LinuxVirtualMachine.class")
 
             exclude("sun/tools/attach/BsdAttachProvider.class")
-            exclude("sun/tools/attach/BsdVirtualMachine${'$'}SocketInputStream.class")
+            exclude("sun/tools/attach/BsdVirtualMachine*")
-            exclude("sun/tools/attach/BsdVirtualMachine.class")
 
             exclude("sun/tools/attach/WindowsAttachProvider.class")
-            exclude("sun/tools/attach/WindowsVirtualMachine${'$'}SocketInputStream.class")
+            exclude("sun/tools/attach/WindowsVirtualMachine*")
-            exclude("sun/tools/attach/WindowsVirtualMachine.class")
 
             // Windows only classes
             exclude("com/sun/tools/jdi/SharedMemoryAttachingConnector$1.class")
@@ -37,6 +68,9 @@ val jar = tasks.register<Jar>("jar") {
             exclude("com/sun/tools/jdi/SharedMemoryTransportService.class")
             exclude("com/sun/tools/jdi/SharedMemoryTransportServiceCapabilities.class")
             exclude("com/sun/tools/jdi/SunSDK.class")
+
+            // Deprecated class which has differences in api between versions
+            exclude("com/sun/tools/javadoc/JavaScriptScanner.class")
         }
     }
 }