I am trying to learn and evaluate Hibernate Reactive for a project. I used the tutorial at:
I can run the tutorial on my local machine without any problems but when I deploy to Google Cloud, the call to
Persistence.createEntityManagerFactory
gets stuck. Why does this happen and how can I fix this?
complete callstack:
2022-10-03 16:40:38,694 WARN [vertx-blocked-thread-checker] io.vertx.core.impl.BlockedThreadChecker - Thread Thread[vert.x-worker-thread-0,5,main] has been blocked for 60722 ms, time limit is 60000 ms
io.vertx.core.VertxException: Thread blocked
at java.base@17.0.4.1/java.util.zip.ZipFile$Source.getEntryPos(ZipFile.java:1640)
at java.base@17.0.4.1/java.util.zip.ZipFile.getEntry(ZipFile.java:331)
at java.base@17.0.4.1/java.util.jar.JarFile.getEntry(JarFile.java:518)
at java.base@17.0.4.1/java.util.jar.JarFile.getJarEntry(JarFile.java:473)
at java.base@17.0.4.1/jdk.internal.loader.URLClassPath$JarLoader.getResource(URLClassPath.java:954)
at java.base@17.0.4.1/jdk.internal.loader.URLClassPath.getResource(URLClassPath.java:319)
at java.base@17.0.4.1/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:757)
at java.base@17.0.4.1/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681)
at java.base@17.0.4.1/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639)
at java.base@17.0.4.1/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
at java.base@17.0.4.1/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
at app//org.hibernate.annotations.common.reflection.java.JavaReflectionManager.<init>(JavaReflectionManager.java:51)
at app//org.hibernate.boot.internal.BootstrapContextImpl.generateHcannReflectionManager(BootstrapContextImpl.java:311)
at app//org.hibernate.boot.internal.BootstrapContextImpl.<init>(BootstrapContextImpl.java:89)
at app//org.hibernate.boot.internal.MetadataBuilderImpl.<init>(MetadataBuilderImpl.java:124)
at app//org.hibernate.boot.MetadataSources.getMetadataBuilder(MetadataSources.java:158)
at app//org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:250)
at app//org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:182)
at app//org.hibernate.reactive.provider.impl.ReactiveEntityManagerFactoryBuilder.<init>(ReactiveEntityManagerFactoryBuilder.java:34)
at app//org.hibernate.reactive.provider.ReactivePersistenceProvider.getEntityManagerFactoryBuilder(ReactivePersistenceProvider.java:145)
at app//org.hibernate.reactive.provider.ReactivePersistenceProvider.getEntityManagerFactoryBuilderOrNull(ReactivePersistenceProvider.java:95)
at app//org.hibernate.reactive.provider.ReactivePersistenceProvider.createEntityManagerFactory(ReactivePersistenceProvider.java:47)
at app//javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)
at app//io.vertx.howtos.hr.MainVerticle.lambda$asyncStart$0(MainVerticle.java:48)
at app//io.vertx.howtos.hr.MainVerticle$$Lambda$94/0x0000000800d109c0.get(Unknown Source)
at app//io.smallrye.mutiny.operators.uni.builders.UniCreateFromDeferredSupplier.subscribe(UniCreateFromDeferredSupplier.java:25)
at app//io.smallrye.mutiny.operators.AbstractUni.subscribe(AbstractUni.java:36)
at app//io.smallrye.mutiny.groups.UniSubscribe.withSubscriber(UniSubscribe.java:50)
at app//io.smallrye.mutiny.groups.UniSubscribe.with(UniSubscribe.java:90)
at app//io.vertx.mutiny.core.Vertx$3.handle(Vertx.java:666)
at app//io.vertx.mutiny.core.Vertx$3.handle(Vertx.java:664)
at app//io.vertx.core.impl.ContextImpl.lambda$null$0(ContextImpl.java:159)
at app//io.vertx.core.impl.ContextImpl$$Lambda$130/0x0000000800d25a40.handle(Unknown Source)
at app//io.vertx.core.impl.AbstractContext.dispatch(AbstractContext.java:100)
at app//io.vertx.core.impl.ContextImpl.lambda$executeBlocking$1(ContextImpl.java:157)
at app//io.vertx.core.impl.ContextImpl$$Lambda$128/0x0000000800d27378.run(Unknown Source)
at app//io.vertx.core.impl.TaskQueue.run(TaskQueue.java:76)
at app//io.vertx.core.impl.TaskQueue$$Lambda$89/0x0000000800d0eaa0.run(Unknown Source)
at java.base@17.0.4.1/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base@17.0.4.1/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at app//io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base@17.0.4.1/java.lang.Thread.run(Thread.java:833)
2022-10-03 16:40:41,693 WARN [vertx-blocked-thread-checker] io.vertx.core.impl.BlockedThreadChecker - Thread Thread[vert.x-worker-thread-0,5,main] has been blocked for 63322 ms, time limit is 60000 ms
^C
Command killed by keyboard interrupt