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via Google Groups by Yves Peckstadt, 1 year ago
io.vertx.core.VertxException: Thread blocked	at java.lang.Object.hashCode(Native Method)	at java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1012)	at java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1006)	at io.vertx.core.impl.ConcurrentHashSet.add(ConcurrentHashSet.java:74)	at io.vertx.core.impl.ContextImpl.addCloseHook(ContextImpl.java:116)