Cannot convert buffer types in platform-http

[nicolaferraro]

I'm using the following service in a Camel K integration (My test was with Quarkus 1.x):

      rest().post("/{currency}")
        .route()
        .log("Asking the internal department to BUY ${header.currency}...");

I expected the service to echo the message back (it was working this way), but I get a conversion error:

cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration 2021-06-23 16:45:00,677 ERROR [io.qua.ver.htt.run.QuarkusErrorHandler] (vert.x-eventloop-thread-1) HTTP Request to /BTC failed, error id: a90c1bee-809d-4eac-b71f-cd80ce31c762-1: org.apache.camel.NoTypeConversionAvailableException: No type converter available to convert from type: io.vertx.core.buffer.impl.BufferImpl to the required type: java.nio.ByteBuffer with value {"value":33521.23,"operation":"buy"}
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at org.apache.camel.impl.converter.CoreTypeConverterRegistry.mandatoryConvertTo(CoreTypeConverterRegistry.java:275)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at org.apache.camel.impl.converter.CoreTypeConverterRegistry.mandatoryConvertTo(CoreTypeConverterRegistry.java:207)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at org.apache.camel.component.platform.http.vertx.VertxPlatformHttpSupport.writeResponse(VertxPlatformHttpSupport.java:181)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at org.apache.camel.component.platform.http.vertx.VertxPlatformHttpConsumer.lambda$handleRequest$3(VertxPlatformHttpConsumer.java:198)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at io.vertx.core.impl.ContextImpl.lambda$null$0(ContextImpl.java:327)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at io.vertx.core.impl.ContextImpl.executeTask(ContextImpl.java:366)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at io.vertx.core.impl.EventLoopContext.lambda$executeAsync$0(EventLoopContext.java:38)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
cautious-investor-service-00004-deployment-6bbd6bbdf-zq8rw integration  at java.base/java.lang.Thread.run(Thread.java:829)

[jamesnetherton]

I can reproduce this in CQ 1.8.1 / Camel 3.9.0, but not with CQ 2.x / Camel 3.10.

I'll add a test to verify.

[jamesnetherton]

Actually I'm wrong - I can reproduce with CQ 2.x.

[jamesnetherton]

I proposed a workaround in #2846 for CQ 2.0.0. I opened a Camel ticket to fix properly in later releases.

https://issues.apache.org/jira/browse/CAMEL-16756