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Context propagation between Java threads #4097

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19 changes: 19 additions & 0 deletions content/en/docs/languages/java/instrumentation.md
Original file line number Diff line number Diff line change
Expand Up @@ -973,6 +973,25 @@ OpenTelemetry provides a text-based approach to propagate context to remote
services using the [W3C Trace Context](https://www.w3.org/TR/trace-context/)
HTTP headers.

### Context propagation between threads

THe following example demonstrates how to propagate the context between threads:

```java
io.opentelemetry.context.Context context = io.opentelemetry.context.Context.current();
Thread thread = new Thread(new Runnable() {
@Override
public void run() {
try (Scope scope = context.makeCurrent()) {
// Code for which you want to propagate the context
}
}
});
thread.start();
```

### Context propagation between HTTP requests

The following presents an example of an outgoing HTTP request using
`HttpURLConnection`.

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