Websphere exception "Branch target offset too large for short" when using Webservices

Question

When my Websphere application tries to make a call to a webservice, I get the exception:

javax.xml.ws.soap.SOAPFaultException: com.ibm.xtq.bcel.generic.ClassGenException: Branch target offset too large for short
    at org.apache.axis2.jaxws.marshaller.impl.alt.MethodMarshallerUtils.createSystemException(MethodMarshallerUtils.java:1363)
    at org.apache.axis2.jaxws.marshaller.impl.alt.MethodMarshallerUtils.demarshalFaultResponse(MethodMarshallerUtils.java:1089)

I read that XL-TXE-J can be configured somehow, but I don't know if this is in correlation with my error. I also have no Idea where I should configure it.

How can I resolve this issue?

Answer 1

I have no idea why, but setting the com.ibm.xml.xlxp.jaxb.opti.level JVM property to 1 makes the issue disappear.

You can configure it on your Websphere:

Application servers > [yourserver] > Process definition > Java Virtual Machine > Custom properties

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