Native compilation of the `hibernate-reactive-mssql`, `hibernate-reactive-mysql`, `hibernate-reactive-mysql-agroal`, and `reactive-mysql-client` ITs fails when assertions are enabled on AArch64

[zakkak]

Describe the bug

Enabling assertions at native-image build time results in compilation failure for the hibernate-reactive-mssql, hibernate-reactive-mysql, hibernate-reactive-mysql-agroal, and reactive-mysql-client integration test.

Expected behavior

Test should build and pass

Actual behavior

Test fails at runtime with:

2025-10-07 10:46:29,764 WARN  [io.qua.hib.orm.run.ser.QuarkusRuntimeInitDialectFactory] (JPA Startup Thread) Persistence unit <default>: Could not retrieve the database version to check it is at least 13.0: java.util.concurrent.CompletionException: java.lang.AssertionError
	at java.base@25-beta/java.util.concurrent.CompletableFuture.wrapInCompletionException(CompletableFuture.java:323)
	at java.base@25-beta/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:376)
	at java.base@25-beta/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:391)
	at java.base@25-beta/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1162)
	at java.base@25-beta/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:531)
	at java.base@25-beta/java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2221)
	at org.hibernate.reactive.pool.impl.SqlClientPool.lambda$completionStage$2(SqlClientPool.java:176)
	at io.vertx.core.impl.future.FutureImpl$4.onFailure(FutureImpl.java:188)
	at io.vertx.core.impl.future.FutureBase.emitFailure(FutureBase.java:81)
	at io.vertx.core.impl.future.FutureImpl.tryFail(FutureImpl.java:278)
	at io.vertx.core.impl.future.Mapping.onFailure(Mapping.java:45)
	at io.vertx.core.impl.future.FutureBase.emitFailure(FutureBase.java:81)
	at io.vertx.core.impl.future.FutureImpl.tryFail(FutureImpl.java:278)
	at io.vertx.core.impl.future.Mapping.onFailure(Mapping.java:45)
	at io.vertx.core.impl.future.FutureBase.lambda$emitFailure$1(FutureBase.java:75)
	at io.vertx.core.impl.ContextImpl.execute(ContextImpl.java:312)
	at io.vertx.core.impl.ContextImpl.execute(ContextImpl.java:302)
	at io.vertx.core.impl.future.FutureBase.emitFailure(FutureBase.java:72)
	at io.vertx.core.impl.future.FutureImpl.tryFail(FutureImpl.java:278)
	at io.vertx.core.impl.future.PromiseImpl.onFailure(PromiseImpl.java:54)
	at io.vertx.core.impl.future.PromiseImpl.handle(PromiseImpl.java:43)
	at io.vertx.core.impl.future.PromiseImpl.handle(PromiseImpl.java:23)
	at io.vertx.sqlclient.impl.pool.SqlConnectionPool$1PoolRequest.handle(SqlConnectionPool.java:265)
	at io.vertx.sqlclient.impl.pool.SqlConnectionPool$1PoolRequest.handle(SqlConnectionPool.java:235)
	at io.vertx.core.impl.ContextImpl.emit(ContextImpl.java:342)
	at io.vertx.core.impl.ContextImpl.emit(ContextImpl.java:335)
	at io.vertx.core.net.impl.pool.SimpleConnectionPool$ConnectFailed$1.run(SimpleConnectionPool.java:380)
	at io.vertx.core.net.impl.pool.Task.runNextTasks(Task.java:43)
	at io.vertx.core.net.impl.pool.CombinerExecutor.submit(CombinerExecutor.java:91)
	at io.vertx.core.net.impl.pool.SimpleConnectionPool.execute(SimpleConnectionPool.java:244)
	at io.vertx.core.net.impl.pool.SimpleConnectionPool.lambda$connect$2(SimpleConnectionPool.java:258)
	at io.vertx.sqlclient.impl.pool.SqlConnectionPool$2.lambda$connect$0(SqlConnectionPool.java:136)
	at io.vertx.core.impl.future.FutureImpl$4.onFailure(FutureImpl.java:188)
	at io.vertx.core.impl.future.FutureBase.emitFailure(FutureBase.java:81)
	at io.vertx.core.impl.future.FutureImpl.tryFail(FutureImpl.java:278)
	at io.vertx.core.impl.future.Composition$1.onFailure(Composition.java:66)
	at io.vertx.core.impl.future.FutureBase.emitFailure(FutureBase.java:81)
	at io.vertx.core.impl.future.FutureImpl.tryFail(FutureImpl.java:278)
	at io.vertx.core.impl.future.PromiseImpl.onFailure(PromiseImpl.java:54)
	at io.vertx.core.impl.future.FutureBase.emitFailure(FutureBase.java:81)
	at io.vertx.core.impl.future.FutureImpl.tryFail(FutureImpl.java:278)
	at io.vertx.core.impl.future.Mapping.onFailure(Mapping.java:45)
	at io.vertx.core.impl.future.FutureBase.emitFailure(FutureBase.java:81)
	at io.vertx.core.impl.future.FutureImpl.tryFail(FutureImpl.java:278)
	at io.vertx.core.Promise.fail(Promise.java:89)
	at io.vertx.sqlclient.impl.ConnectionFactoryBase.lambda$doConnectWithRetry$2(ConnectionFactoryBase.java:113)
	at io.vertx.core.impl.future.FutureImpl$4.onFailure(FutureImpl.java:188)
	at io.vertx.core.impl.future.FutureBase.emitFailure(FutureBase.java:81)
	at io.vertx.core.impl.future.FutureImpl.tryFail(FutureImpl.java:278)
	at io.vertx.core.impl.future.Composition$1.onFailure(Composition.java:66)
	at io.vertx.core.impl.future.FutureBase.emitFailure(FutureBase.java:81)
	at io.vertx.core.impl.future.FailedFuture.addListener(FailedFuture.java:98)
	at io.vertx.core.impl.future.Composition.onFailure(Composition.java:55)
	at io.vertx.core.impl.future.FutureBase.emitFailure(FutureBase.java:81)
	at io.vertx.core.impl.future.FutureImpl.tryFail(FutureImpl.java:278)
	at io.vertx.core.impl.future.Composition$1.onFailure(Composition.java:66)
	at io.vertx.core.impl.future.FutureBase.emitFailure(FutureBase.java:81)
	at io.vertx.core.impl.future.FutureImpl.addListener(FutureImpl.java:226)
	at io.vertx.core.impl.future.Composition.onSuccess(Composition.java:43)
	at io.vertx.core.impl.future.FutureBase.emitSuccess(FutureBase.java:66)
	at io.vertx.core.impl.future.FutureImpl.tryComplete(FutureImpl.java:259)
	at io.vertx.core.impl.future.Mapping.onSuccess(Mapping.java:40)
	at io.vertx.core.impl.future.FutureBase.emitSuccess(FutureBase.java:66)
	at io.vertx.core.impl.future.FutureImpl.tryComplete(FutureImpl.java:259)
	at io.vertx.core.Promise.complete(Promise.java:66)
	at io.vertx.core.net.impl.NetClientImpl.lambda$connected$9(NetClientImpl.java:342)
	at io.vertx.core.net.impl.VertxHandler.setConnection(VertxHandler.java:82)
	at io.vertx.core.net.impl.VertxHandler.handlerAdded(VertxHandler.java:88)
	at io.netty.channel.AbstractChannelHandlerContext.callHandlerAdded(AbstractChannelHandlerContext.java:1130)
	at io.netty.channel.DefaultChannelPipeline.callHandlerAdded0(DefaultChannelPipeline.java:558)
	at io.netty.channel.DefaultChannelPipeline.internalAdd(DefaultChannelPipeline.java:203)
	at io.netty.channel.DefaultChannelPipeline.addLast(DefaultChannelPipeline.java:227)
	at io.netty.channel.DefaultChannelPipeline.addLast(DefaultChannelPipeline.java:222)
	at io.vertx.core.net.impl.NetClientImpl.connected(NetClientImpl.java:344)
	at io.vertx.core.net.impl.NetClientImpl.lambda$connectInternal2$3(NetClientImpl.java:306)
	at io.vertx.core.impl.ContextInternal.dispatch(ContextInternal.java:270)
	at io.vertx.core.net.impl.ChannelProvider.connected(ChannelProvider.java:181)
	at io.vertx.core.net.impl.ChannelProvider.lambda$handleConnect$0(ChannelProvider.java:164)
	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:603)
	at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:596)
	at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:572)
	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:505)
	at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:649)
	at io.netty.util.concurrent.DefaultPromise.setSuccess0(DefaultPromise.java:638)
	at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:118)
	at io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:84)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:305)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:340)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:784)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:732)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:658)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:998)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base@25-beta/java.lang.Thread.runWith(Thread.java:1487)
	at java.base@25-beta/java.lang.Thread.run(Thread.java:1474)
	at org.graalvm.nativeimage.builder/com.oracle.svm.core.thread.PlatformThreads.threadStartRoutine(PlatformThreads.java:832)
	at org.graalvm.nativeimage.builder/com.oracle.svm.core.thread.PlatformThreads.threadStartRoutine(PlatformThreads.java:808)
Caused by: java.lang.AssertionError
	at io.netty.buffer.UnsafeByteBufUtil.setZero(UnsafeByteBufUtil.java:665)
	at io.netty.buffer.PooledUnsafeDirectByteBuf.writeZero(PooledUnsafeDirectByteBuf.java:269)
	at io.vertx.mssqlclient.impl.codec.PreLoginCommandCodec.encodeOption(PreLoginCommandCodec.java:56)
	at io.vertx.mssqlclient.impl.codec.PreLoginCommandCodec.encode(PreLoginCommandCodec.java:38)
	at io.vertx.mssqlclient.impl.codec.TdsMessageEncoder.write(TdsMessageEncoder.java:56)
	at io.vertx.mssqlclient.impl.codec.TdsMessageEncoder.write(TdsMessageEncoder.java:47)
	at io.netty.channel.CombinedChannelDuplexHandler.write(CombinedChannelDuplexHandler.java:346)
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:891)
	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:875)
	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:984)
	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:868)
	at io.vertx.sqlclient.impl.SocketConnectionBase.checkPending(SocketConnectionBase.java:275)
	at io.vertx.sqlclient.impl.SocketConnectionBase.doSchedule(SocketConnectionBase.java:226)
	at io.vertx.mssqlclient.impl.MSSQLSocketConnection.doSchedule(MSSQLSocketConnection.java:152)
	at io.vertx.sqlclient.impl.SocketConnectionBase.lambda$schedule$3(SocketConnectionBase.java:204)
	at io.vertx.core.impl.ContextImpl.emit(ContextImpl.java:342)
	at io.vertx.core.impl.ContextImpl.emit(ContextImpl.java:335)
	at io.vertx.core.impl.ContextInternal.emit(ContextInternal.java:200)
	at io.vertx.sqlclient.impl.SocketConnectionBase.schedule(SocketConnectionBase.java:204)
	at io.vertx.mssqlclient.impl.MSSQLSocketConnection.sendPreLoginMessage(MSSQLSocketConnection.java:72)
	at io.vertx.mssqlclient.impl.MSSQLConnectionFactory.lambda$connectOrRedirect$2(MSSQLConnectionFactory.java:55)
	at io.vertx.core.impl.future.Composition.onSuccess(Composition.java:38)
	... 40 more

How to Reproduce?

./mvnw -pl integration-tests/hibernate-reactive-mssql \
  -Dstart-containers -Dtest-containers -Dnative -Dnative.surefire.skip \
  -Dformat.skip -Dno-descriptor-tests \
  clean verify \
  -Dquarkus.native.additional-build-args-append=-ea,-esa,-J-ea,-J-esa

Output of uname -a or ver

No response

Output of java -version

25-beta+36-ea

Mandrel or GraalVM version (if different from Java)

Mandrel-25.0.1.0-dev9688c68b

Quarkus version or git rev

95f89bc

Build tool (ie. output of mvnw --version or gradlew --version)

No response

Additional information

No response

[quarkus-bot]

/cc @DavideD (hibernate-reactive), @Karm (native-image), @barreiro (agroal), @galderz (native-image), @gavinking (hibernate-reactive)

[jerboaa]

Since the assertion comes from netty. /cc @franz1981

[franz1981]

I see it's my code too 😂

https://github.com/netty/netty/blob/63ffb7ea861d96879ade0c13eb85e6a170d92ffb/buffer/src/main/java/io/netty/buffer/UnsafeByteBufUtil.java#L665

Probably the assertion is wrong if the length is less than what's required to align the address to 8.
And regardless I have used %8 which is costly (since the JVM cannot prove addr to be positive and optimize the modulus to become a shift)

I will send a patch on Netty for these 🙏

[franz1981]

I had the chance to look better into it @jerboaa and Is a bit concerning, let me clarify...

1. the assert there was very wrong really
2. but the fact you enter into the UNALIGNED = false branch is concerning

The latter, is because it means that the CPU/OS doesn't allow unaligned accesses, which AFAIK happens in Raspberry PI (by default) and very few other architectures: so, how you get there? which CPU are you using?

i.e. My suspect is that initialization on native image is going very wrong there!

See https://github.com/netty/netty/blob/netty-4.1.127.Final/common/src/main/java/io/netty/util/internal/PlatformDependent0.java#L320 or https://github.com/netty/netty/blob/netty-4.1.127.Final/common/src/main/java/io/netty/util/internal/PlatformDependent0.java#L386-L460 on how we ended up there...
i.e. if we gave up on Unsafe probably we don't know either if we support (or not) Unaligned accesses