The official JAXB API dependency can be found in the Maven Central repository, so if you’re using Maven, you’ll want to add the following dependency to your project:
The proper solution is to add the JAXB as a dependency to your project – in the same was as you would have done long ago, before Java 6. This solution is not recommended however, because it will not work on JDK 11 or newer, where the module .ee has been removed completely.Ī better solution is to not use the .ee module at all, and add JAXB to your project as a separate library, as described below.
You can do the same thing when you run the program, for example: $ java -cp target/classes -add-modules .ee One way to make your JAXB program compile on JDK 9 or 10 is to explicitly enable the deprecated module .ee on the command line using the –add-modules option, for example: $ javac -s src/main/java -d target/classes -add-modules .ee `find src/main/java -name '*.java'` Not recommended: Enabling the deprecated module
Of course, you want to know what exactly you need to do to use JAXB in Java SE 9 and newer. To use JAX-WS and JAXB you need to add them to your project as separate libraries. In Java SE 11, the module .ee has been removed.You need to explicitly enable it if you want to use it. In Java SE 9 and 10, the module .ee, which contains JAX-WS, JAXB and a few other Java EE APIs, is still included but is deprecated, and not included in the module path by default.Therefore, a proposal was made in JEP-320 to remove the Java EE and CORBA modules from the JDK. With today’s trend towards microservices, it’s important that the Java runtime environment is small and lightweight, so having a large runtime library with built-in support for every possible technology isn’t as advantageous anymore. Among these were JAX-WS (Java API for XML-Based Web Services) and JAXB. It was decided to add the necessary APIs, that were originally developed as part of Java EE, to Java SE. When Java SE 6 was released in December 2006, XML-based web services were popular, so the developers of the Java language thought it would be a good idea if Java would have support for calling web services as a standard feature. One of these was support for XML-based web services. In the course of the past 20+ years, many features have been added to it, mostly because at the time it was thought that it would be a good idea if Java supported a particular technology out-of-the-box. Java’s standard library isn’t exactly small and lightweight. When you try to use these tools with JDK 11 or newer, you’ll get a “command not found” or similar error. The JAXB-specific xjc and schemagen tools, which you use to convert an XML Schema ( *.xsd file) to a set of Java classes and vice versa, are included with the JDK up to version 10, but have been removed in JDK 11. Location: class Example Using the xjb and schemagen tools on JDK 11 JAXBContext context = JAXBContext.newInstance(PurchaseOrder.class) Src/main/java/com/jesperdj/jaxb/Example.java:23: error: cannot find symbol When you compile a program that uses JAXB on JDK 11 or newer, you’ll get errors indicating that the package and the classes in it do not exist at all: src/main/java/com/jesperdj/jaxb/Example.java:9: error: package does not exist (package is declared in module, which is not in the module graph) Compiling a JAXB program on JDK 11 or newer When you compile a program that uses JAXB using JDK 9 or 10, you’ll get errors indicating that the package is not visible: src/main/java/com/jesperdj/jaxb/Example.java:9: error: package is not visible When you run a program that was compiled with JDK 8 or older on Java SE 9 or newer, you’ll get a NoClassDefFoundError that tells you that classes in the package cannot be found, for example: Error: Unable to initialize main class Ĭaused by: : javax/xml/bind/JAXBException Compiling a JAXB program on JDK 9 or 10 Running a JAXB program on Java SE 9 or newer Let’s first take a look at the errors that you’ll get when you try to run or compile a program that uses JAXB on the newer Java versions. In this post we will take a look at what has changed and what you need to do to use JAXB on Java 9 and beyond. There are changes in Java SE 9, 10 and 11 that you need to know about to understand and solve these errors. If you have programs that use JAXB (Java Architecture for XML Binding) and you’ve tried to compile and run them on Java versions newer than Java 8, you’ll have noticed that you get errors.
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