Can't obtain default attribute value for composite component from attributes map

[mnyakushev]

Describe the bug

In latest versions of mojarra the behavior of composite component attributes map (UIComponent::getAttributes) was changed.

In Payara server 6.2024.9 and above (Mojarra 4.0.7.payara-p1) I couldn't obtain literal default attribute value from attributes map.
In Payara server 6.2024.8 and below (Mojarra 4.0.0.payara-p2) I could do this.

Looks like it's because of this changes (273b9ea)

To Reproduce

1. Download reproducer mojarra-test.zip
2. Build it
3. Deploy to latest Payara Server CE (6.2024.10)
4. Open link https://localhost:8080 (you don't see default attribute value on page)
5. Deploy to Payara Server CE 6.2024.8
6. Open link https://localhost:8080 (you will see default attribute value on page)

Expected behavior

I need clarification is it a bug or it's a feature?
Is the only correct way to get the attribute value now - via an EL expression like #{cc.attrs.attributeName}?

Desktop (please complete the following information):

• OS: Windows 11
• Browser: chrome
• Version: 129.0.6668.100

[BalusC]

It's indeed a bug which was already reported as #5460 and fixed in 4.0.8 which was released at 1 sep 2024.

[mnyakushev]

Thank you