Jakarta runtime v4 complains that jaxb.properties is missing while it tries to load jaxb.index

[dmak]

Dear community,

The attached project demonstrates the following problem:

• When runtime v3 is used, test is run without any issue:

$ mvn -Djaxb-api.version=3.0.0 -Djaxb-core.version=3.0.0 clean install
...
Running inner_element_value_objects.MainTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.264 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

• When runtime v4 is used, the following error occurs:

$ mvn clean install
...
Running inner_element_value_objects.MainTest
Trying to load inner_element_value_objects/jaxb.index
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.185 sec <<< FAILURE!
inner_element_value_objects.MainTest.testContextLoading()  Time elapsed: 0.185 sec  <<< FAILURE!
org.glassfish.jaxb.runtime.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
Package "inner_element_value_objects" is missing jaxb.properties file. Have you copied this from the generated source directory or include it in the classpath?
	this problem is related to the following location:
		at inner_element_value_objects.ObjectFactory

	at org.glassfish.jaxb.runtime.v2.runtime.IllegalAnnotationsException$Builder.check(IllegalAnnotationsException.java:83)
	at org.glassfish.jaxb.runtime.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:421)
	at org.glassfish.jaxb.runtime.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:255)
	at org.glassfish.jaxb.runtime.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1115)
	at org.glassfish.jaxb.runtime.v2.ContextFactory.createContext(ContextFactory.java:144)
	at org.glassfish.jaxb.runtime.v2.ContextFactory.createContext(ContextFactory.java:246)
	at org.glassfish.jaxb.runtime.v2.JAXBContextFactory.createContext(JAXBContextFactory.java:58)
	at jakarta.xml.bind.ContextFinder.find(ContextFinder.java:324)
	at jakarta.xml.bind.JAXBContext.newInstance(JAXBContext.java:392)
	at jakarta.xml.bind.JAXBContext.newInstance(JAXBContext.java:349)
	at inner_element_value_objects.MainTest.testContextLoading(MainTest.java:28)

Note that jaxb.properties is a part of the project.

Two issues here:

• v3 and v4 behave differently.
• v4 tries to load the missing jaxb.index, but complains that jaxb.properties is missing. Actually jaxb.index was not generated by XJC.

[lukasj]

v3 and v4 are not fully compatible - see https://github.com/jakartaee/jaxb-api/releases which lists some breaking changes

to make the test in the project passing:

• update test:

    @Test
    public void testContextLoading() throws JAXBException {
        Map<String, Object> props = new HashMap<>();
        props.put(JAXBContext.JAXB_CONTEXT_FACTORY, inner_element_value_objects.impl.JAXBContextFactory.class.getName());
        assertNotNull(JAXBContext.newInstance("inner_element_value_objects", new JAXBClassLoader(), props)));
    }

• remove the value of the JAXBContext.JAXB_CONTEXT_FACTORY from the options passed to JAXBContext.newInstance methods in custom factory implementation

[dmak]

Thanks for the hint / solution. The release notes you refer read "drops implementation lookup through jaxb.properties file" – that does not fit with the error in the top post above. And JAXBContext could be somehow inferred from the package like it was in v3 – are there any plans to improve that?