Update pom.xml file to use the Jakarta EE 9 provided dependency.
For example:

Before

<dependency>
<groupId>jakarta.platform</groupId>
<artifactId>jakarta.jakartaee-api</artifactId>
<version>8.0.0</version>
<scope>provided</scope>
</dependency>

or

<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>8.0</version>
<scope>provided</scope>
</dependency>

After

<dependency>
<groupId>jakarta.platform</groupId>
<artifactId>jakarta.jakartaee-api</artifactId>
<version>9.0.0</version>
<scope>provided</scope>
</dependency>

References
The migration rules developed to support EAP 7.3 contains a rules to replace javax dependencies with the jakarta equivalents.
Those rules use a targetTechnology id of jakarta-ee and versionRange [8]

Jakarta platform profile maven (superset of web profile)
Jakarta web profile maven

Javax platform profile
Javax web profile maven

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