[CURATOR-574] DiscoveryService fatal error on deserializing an empty byte[] as JSON

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 5.0.0
• Fix Version/s: 5.1.0
• Component/s: Recipes
• Assignee: Enrico Olivelli
• Reporter: Enrico Olivelli
• Created: 15/Jun/20 14:29
• Updated: 23/Jun/20 13:59
• Resolved: 23/Jun/20 11:30

Description

Below you can see the error in 5.0.0 tests, but I have seen this error on a client application. The error seems a blocker for the upgrade to 5.0.0

ERROR org.apache.curator.framework.listen.MappingListenerManager  Listener (org.apache.curator.framework.recipes.cache.CuratorCacheListenerBuilderImpl$2@329dbdbf) threw an exception [Curator-SafeNotifyService-0]
java.lang.RuntimeException: java.lang.RuntimeException: com.fasterxml.jackson.databind.exc.MismatchedInputException: No content to map due to end-of-input
 at [Source: (byte[])""; line: 1, column: 0]
	at org.apache.curator.framework.recipes.cache.PathChildrenCacheListenerWrapper.sendEvent(PathChildrenCacheListenerWrapper.java:75)
	at org.apache.curator.framework.recipes.cache.PathChildrenCacheListenerWrapper.event(PathChildrenCacheListenerWrapper.java:42)
	at org.apache.curator.framework.recipes.cache.CuratorCacheListenerBuilderImpl$2.lambda$event$0(CuratorCacheListenerBuilderImpl.java:149)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1510)
	at org.apache.curator.framework.recipes.cache.CuratorCacheListenerBuilderImpl$2.event(CuratorCacheListenerBuilderImpl.java:149)
	at org.apache.curator.framework.recipes.cache.CuratorCacheImpl.lambda$putStorage$7(CuratorCacheImpl.java:279)
	at org.apache.curator.framework.listen.MappingListenerManager.lambda$forEach$0(MappingListenerManager.java:92)
	at org.apache.curator.framework.listen.MappingListenerManager.forEach(MappingListenerManager.java:89)
	at org.apache.curator.framework.listen.StandardListenerManager.forEach(StandardListenerManager.java:89)
	at org.apache.curator.framework.recipes.cache.CuratorCacheImpl.lambda$callListeners$10(CuratorCacheImpl.java:293)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1800)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
	at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.lang.RuntimeException: com.fasterxml.jackson.databind.exc.MismatchedInputException: No content to map due to end-of-input
 at [Source: (byte[])""; line: 1, column: 0]
	at org.apache.curator.x.discovery.details.ServiceCacheImpl.addInstance(ServiceCacheImpl.java:209)
	at org.apache.curator.x.discovery.details.ServiceCacheImpl.childEvent(ServiceCacheImpl.java:175)
	at org.apache.curator.framework.recipes.cache.PathChildrenCacheListenerWrapper.sendEvent(PathChildrenCacheListenerWrapper.java:71)
	... 13 more
Caused by: com.fasterxml.jackson.databind.exc.MismatchedInputException: No content to map due to end-of-input
 at [Source: (byte[])""; line: 1, column: 0]
	at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:59)
	at com.fasterxml.jackson.databind.ObjectMapper._initForReading(ObjectMapper.java:4344)
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4189)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3300)
	at org.apache.curator.x.discovery.details.JsonInstanceSerializer.deserialize(JsonInstanceSerializer.java:86)
	at org.apache.curator.x.discovery.details.ServiceCacheImpl.addInstance(ServiceCacheImpl.java:204)
	... 15 more