Portlets using Tag files cannot be re-deployed

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 DXP SP2, Master
• Fix Version/s: 7.0.0 DXP SP2, 7.0.0 DXP FP13, 7.0.0 DXP SP3, 7.0.3 CE GA4, 7.1.X, Master
• Component/s: Core Infrastructure > Servlet JSP Compiler, Portal Services, Portal Services > Component Management, Portal Services > Component Management > Portlet Taglib
• Labels:
  • liferay-digital-enterprise-70-sp3
  • liferay-fixpack-de-13-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/47168

preston.crary and I modified Liferay's Hello-World Portlet to contain a view.jsp that depends on a tag. With this simple set up, we demonstrated that portlets with tag dependencies cannot be re-deployed due to JSP Compilation issues. I'm including the .jar file below. The specific changes we made to the Hello-World portlet can be found on my branch .

Steps To Reproduce:
1. Deploy the *com.liferay.hello.world.web.jar by copying into the deploy folder
2. Add the portlet to a Liferay page. You should see "This is an example" in the portlet, showing that the tag has been picked up in the view
3. Re-deploy the portlet (or refresh in Telnet)
4. Go to the page. The Hello World portlet should be broken. JSP compilation errors will be in the terminal

Expected Results:
Portlets with tags display on page without errors on redeployment

Actual Results:
Portlets cannot be re-deployed without deleting it's corresponding work folder