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cxfwsdl2javajava-12

How to run Apache CXF wadl2java with JDK 12?

The following command used to work flawlessly:

C:\tools\apache-cxf-3.3.1\bin\wsdl2java -client -d generated foo.wsdl

It no longer works with the latest version of JDK - 12. I have downloaded the latest version of Apache CXF, and still get the same error:

-Djava.endorsed.dirs=C:\tools\apache-cxf-3.3.1\bin\..\lib\endorsed is not supported. Endorsed standards and standalone APIs
in modular form will be supported via the concept of upgradeable modules.
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

Could anyone offer a tip on how to remedy this?

Solution

  • I got the Apache CXF 3.3.1 wsdl2java utility to work with the latest OpenJDK 11 by doing 4 things:

    1. Pull down this jar and place it into the {CXF_HOME}/lib directory: https://mvnrepository.com/artifact/javax.jws/jsr181-api/1.0-MR1
    2. Pull down this jar and also place it in the {CXF_HOME}/lib directory: https://mvnrepository.com/artifact/javax.xml.ws/jaxws-api/2.3.1

    3. In my case, since I'm running on a Mac, I vi'd the wsdl2java script and made sure these two jars are explicitly being set on the CXF classpath, by doing the following declaration within the script right before the execution of the java command:cxf_classpath=${cxf_classpath}:../lib/jaxws-api-2.3.1.jar:../lib/jsr181-api-1.0-MR1.jar

    4. Lastly, I removed the '-Djava.endorsed.dirs="${cxf_home}/lib/endorsed"' parameter from the java command at the end of the script, since newer JDKs no longer support this argument, so my command now looks like this:$JAVA_HOME/bin/java -Xmx${JAVA_MAX_MEM} -cp "${cxf_classpath}" -Djava.util.logging.config.file=$log_config org.apache.cxf.tools.wsdlto.WSDLToJava "$@"

    Now, using OpenJDK11, I'm able to point to an external WSDL file and successfully generate the client code I need to consume this SOAP service with the following command:

    ./wsdl2java -client -d src https://somewhere.com/service\?wsdl

    Whether or not this all works yet is TBD in terms of being able to call and consume the SOAP service I'm coding against, but I've at least now overcome the Java9+ support issue with this tool specific to generating client code from a WSDL.

    If your needs are different, I would at least remove the '-Djava.endorsed.dirs="${cxf_home}/lib/endorsed"' JVM parameter and start calling the wsd2java command with the parameters you need set and just start iteratively adding back in the missing libs it starts throwing java.lang.NoClassDefFoundError errors for.

    Their FAQ specifically says starting in 3.3.x, Java 9+ will be supported but something clearly dropped the ball between the no-longer-supported hardcoded JVM arguments still being passed in the utility and the missing libraries to support the newer JDKs where these legacy libs have been removed.

    Hope this helps someone out there unfortunate enough to ALSO still be programming against SOAP endpoints but trying to at least keep the client-side code you're writing up to date and taking advantage of the newer features of the modern JDK.