Fix leak, add LeakDetect sub-command

src/main/java/com/github/creeper123123321/viarift/ViaRift.java

@@ -24,7 +24,7 @@
 
 package com.github.creeper123123321.viarift;
 
-import com.github.creeper123123321.viarift.platform.VRCommandHandler;
+import com.github.creeper123123321.viarift.commands.VRCommandHandler;
 import com.github.creeper123123321.viarift.platform.VRInjector;
 import com.github.creeper123123321.viarift.platform.VRLoader;
 import com.github.creeper123123321.viarift.platform.VRPlatform;

src/main/java/com/github/creeper123123321/viarift/commands/VRCommandHandler.java

@@ -22,9 +22,17 @@
  * SOFTWARE.
  */
 
-package com.github.creeper123123321.viarift.platform;
+package com.github.creeper123123321.viarift.commands;
 
+import com.github.creeper123123321.viarift.commands.subs.LeakDetectSubCommand;
 import us.myles.ViaVersion.commands.ViaCommandHandler;
 
 public class VRCommandHandler extends ViaCommandHandler {
+    {
+        try {
+            registerSubCommand(new LeakDetectSubCommand());
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
 }

src/main/java/com/github/creeper123123321/viarift/commands/subs/LeakDetectSubCommand.java

@@ -0,0 +1,59 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2018 creeper123123321 and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package com.github.creeper123123321.viarift.commands.subs;
+
+import io.netty.util.ResourceLeakDetector;
+import us.myles.ViaVersion.api.command.ViaCommandSender;
+import us.myles.ViaVersion.api.command.ViaSubCommand;
+
+import java.util.Arrays;
+
+public class LeakDetectSubCommand extends ViaSubCommand {
+    @Override
+    public String name() {
+        return "leakdetect";
+    }
+
+    @Override
+    public String description() {
+        return "Sets ResourceLeakDetector level";
+    }
+
+    @Override
+    public boolean execute(ViaCommandSender viaCommandSender, String[] strings) {
+        if (strings.length == 1) {
+            try {
+                ResourceLeakDetector.Level level = ResourceLeakDetector.Level.valueOf(strings[0]);
+                ResourceLeakDetector.setLevel(level);
+                viaCommandSender.sendMessage("Set leak detector level to " + level);
+            } catch (IllegalArgumentException e) {
+                viaCommandSender.sendMessage("Invalid level (" + Arrays.toString(ResourceLeakDetector.Level.values()) +")");
+            }
+        } else {
+            viaCommandSender.sendMessage("Current leak detection level is " + ResourceLeakDetector.getLevel());
+        }
+        return true;
+    }
+}

src/main/java/com/github/creeper123123321/viarift/handler/VRInHandler.java

@@ -71,7 +71,7 @@ public class VRInHandler extends ByteToMessageDecoder {
                     buf.clear();
                     buf.writeBytes(newPacket);
                 } catch (Exception e) {
-                    buf.clear();
+                    buf.release();
                     throw e;
                 } finally {
                     newPacket.release();

src/main/java/com/github/creeper123123321/viarift/handler/VROutHandler.java

@@ -88,7 +88,7 @@ public class VROutHandler extends MessageToByteEncoder {
                         pre.writeBytes(newPacket);
                     }
                 } catch (Exception e) {
-                    pre.clear();
+                    pre.release();
                     throw e;
                 } finally {
                     newPacket.release();