fix:修复pickAddress

Author: chuntaojun

polaris-sync-commons/src/main/java/cn/polarismesh/polaris/sync/common/rest/RestOperator.java

@@ -20,6 +20,7 @@
 import java.time.Duration;
 import java.util.List;
 import java.util.Random;
+import java.util.concurrent.ThreadLocalRandom;
 import org.springframework.boot.web.client.RestTemplateBuilder;
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpMethod;
@@ -46,8 +47,7 @@ public static String pickAddress(List<String> addresses) {
         if (addresses.size() == 1) {
             return addresses.get(0);
         }
-        Random random = new Random();
-        int i = random.nextInt(addresses.size());
+        int i = ThreadLocalRandom.current().nextInt(addresses.size());
         if (i >= addresses.size()) {
             i = 0;
         }

polaris-sync-registry-core/src/main/java/cn/polarismesh/polaris/sync/registry/tasks/PullTask.java

@@ -26,6 +26,7 @@
 import cn.polarismesh.polaris.sync.registry.utils.ConfigUtils;
 import com.tencent.polaris.client.pb.ResponseProto.DiscoverResponse;
 import com.tencent.polaris.client.pb.ServiceProto.Instance;
+import java.io.ByteArrayInputStream;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
@@ -86,6 +87,7 @@ public void run() {
                 }
             }
         } catch (Throwable e) {
+            ByteArrayInputStream in = new ByteArrayInputStream()
             e.printStackTrace();
             LOG.error("[Core] pull task(source {}) encounter exception {}", source.getName(), e);
         }