[Feature] Support for tracking in spring gateway versions 4.1.2 and above

[yqw570994511]

Currently, there is a problem with the loss of traceId in versions of spring gateway 4.1.2 and above. For more information, see the link: #12636

To solve this problem, I plan to provide the following solutions by adding a new plugin: apm-spring-cloud-gateway-4.1.2.x-plugin. When using spring gateway 4.1.2 and above, use 4.1.2.x-plugin. When using spring gateway4.1.2 and below, use apm-spring-cloud-gateway-4.x-plugin

The effect is as follows:

Use gateway4.1.5，lb to SpringBoot 3.3.4 application

[wu-sheng]

If you need to explain what is the special for 4.1.2, as per your discussion, 4.1.5 works.

We do a patch for a patch release inside a major plugin, rather than totally different jar.

You should use witness class/method in gw 4.x plugin.

[wu-sheng]

Also, as this will be an official plugin, you should check whether this is the only version having the issue. How about 4.1.1 and 4.1.3, etc.

Currently, we only verified 4.1.0, https://github.com/apache/skywalking-java/blob/main/test/plugin/scenarios/gateway-4.x-scenario/support-version.list

[yqw570994511]

This issue has existed since 4.1.2, and it also exists in 4.1.3. Using the current 4.x plugin is fine for 4.1.1 and below I noticed what you said, there is a plan to verify this 4.1.2.x scenario

[wu-sheng]

But you mentioned 4.1.5 is good, you should investigate why it is back to work again.

[yqw570994511]

But you mentioned 4.1.5 is good, you should investigate why it is back to work again.

No, the 4.1.5 I mentioned above works well because it uses a new plug-in scheme that can track properly.If you are using the current 4.x plugin, the gateway 4.1.5 version cannot be tracked normally

[wu-sheng]

OK, that makes sense.
Let's focus on implementing a patch to support these newer versions.