fix NullPointerException

fix "NullPointerException throw by maybeReadTimeOut() that can cause Eureka cluster registration inconsistency" Netflix#1497
niu-dali · Apr 21, 2023 · 7e7b9a2 · 7e7b9a2
1 parent efc1cf6
commit 7e7b9a2
Showing 1 changed file with 7 additions and 5 deletions.
diff --git a/eureka-core/src/main/java/com/netflix/eureka/cluster/ReplicationTaskProcessor.java b/eureka-core/src/main/java/com/netflix/eureka/cluster/ReplicationTaskProcessor.java
@@ -193,11 +193,13 @@ private static boolean isNetworkConnectException(Throwable e) {
     private static boolean maybeReadTimeOut(Throwable e) {
         do {
             if (IOException.class.isInstance(e)) {
-            	String message = e.getMessage().toLowerCase();
-            	Matcher matcher = READ_TIME_OUT_PATTERN.matcher(message);
-            	if(matcher.find()) {
-            		return true;
-            	}
+            	String message = e.getMessage();
+                if (message != null) {
+                    Matcher matcher = READ_TIME_OUT_PATTERN.matcher(message.toLowerCase());
+                    if(matcher.find()) {
+                        return true;
+                    }
+                }
             }
             e = e.getCause();
         } while (e != null);