修复空指针问题

hippo4j-spring-boot/hippo4j-core-spring-boot-starter/src/main/java/cn/hippo4j/core/starter/config/ExecutorProperties.java

@@ -1,9 +1,12 @@
 package cn.hippo4j.core.starter.config;
 
 import cn.hippo4j.common.notify.ThreadPoolNotifyAlarm;
+import com.google.common.collect.Maps;
 import lombok.Data;
 import lombok.experimental.Accessors;
 
+import java.util.Map;
+
 /**
  * Executor properties.
  *
@@ -69,4 +72,9 @@ public class ExecutorProperties {
      */
     private ThreadPoolNotifyAlarm notify;
 
+
+    public Map<String, String> receives() {
+        return this.notify.getReceives() == null ? Maps.newHashMap() : this.notify.getReceives();
+    }
+
 }

hippo4j-spring-boot/hippo4j-core-spring-boot-starter/src/main/java/cn/hippo4j/core/starter/notify/CoreNotifyConfigBuilder.java

@@ -61,7 +61,7 @@ public class CoreNotifyConfigBuilder implements NotifyConfigBuilder {
             notifyConfig.setType("ALARM");
             notifyConfig.setSecretKey(platformProperties.getSecretKey());
             notifyConfig.setInterval(executor.getNotify().getInterval());
-            Map<String, String> receives = executor.getNotify().getReceives();
+            Map<String, String> receives = executor.receives();
             String receive = receives.get(platformProperties.getPlatform());
             if (StrUtil.isBlank(receive)) {
                 receive = platformProperties.getReceives();
@@ -82,7 +82,7 @@ public class CoreNotifyConfigBuilder implements NotifyConfigBuilder {
             notifyConfig.setType("CONFIG");
             notifyConfig.setSecretKey(platformProperties.getSecretKey());
 
-            Map<String, String> receives = executor.getNotify().getReceives();
+            Map<String, String> receives = executor.receives();
             String receive = receives.get(platformProperties.getPlatform());
             if (StrUtil.isBlank(receive)) {
                 receive = platformProperties.getReceives();