* Fix bugs for attaching.

Author: MrRogerHuang

adapter/src/main/kotlin/org/javacs/ktda/adapter/KotlinDebugAdapter.kt

@@ -182,18 +182,19 @@ class KotlinDebugAdapter(
 	}
 
 	override fun attach(args: Map<String, Any>) = async.execute {
-		performInitialization()
+		// Fix a deadlock problem by commenting the following line.
+		//performInitialization()
 
 		val projectRoot = (args["projectRoot"] as? String)?.let { Paths.get(it) }
 			?: throw missingRequestArgument("launch", "projectRoot")
 
 		val hostName = (args["hostName"] as? String)
 			?: throw missingRequestArgument("attach", "hostName")
 
-		val port = (args["port"] as? Int)
+		val port = (args["port"] as? Double)?.toInt()
 			?: throw missingRequestArgument("attach", "port")
 
-		val timeout = (args["timeout"] as? Int)
+		val timeout = (args["timeout"] as? Double)?.toInt()
 			?: throw missingRequestArgument("attach", "timeout")
 
 		setupCommonInitializationParams(args)

adapter/src/main/kotlin/org/javacs/ktda/jdi/launch/JDILauncher.kt

@@ -70,7 +70,7 @@ class JDILauncher(
 		}
 
 	private fun createAttachConnector(): AttachingConnector = vmManager.attachingConnectors()
-		.firstOrNull()
+		.first { it.name().equals("com.sun.jdi.SocketAttach") }
 		?: throw KotlinDAException("Could not find an attaching connector (for a new debuggee VM)")
 
 	private fun createLaunchConnector(): LaunchingConnector = vmManager.launchingConnectors()