title: How i can define chatset for serialization in Quarkus?
body: <p>I'm trying send to other system through RESTCLIENT data that is in the ISO-8859-1 encode but i'm have a error: "com.fasterxml.jackson.databind.JsonMappingException: Invalid UTF-8 middle byte 0xe3".</p>
  
  <p>I would like change the serialization encode to ISO-8859-1 instead UTF-8, is possible?</p>
  
  <p>If i convert to UTF-8 before send, it work, but i dont want this option bacause the database is ISO-8859-1.</p>
  
  <p>I tried set -Dfile.encoding=ISO-8859-1 in JVM, the value is changed but the error persist.</p>
  
  <pre><code>javax.ws.rs.ProcessingException: com.fasterxml.jackson.databind.JsonMappingException: Invalid UTF-8 middle byte 0xe3
  at [Source: (org.jboss.resteasy.specimpl.AbstractBuiltResponse$InputStreamWrapper); line: 1, column: 480] (through reference chain: com.xxxxxxx.xxx.model.scheduler.Scheduler["nmSchedule"])
  at org.jboss.resteasy.client.jaxrs.internal.ClientResponse.readFrom(ClientResponse.java:251)
  at org.jboss.resteasy.specimpl.BuiltResponse.readEntity(BuiltResponse.java:88)
  at org.jboss.resteasy.specimpl.AbstractBuiltResponse.readEntity(AbstractBuiltResponse.java:256)
  at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.extractResult(ClientInvocation.java:163)
  at org.jboss.resteasy.client.jaxrs.internal.proxy.extractors.BodyEntityExtractor.extractEntity(BodyEntityExtractor.java:62)
  at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.invokeSync(ClientInvoker.java:151)
  at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientInvoker.invoke(ClientInvoker.java:112)
  at org.jboss.resteasy.client.jaxrs.internal.proxy.ClientProxy.invoke(ClientProxy.java:76)
  at com.sun.proxy.$Proxy124.findByIdSchedule(Unknown Source)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.base/java.lang.reflect.Method.invoke(Method.java:566)
  at org.jboss.resteasy.microprofile.client.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:149)
  at com.sun.proxy.$Proxy125.findByIdSchedule(Unknown Source)
  at com.xxxxxxx.xxx.services.materialization.MaterializationSchedulerService.saveScheduler(MaterializationSchedulerService.java:28)
  </code></pre>