Investigate Broken <pre-compile-jsps value="true"/> Behaivor

[volosied]

Describe the bug
<pre-compile-jsps value="true"/> when set via the WEB-INF/ibm-web-ext.xml file, does not precompile the JSPs.

Steps to Reproduce
See description above. An example file:

<?xml version="1.0" encoding="UTF-8"?>
<web-ext xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://websphere.ibm.com/xml/ns/javaee"
    xsi:schemaLocation="http://websphere.ibm.com/xml/ns/javaee http://websphere.ibm.com/xml/ns/javaee/ibm-web-ext_1_0.xsd" version="1.0">
   <jsp-attribute name="keepgenerated" value="true"/>
   <pre-compile-jsps value="true"/>
</web-ext>

Expected behavior
The JSPs should be precompiled.

Diagnostic information:

• OpenLiberty Version: ALL
• Affected feature(s) jsp-2.3, pages-3.0, pages-3.1, pages-4.0
• Java Version: N/A
• server.xml configuration (WITHOUT sensitive information like passwords)
• If it would be useful, upload the messages.log file found in $WLP_OUTPUT_DIR/messages.log

Additional context
As a workaround - Use prepareJSPs=0: https://openliberty.io/docs/latest/reference/config/jspEngine.html