From e7061804930b61960ef66c97bb08ed7e647e4abf Mon Sep 17 00:00:00 2001
From: CaiHQ <caihq@pku.edu.cn>
Date: Mon, 8 Nov 2021 13:56:00 +0800
Subject: [PATCH] fix: plugin null bugs

---
 .../java/org/bdware/server/CMHttpServer.java  | 27 +++++++++++--------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/src/main/java/org/bdware/server/CMHttpServer.java b/src/main/java/org/bdware/server/CMHttpServer.java
index c707ed9..345f26c 100644
--- a/src/main/java/org/bdware/server/CMHttpServer.java
+++ b/src/main/java/org/bdware/server/CMHttpServer.java
@@ -45,7 +45,7 @@ import java.util.concurrent.atomic.AtomicInteger;
 public class CMHttpServer {
     private static final Logger LOGGER = LogManager.getLogger(CMHttpServer.class);
     private static final String CONFIG_PATH = "cmconfig.json";
-    public static  CMDConf cmdConf;
+    public static CMDConf cmdConf;
     public static EventLoopGroup workerGroup = new NioEventLoopGroup();
     public static MultiIndexTimeRocksDBUtil nodeLogDB =
             new MultiIndexTimeRocksDBUtil(
@@ -53,6 +53,7 @@ public class CMHttpServer {
     private static SslContext sslContext = null;
     final String PATH = "/SCIDE/SCExecutor";
     private final int port;
+
     private static void parseConf(CMDConf cmdConf) throws IOException {
         if (cmdConf.disableDoRepo) {
             DoConfig.callContractUsingDOI = false;
@@ -215,10 +216,10 @@ public class CMHttpServer {
             }
         }
 
-        start(cmdConf.ip, cmdConf.servicePort, cmdConf.doipPort,cmdConf);
+        start(cmdConf.ip, cmdConf.servicePort, cmdConf.doipPort, cmdConf);
     }
 
-    public static void start(String ip, int port, int doipPort,CMDConf cmdConf) throws IOException {
+    public static void start(String ip, int port, int doipPort, CMDConf cmdConf) throws IOException {
         if (DoConfig.callContractUsingDOI) {
             ContractManager.threadPool.execute(
                     () -> ContractRepositoryMain.start("tcp://" + ip + ":" + doipPort));
@@ -244,16 +245,20 @@ public class CMHttpServer {
                 return pathname.getName().endsWith(".jar");
             }
         });
-        URL[] urls = new URL[pluginJar.length];
-        for (int i=0;i<pluginJar.length;i++){
-            try {
-                urls[i] = pluginJar[i].toURI().toURL();
-                LOGGER.info("add plugin:"+pluginJar[i].getName());
-            } catch (MalformedURLException e) {
-                e.printStackTrace();
+        if (pluginJar != null && pluginJar.length > 0) {
+            URL[] urls = new URL[pluginJar.length];
+            for (int i = 0; i < pluginJar.length; i++) {
+                try {
+                    urls[i] = pluginJar[i].toURI().toURL();
+                    LOGGER.info("add plugin:" + pluginJar[i].getName());
+                } catch (MalformedURLException e) {
+                    e.printStackTrace();
+                }
             }
+            pluginLoader = new URLClassLoader(urls, CMHttpServer.class.getClassLoader());
+        } else {
+            pluginLoader = new URLClassLoader(new URL[]{}, CMHttpServer.class.getClassLoader());
         }
-         pluginLoader = new URLClassLoader(urls,CMHttpServer.class.getClassLoader());
         if (port >= 18000 && port < 18100) {
             ContractManager.cPort = new ContractPort(1615 + (port - 18000) * 30);
         } else {