CAMEL-23646: Fix inverted BackgroundTask return values in sjms, pgevent and master

[Croway]

Summary

The BackOff → BackgroundTask migration (CAMEL-22206) preserved callback return values verbatim, but the two APIs have opposite boolean semantics: BackOff returns false to stop, BackgroundTask returns true to stop. This caused infinite retry loops after successful recovery in three components.

camel-sjms/sjms2 — after a transient JMS connection interruption (reported with Oracle AQ), the consumer enters an infinite recovery loop. Each iteration destroys the working connection via refreshConnection() while initConsumers() skips re-creation (consumers != null), leaving consumers attached to closed sessions. Message consumption is permanently blocked.

camel-pgevent — after successful PostgreSQL reconnection, the task keeps calling initConnection() every reconnectDelay, leaking connections and duplicating notification listeners.

camel-master — after the delegated consumer starts, the task keeps calling ServiceHelper.startService() until budget exhaustion (default 10 iterations). Can revive a consumer after leadership loss.

Claude Code on behalf of Federico Mariani

[github-actions]

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[davsclaus]

50/50 % chance ;)

[github-actions]

🧪 CI tested the following changed modules:

• components/camel-master
• components/camel-pgevent
• components/camel-sjms

All tested modules (20 modules)

• Camel :: AI :: LangChain4j :: Embedding
• Camel :: AI :: LangChain4j :: EmbeddingStore
• Camel :: Consul
• Camel :: Infinispan :: Embedded
• Camel :: Infinispan :: Remote
• Camel :: JBang :: MCP
• Camel :: JBang :: Plugin :: Route Parser
• Camel :: JBang :: Plugin :: TUI
• Camel :: JBang :: Plugin :: Validate
• Camel :: JGroups
• Camel :: JGroups Raft
• Camel :: Launcher :: Container
• Camel :: MLLP
• Camel :: Master
• Camel :: PgEvent
• Camel :: Simple JMS
• Camel :: Simple JMS2
• Camel :: YAML DSL :: Validator
• Camel :: YAML DSL :: Validator Maven Plugin
• Camel :: Zookeeper

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