Progress error reporting on start fail

README.md

@@ -17,15 +17,17 @@ A working modern computer in Minecraft made using VirtualBox and Java. No client
 
 * OS X; Ubuntu 16.04/18.04
 * VirtualBox 6.0
-* Spgiot/Bukkit 1.8/1.9/1.12
+* Spgiot/Bukkit 1.12
 * Java 8
 
+*The fast rendering method currently only supports 1.12.2.*
+
 ### Tested on:
 *The requirements vary greatly depending on what OS you want to run ingame but here are my specs that can run Overwatch in Minecraft.*
 
-* CPU: Intel 3.5 GHz
+* CPU: Intel® Pentium(R) CPU G3460 @ 3.50GHz × 2
 * RAM: 8 GB
-* GPU: NVidia GeForce GTX 650
+* GPU: NVidia GeForce GTX 650 1 GB
 
 *Due to VirtualBox Java binding support limitations the plugin does not support Windows currently.*
 
@@ -74,7 +76,7 @@ Due to the way it works, it automatically plays every sound from the virtual mac
 
 ### Special thanks:
 * The creators of VirtualBox for making it open-source and kind of easy to use (though I had minor issues as the documentation doesn't really tell me how to write a new frontend :P and that I needed to learn how machines work - especially keyboards)
-* @iiegit for testing and more testing for the non-Windows version
+* @iiegit for testing and more testing for the non-Windows version and helping a lot to get it on /r/sequence
 
 # Known issues
 ## Port remains open (cannot bind to port)

VirtualComputer/lombok.config

@@ -0,0 +1 @@
+lombok.var.flagUsage = ALLOW

VirtualComputer/src/main/java/sznp/virtualcomputer/Computer.java

@@ -79,6 +79,7 @@ public final class Computer {
 	    handler = new MachineEventHandler(Computer.this, sender);
         listener = handler.registerTo(console.getEventSource());
         IProgress progress = console.powerUp(); // https://marc.info/?l=vbox-dev&m=142780789819967&w=2
+	    handler.setProgress(progress);
 	    handler.registerTo(progress.getEventSource()); //TODO: Show progress bar some way?
         console.getDisplay().attachFramebuffer(0L,
                 new IFramebuffer(new MCFrameBuffer(console.getDisplay(), true)));
@@ -199,6 +200,8 @@ public final class Computer {
         Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
             if (session.getState() == SessionState.Locked) {
                 session.unlockMachine(); //Needs to be outside of the event handler
+	            handler = null;
+	            machine = null;
             }
         });
         GPURendererInternal.setPixels(new byte[1], 0, 0); //Black screen

VirtualComputer/src/main/java/sznp/virtualcomputer/events/MachineEventHandler.java

@@ -1,21 +1,29 @@
 package sznp.virtualcomputer.events;
 
 import com.google.common.collect.ImmutableMap;
+import lombok.Setter;
+import lombok.experimental.var;
+import org.bukkit.Bukkit;
 import org.bukkit.command.CommandSender;
 import org.bukkit.event.EventHandler;
-import org.virtualbox_6_0.IProgressTaskCompletedEvent;
+import org.virtualbox_6_0.IProgress;
 import org.virtualbox_6_0.IStateChangedEvent;
 import org.virtualbox_6_0.VBoxEventType;
 import sznp.virtualcomputer.Computer;
+import sznp.virtualcomputer.PluginMain;
+
+import java.util.logging.Logger;
 
 public class MachineEventHandler extends EventHandlerBase {
 	private final Computer computer;
 	private final CommandSender sender;
 	private boolean starting = false;
+	@Setter
+	private IProgress progress;
 
 	public MachineEventHandler(Computer computer, CommandSender sender) {
-		super(ImmutableMap.of(VBoxEventType.OnStateChanged, IStateChangedEvent.class,
+		super(ImmutableMap.of(VBoxEventType.OnStateChanged, IStateChangedEvent.class));
-				VBoxEventType.OnProgressTaskCompleted, IProgressTaskCompletedEvent.class));
+		//VBoxEventType.OnProgressPercentageChanged, IProgressPercentageChangedEvent.class)); - Doesn't fire at all, the complete event only fires on success
 		this.computer = computer;
 		this.sender = sender;
 	}
@@ -32,6 +40,18 @@ public class MachineEventHandler extends EventHandlerBase {
 					sender.sendMessage("§cFailed to start computer! See the VM's log for more details.");
 					sender.sendMessage("§cMake sure that 2D and 3D acceleration is disabled.");
 					starting = false;
+					Bukkit.getScheduler().runTaskAsynchronously(PluginMain.Instance, () -> {
+						progress.waitForCompletion(-1);
+						if (progress != null && progress.getCompleted() && progress.getResultCode() != 0) {
+							Logger l = PluginMain.Instance.getLogger();
+							l.warning("Result code: " + Integer.toHexString(progress.getResultCode()));
+							for (var info = progress.getErrorInfo(); info != null; info = info.getNext()) {
+								l.warning("----------------");
+								l.warning("VBox: " + info.getText());
+								l.warning("Component: " + info.getComponent());
+							}
+						}
+					});
 				}
 				computer.onMachineStop(sender);
 				break;