Vertx client doesn't deal correctly with a byte array set to null

[wjglerum]

Questions

After updating our application to Quarkus 3.16.4 see https://github.com/quarkusio/quarkus/releases/tag/3.16.4 we noticed that we got a test failure for the case when we try to persist a Hibernate entity that has a byte array field set to null. This used to work before upgrading to Quarkus 3.16.4 which also upgrades Vert.x to 4.5.11

We get the following exception:

java.lang.NullPointerException: Cannot invoke "Object.getClass()" because "value" is null
	at io.vertx.sqlclient.impl.ErrorMessageFactory.buildWhenArgumentsTypeNotMatched(ErrorMessageFactory.java:23)
	at io.vertx.pgclient.impl.codec.PgParamDesc.prepare(PgParamDesc.java:57)
	at io.vertx.pgclient.impl.codec.PgPreparedStatement.prepare(PgPreparedStatement.java:57)
	at io.vertx.sqlclient.impl.command.ExtendedQueryCommand.prepare(ExtendedQueryCommand.java:122)
	at io.vertx.sqlclient.impl.SocketConnectionBase.lambda$prepareCommand$4(SocketConnectionBase.java:295)
	at io.vertx.sqlclient.impl.command.CommandResponse.fire(CommandResponse.java:46)
	at io.vertx.sqlclient.impl.SocketConnectionBase.handleMessage(SocketConnectionBase.java:324)
	at io.vertx.pgclient.impl.PgSocketConnection.handleMessage(PgSocketConnection.java:114)
	at io.vertx.sqlclient.impl.SocketConnectionBase.lambda$init$0(SocketConnectionBase.java:137)
	at io.vertx.core.impl.ContextImpl.emit(ContextImpl.java:342)
	at io.vertx.core.impl.ContextImpl.emit(ContextImpl.java:335)
	at io.vertx.core.net.impl.NetSocketImpl.handleMessage(NetSocketImpl.java:389)
	at io.vertx.core.net.impl.ConnectionBase.read(ConnectionBase.java:159)
	at io.vertx.core.net.impl.VertxHandler.channelRead(VertxHandler.java:153)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
	at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436)
	at io.vertx.pgclient.impl.codec.PgDecoder.fireCommandResponse(PgDecoder.java:52)
	at io.vertx.pgclient.impl.codec.PgCommandCodec.handleReadyForQuery(PgCommandCodec.java:133)
	at io.vertx.pgclient.impl.codec.PrepareStatementCommandCodec.handleReadyForQuery(PrepareStatementCommandCodec.java:96)
	at io.vertx.pgclient.impl.codec.PgDecoder.decodeReadyForQuery(PgDecoder.java:248)
	at io.vertx.pgclient.impl.codec.PgDecoder.channelRead(PgDecoder.java:107)
	at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1357)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:868)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:1583)

Which can be resolved to setting the entity field to an empty byte array instead of null. Then it is able to persist the entity.

Version

Vert.x 4.5.11

Context

Quarkus app with Hibernate Reactive and Reactive PostgreSQL Client

Do you have a reproducer?

no yet

But can be reproduced by creating a Hibernate entity with a field like this:

    @Lob
    @Column(name = "data")
    public byte[] data;

And set the field to null, then it doesn't work. If you set it to an empty byte array it will work again.

Extra

Looks like this was introduced by this PR here #1464

[ProgMaq]

Same error trace, but using io.vertx.pgclient.data.Point.

I changed Tuple.addValue(point) to Tuple.addValue(point != null ? point : NullValue.of(Point.class)) but the error still appears.

[tsegismont]

Thank you for the report @wjglerum and for the additional details @ProgMaq

Can you please share the definition of the database table that you have used in these cases ? Thank you