migrate to jakarta namespace

[Copilot]

• Audit current Java EE and Jooby usage in the repository and review the baseline Maven commands
• Replace upstream Jooby dependencies with the Kill Bill fork and centralize the commons and Jakarta version overrides in the root POM
• Migrate repository-local servlet-facing imports and integration code from javax.servlet to jakarta.servlet where required
• Run Maven package, test, and verify with JDK 21
• Record current validation blocker: mvn test and mvn verify fail in the sandbox because embedded MySQL cannot start without libaio.so.1
• Create or update the PR titled migrate to jakarta namespace

[xsalefter]

@copilot

1. To fix the current problem, changes spotbugs-exclude.xml to code below:

<!--
  ~ Copyright 2020-2021 Equinix, Inc
  ~ Copyright 2014-2021 The Billing Project, LLC
  ~
  ~ The Billing Project licenses this file to you under the Apache License, version 2.0
  ~ (the "License"); you may not use this file except in compliance with the
  ~ License.  You may obtain a copy of the License at:
  ~
  ~    http://www.apache.org/licenses/LICENSE-2.0
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  ~ WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
  ~ License for the specific language governing permissions and limitations
  ~ under the License.
  -->

<FindBugsFilter>
    <Bug pattern="EI_EXPOSE_REP"/>
    <Bug pattern="EI_EXPOSE_REP2"/>
    <!-- Constructor validates and normalizes input URLs, and the checked exception is part of the public API. -->
    <Match>
        <Bug pattern="CT_CONSTRUCTOR_THROW"/>
        <Class name="org.killbill.billing.plugin.api.payment.PluginHostedPaymentPageFormDescriptor"/>
    </Match>
    <!-- Constructor performs DB metadata and schema resolution eagerly, and SQL failures are part of the public API. -->
    <Match>
        <Bug pattern="CT_CONSTRUCTOR_THROW"/>
        <Class name="org.killbill.billing.plugin.dao.PluginDao"/>
    </Match>
    <!-- Constructor builds SSL/HTTP client state eagerly, and security setup failures are part of the public API. -->
    <Match>
        <Bug pattern="CT_CONSTRUCTOR_THROW"/>
        <Class name="org.killbill.billing.plugin.util.http.HttpClient"/>
    </Match>
</FindBugsFilter>

2. Additionally, remove this maven deps as it is not used anymore:

  <groupId>com.github.spotbugs</groupId>
  <artifactId>spotbugs-annotations</artifactId>

[Copilot]

@copilot

1. To fix the current problem, changes spotbugs-exclude.xml to code below:...

Addressed in 46c0d56. I updated spotbugs-exclude.xml with the requested constructor filters, removed the direct spotbugs-annotations dependency, removed the remaining direct SpotBugs suppression usage, and fixed SslUtils so JAVA_HOME=/usr/lib/jvm/temurin-21-jdk-amd64 mvn -B -ntp -DskipTests verify now passes.