Use notifyAll instead of notify

[stuartwdouglas]

HTTP/2 could have multiple threads waiting on the connection, so we need to wake up all of them.

In future we could move to a park/unpark based approach but it would need some performance testing.

Fixes #28116

[quarkus-bot]

Failing Jobs - Building eb5083b

Status	Name	Step	Failures	Logs	Raw logs
✖	JVM Tests - JDK 11	Build	Failures	Logs	Raw logs
✔️	JVM Tests - JDK 17
✔️	JVM Tests - JDK 17 MacOS M1
✔️	JVM Tests - JDK 18

Full information is available in the Build summary check run.

Failures

⚙️ JVM Tests - JDK 11 #

- Failing: integration-tests/oidc-code-flow 

📦 integration-tests/oidc-code-flow

✖ io.quarkus.it.keycloak.CodeFlowTest.testTokenAutoRefresh line 509 - More details - Source on GitHub

com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException: 401 Unauthorized for http://localhost:8081/tenant-autorefresh?state=258ab5dc-e736-4f76-aeba-d4791bfa3033&session_state=ad1646dc-a808-4c63-96a1-5ef4d7c5dfc8&code=e7b5cc37-7d3f-4a8c-be9b-ebe7e79409f4.ad1646dc-a808-4c63-96a1-5ef4d7c5dfc8.28a8d6a1-c6b3-4bb8-9632-01a75389c8cf
	at com.gargoylesoftware.htmlunit.WebClient.throwFailingHttpStatusCodeExceptionIfNecessary(WebClient.java:701)
	at com.gargoylesoftware.htmlunit.WebClient.loadDownloadedResponses(WebClient.java:2452)

[geoand]

We should probably ban the use of notify completely :)

[sberyozkin]

The code flow test has been disabled

[gsmet]

Is it something that should be backported?