优化代码，性能暴涨

src/org/kne/cloud/network/minecraft/MinecraftServerPinger.java

@@ -3,8 +3,11 @@ package org.kne.cloud.network.minecraft;
 import java.awt.image.BufferedImage;
 import java.io.ByteArrayInputStream;
 import java.io.EOFException;
+import java.io.Externalizable;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
 import java.io.OutputStream;
 import java.io.Serializable;
 import java.io.StringReader;
@@ -37,7 +40,7 @@ public class MinecraftServerPinger implements Serializable{
 
 	private long latency=-1;
 	private String json;
-	private BufferedImage icon;
+	//private BufferedImage icon;
 	private int max;
 	private int online;
 	private String description;
@@ -47,6 +50,8 @@ public class MinecraftServerPinger implements Serializable{
 	private String klalbversion;
 	private Inet6Address klalbvaddr;
 	private int klalbvport;
+	private String icon;
+	private transient BufferedImage image;
 	
 	public MinecraftServerPinger(MultipurposeSocketAddress target) throws UnknownHostException, IOException {
 		this(target,target.connectSocket());
@@ -146,12 +151,8 @@ public class MinecraftServerPinger implements Serializable{
 	if(favicon!=null) {
 		String s=favicon.getAsString();
 		if(s.startsWith("data:image/png;base64,")){
-			s=s.replace("\n", "");
-			try {
-				icon=ImageIO.read(new ByteArrayInputStream(Base64.getDecoder().decode(s.substring("data:image/png;base64,".length()))));
-			} catch (IOException e) {
-				e.printStackTrace();
-			}
+			icon=s.replace("\n", "");
+			
 		}
 	}
 		/*try {
@@ -261,7 +262,15 @@ public class MinecraftServerPinger implements Serializable{
 	}
 
 	public BufferedImage getIcon() {
-		return icon;
+		if(icon==null)
+			return null;
+		if(image==null)
+		try {
+			image= ImageIO.read(new ByteArrayInputStream(Base64.getDecoder().decode(icon.substring("data:image/png;base64,".length()))));
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		return image;
 	}
 
 	public int getMax() {
@@ -305,4 +314,6 @@ public class MinecraftServerPinger implements Serializable{
 		MinecraftServerPinger sp=new MinecraftServerPinger(MinecraftServerAddress.findAddress("mc.hypixel.cn"));
 		System.out.println(sp);
 	}
+
+
 }