In axis tomcat, WS, can't declare any more prefixes in this context are called.

Two problems occurred when calling WebService using the axis client:

First, the interface is called, but the return value is always null. Check the information, which is caused by gnujaxp. jar in jfreechart. The problem is solved;

Second, can't declare any more prefixes in this context

When creating service = new service (), the above error is always reported. Refer to the online WebSphere solution,Xalan. jar, the xml-apis.jar does not change, xercesimpl. jar I did not introduce, in the Tomcat directory \ Tomcat \ j2sdk1.4.2 _ 04 \ JRE \ Lib to create JAXP. properties, the content is:

Javax. xml. parsers. documentbuilderfactory = org. Apache. xerces. JAXP. documentbuilderfactoryimpl
Javax. xml. parsers. saxparserfactory = org. Apache. xerces. JAXP. saxparserfactoryimpl

Restart tomcat to solve the problem