Netty: don't expose tracing handler in handlers map #10410
Merged
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Resolves #10377
Handlers map is used to build handlers iterator. In https://github.com/eclipse-vertx/vert.x/blob/244b91045bb166625b2645bfdc95ede825c133a3/src/main/java/io/vertx/core/http/impl/Http1xUpgradeToH2CHandler.java#L139 vert.x iterates over handlers and removes them. As we remove our handler together with the traced handler calling
pipeline.remove()
for our handler fails because it was already removed.