WSDL文件转JAVA时出错 wsdl2java

E:\Axis2-1.6.2\bin>wsdl2java -uri E:\EnergyService.wsdl -o E:\i
Using AXIS2_HOME: E:\Axis2-1.6.2
Using JAVA_HOME: E:\jdk
Retrieving document at 'E:\EnergyService.wsdl'.
log4j:WARN No appenders could be found for logger (org.apache.axis2.description.
WSDL11ToAllAxisServicesBuilder).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.apache.axis2.wsdl.codegen.CodeGenerationException
: Error parsing WSDL
at org.apache.axis2.wsdl.codegen.CodeGenerationEngine.(CodeGenerat
ionEngine.java:175)
at org.apache.axis2.wsdl.WSDL2Code.main(WSDL2Code.java:35)
at org.apache.axis2.wsdl.WSDL2Java.main(WSDL2Java.java:24)
Caused by: org.apache.axis2.AxisFault
at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
at org.apache.axis2.description.WSDL11ToAxisServiceBuilder.populateServi
ce(WSDL11ToAxisServiceBuilder.java:411)
at org.apache.axis2.description.WSDL11ToAllAxisServicesBuilder.populateA
llServices(WSDL11ToAllAxisServicesBuilder.java:107)
at org.apache.axis2.wsdl.codegen.CodeGenerationEngine.(CodeGenerat
ionEngine.java:169)
... 2 more
Caused by: java.lang.NullPointerException
at org.apache.axis2.description.WSDL11ToAxisServiceBuilder.populateServi
ce(WSDL11ToAxisServiceBuilder.java:342)
... 4 more

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