From 1731f0b0cb485a1502fda79f824db8a032484364 Mon Sep 17 00:00:00 2001
From: yushijinhun <yushijinhun@gmail.com>
Date: Tue, 13 Feb 2018 01:19:16 +0800
Subject: [PATCH] fixes

---
 .../org/to2mbn/authlibinjector/AuthlibInjector.java    | 10 +++++++++-
 .../tweaker/AuthlibInjectorTweaker.java                |  6 +-----
 .../tweaker/TweakerTransformerAdapter.java             |  6 +++++-
 3 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/src/main/java/org/to2mbn/authlibinjector/AuthlibInjector.java b/src/main/java/org/to2mbn/authlibinjector/AuthlibInjector.java
index 168ab4c..9cc1200 100644
--- a/src/main/java/org/to2mbn/authlibinjector/AuthlibInjector.java
+++ b/src/main/java/org/to2mbn/authlibinjector/AuthlibInjector.java
@@ -22,15 +22,23 @@ public final class AuthlibInjector {
 	private static final String[] nonTransformablePackages = new String[] { "java.", "javax.", "com.sun.",
 			"com.oracle.", "jdk.", "sun.", "org.apache.", "com.google.", "oracle.", "com.oracle.", "com.paulscode.",
 			"io.netty.", "org.lwjgl.", "net.java.", "org.w3c.", "javassist.", "org.xml.", "org.jcp.", "paulscode.",
-			"com.ibm.", "joptsimple." };
+			"com.ibm.", "joptsimple.", "org.to2mbn.authlibinjector." };
 
 	private AuthlibInjector() {}
 
+	private static boolean booted = false;
+
 	public static void log(String message, Object... args) {
 		System.err.println("[authlib-injector] " + MessageFormat.format(message, args));
 	}
 
 	public static void bootstrap(Consumer<ClassFileTransformer> transformerRegistry) {
+		if (booted) {
+			log("already booted, skipping");
+			return;
+		}
+		booted = true;
+
 		Optional<InjectorConfig> optionalConfig = configure();
 		if (!optionalConfig.isPresent()) {
 			log("no config is found, exiting");
diff --git a/src/main/java/org/to2mbn/authlibinjector/tweaker/AuthlibInjectorTweaker.java b/src/main/java/org/to2mbn/authlibinjector/tweaker/AuthlibInjectorTweaker.java
index a42abca..cd129cf 100644
--- a/src/main/java/org/to2mbn/authlibinjector/tweaker/AuthlibInjectorTweaker.java
+++ b/src/main/java/org/to2mbn/authlibinjector/tweaker/AuthlibInjectorTweaker.java
@@ -3,16 +3,12 @@ package org.to2mbn.authlibinjector.tweaker;
 import static org.to2mbn.authlibinjector.AuthlibInjector.bootstrap;
 import static org.to2mbn.authlibinjector.AuthlibInjector.log;
 import java.io.File;
-import java.lang.instrument.ClassFileTransformer;
-import java.util.ArrayList;
 import java.util.List;
 import net.minecraft.launchwrapper.ITweaker;
 import net.minecraft.launchwrapper.LaunchClassLoader;
 
 public class AuthlibInjectorTweaker implements ITweaker {
 
-	static List<ClassFileTransformer> transformers = new ArrayList<>();
-
 	@Override
 	public void acceptOptions(List<String> args, File gameDir, File assetsDir, String profile) {}
 
@@ -22,7 +18,7 @@ public class AuthlibInjectorTweaker implements ITweaker {
 		Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
 		try {
 			log("launched from tweaker");
-			bootstrap(transformers::add);
+			bootstrap(TweakerTransformerAdapter.transformers::add);
 			launchClassLoader.registerTransformer(TweakerTransformerAdapter.class.getName());
 		} finally {
 			Thread.currentThread().setContextClassLoader(originalCtxCl);
diff --git a/src/main/java/org/to2mbn/authlibinjector/tweaker/TweakerTransformerAdapter.java b/src/main/java/org/to2mbn/authlibinjector/tweaker/TweakerTransformerAdapter.java
index 4755aa9..6d989a9 100644
--- a/src/main/java/org/to2mbn/authlibinjector/tweaker/TweakerTransformerAdapter.java
+++ b/src/main/java/org/to2mbn/authlibinjector/tweaker/TweakerTransformerAdapter.java
@@ -3,15 +3,19 @@ package org.to2mbn.authlibinjector.tweaker;
 import static org.to2mbn.authlibinjector.AuthlibInjector.log;
 import java.lang.instrument.ClassFileTransformer;
 import java.lang.instrument.IllegalClassFormatException;
+import java.util.ArrayList;
+import java.util.List;
 import net.minecraft.launchwrapper.IClassTransformer;
 import net.minecraft.launchwrapper.Launch;
 
 public class TweakerTransformerAdapter implements IClassTransformer {
 
+	public static List<ClassFileTransformer> transformers = new ArrayList<>();
+
 	@Override
 	public byte[] transform(String name, String transformedName, byte[] classBuffer) {
 		String internalClassName = name.replace('.', '/');
-		for (ClassFileTransformer transformer : AuthlibInjectorTweaker.transformers) {
+		for (ClassFileTransformer transformer : transformers) {
 			byte[] result = null;
 			try {
 				result = transformer.transform(Launch.classLoader, internalClassName, null, null, classBuffer);