Quarkus xml Parser DocumentBuilderFactory cannot be found, but only when using quarkus-run.jar

Question

When packaging our app with mvn package everything works fine. Then when we start our app with java -jar target\quarkus-app\quarkus-run.jar the app silently crashes. While debugging we found that it crashes while parsing an xml InputStream. It happens while initialising some classes. This is the stacktrace that we had to dig out ourselves:

Exception occurred in target VM: Provider for javax.xml.parsers.DocumentBuilderFactory cannot be found
javax.xml.parsers.FactoryConfigurationError: Provider for javax.xml.parsers.DocumentBuilderFactory cannot be found
    at javax.xml.parsers.DocumentBuilderFactory.newInstance(Unknown Source)
    at org.optaplanner.core.impl.io.jaxb.GenericJaxbIO.parseXml(GenericJaxbIO.java:209)
    at org.optaplanner.core.impl.io.jaxb.SolverConfigIO.read(SolverConfigIO.java:15)
    at org.optaplanner.core.config.solver.SolverConfig.createFromXmlReader(SolverConfig.java:199)
    at org.optaplanner.core.config.solver.SolverConfig.createFromXmlInputStream(SolverConfig.java:173)
    at org.optaplanner.core.config.solver.SolverConfig.createFromXmlInputStream(SolverConfig.java:160)

When packaging the app in an uberjar this problem does not occur. Same when using dev. We use graalvm-ce-java17-22.2.0, together with the 2.11.2.Final version of quarkus and the 8.29.0.Final version of optaplanner.

We tried to verify that there aren't any xml exclusion in the dependencies. Also we checked if quarkus and the quarkus maven-compiler-plugin are of the same version. Also we looked into the compiled jarfiles, if the xml we want to read is present. If it wouldn't be present, the code would crash even earlier. The class javax.xml.parsers.DocumentBuilderFactory is not listed in the quarkus-app-dependencies.txt

Answer 1

Adding the quarkus-optaplanner extension helped to identify the logger issue. So the problem with the silent crash is resolved. Adding quarkus-jaxp to the dependencies gets rid of the FactoryConfigurationError and everything works as expected.