Possible NPE In Undertow Instrumentation

[pepeshore]

Describe the bug

In io.opentelemetry.javaagent.bootstrap.undertow.UndertowActiveHandlers,the return value of context.get(CONTEXT_KEY) may be null, It will cause normal HTTP requests to fail

Steps to reproduce

It occurs very rarely—only once or twice per tens of millions of requests per day—and cannot be reliably reproduced.

Expected behavior

Don't affect normal HTTP requests handling

Actual behavior

Resulting in normal HTTP requests to fail

Javaagent or library instrumentation version

2.23.0

Environment

JDK: 1.8
OS: ubuntu 20

Additional context

No response

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[laurit]

Do you have a stacktrace? Which one of the methods fails, increment or decrementAndGet?