Error to generate webservice from java file with JAXWS

Question

I need to build a webservice to run on Glassfish, but I have problems, I did downloaded the latest JAX-WS recently(2 days).
I have the follow class to generate a wsdl file:
package com.dudhoo.farmacopedia.web;
import com.dudhoo.farmacopedia.web.hibernate.FarmacopediaKey;
import com.dudhoo.farmacopedia.web.key.KeyGenerator;
import java.util.Calendar;
import java.util.Date;
import javax.jws.WebMethod;
import javax.jws.WebService;
@WebService(serviceName="FarmacoWebService", name="nomeservice")  
public class FarmacoWebService {
    public FarmacoWebService() {
    @WebMethod()
    public Date getServerTime(){
        return Calendar.getInstance().getTime();
    public FarmacopediaKey generateSerial(Date ini, int dias){
        return new KeyGenerator().generateKey(ini, dias);
}I have the follow ant code:
<?xml version="1.0" encoding="windows-1252" ?>
<!--Ant buildfile generated by Oracle JDeveloper 10g-->
<!--Generated 01/08/2006 22:56:00-->
<project name="FarmacoWeb" default="all" basedir=".">
  <property file="build.properties"/>
  <path id="classpath">
    <fileset dir="../libs/" includes="**/*.jar"/>   
  </path>
  <path id="jaxws.classpath">
    <fileset dir="../libs/jaxws" includes="**/*.jar"/>   
  </path>
  <target name="init">
    <tstamp/>
    <mkdir dir="${output.dir}"/>
    <mkdir dir="${output.dir}/new"/>
    <mkdir dir="${output.dir}/res"/>
  </target>
  <target name="all" description="Build the project" depends="compile,copy"/>
  <target name="clean" description="Clean the project">
    <delete includeemptydirs="true" quiet="true">
      <fileset dir="${output.dir}" includes="**/*"/>
    </delete>
  </target>
  <target name="compile" description="Compile Java source files" depends="init">
    <javac destdir="${output.dir}" classpathref="classpath"
           debug="${javac.debug}" nowarn="${javac.nowarn}"
           deprecation="${javac.deprecation}" encoding="Cp1252" source="1.5"
           target="1.5">
      <src path="src"/>
    </javac>
  </target>
  <target name="copy" description="Copy files to output directory"
          depends="init">
    <patternset id="copy.patterns">
      <include name="**/*.gif"/>
      <include name="**/*.GIF"/>
      <include name="**/*.jpg"/>
      <include name="**/*.JPG"/>
      <include name="**/*.jpeg"/>
      <include name="**/*.JPEG"/>
      <include name="**/*.png"/>
      <include name="**/*.PNG"/>
      <include name="**/*.properties"/>
      <include name="**/*.xml"/>
      <include name="**/*-apf.xml"/>
      <include name="**/*.ejx"/>
      <include name="**/*.xcfg"/>
      <include name="**/*.cpx"/>
      <include name="**/*.dcx"/>
      <include name="**/*.wsdl"/>
      <include name="**/*.ini"/>
      <include name="**/*.tld"/>
      <include name="**/*.tag"/>
    </patternset>
    <copy todir="${output.dir}">
      <fileset dir="src">
        <patternset refid="copy.patterns"/>
      </fileset>
    </copy>
  </target>
  <target name="-pre-dist" >
        <taskdef name="wsgen" classname="com.sun.tools.ws.ant.WsGen">
            <classpath refid="classpath"/>
        </taskdef>
        <wsgen
            debug="true"
            keep="true"
            destdir="${output.dir}/new"
            resourcedestdir="${output.dir}/res"
            sei="com.dudhoo.farmacopedia.web.FarmacoWebService">
            <classpath>
                <pathelement path="${jaxws.classpath}"/>
                <pathelement location="${output.dir}"/>               
            </classpath>
        </wsgen>
    </target>
</project>When I run ant the the follow error is throwed:
Buildfile: /home/duduzera/jdevhome/mywork/Farmaco/FarmacoWeb/build.xml
-pre-dist:
    [wsgen] Problem encountered during annotation processing;
    [wsgen] see stacktrace below for more information.
    [wsgen] java.lang.NoSuchMethodError: javax.jws.WebMethod.exclude()Z
    [wsgen]      at com.sun.tools.ws.processor.modeler.annotation.WebServiceVisitor.hasWebMethods(WebServiceVisitor.java:373)
    [wsgen]      at com.sun.tools.ws.processor.modeler.annotation.WebServiceVisitor.shouldProcessWebService(WebServiceVisitor.java:349)
    [wsgen]      at com.sun.tools.ws.processor.modeler.annotation.WebServiceVisitor.visitClassDeclaration(WebServiceVisitor.java:143)
    [wsgen]      at com.sun.tools.apt.mirror.declaration.ClassDeclarationImpl.accept(ClassDeclarationImpl.java:95)
    [wsgen]      at com.sun.tools.ws.processor.modeler.annotation.WebServiceAP.buildModel(WebServiceAP.java:345)
    [wsgen]      at com.sun.tools.ws.processor.modeler.annotation.WebServiceAP.process(WebServiceAP.java:230)
    [wsgen]      at com.sun.mirror.apt.AnnotationProcessors$CompositeAnnotationProcessor.process(AnnotationProcessors.java:60)
    [wsgen]      at com.sun.tools.apt.comp.Apt.main(Apt.java:454)
    [wsgen]      at com.sun.tools.apt.main.JavaCompiler.compile(JavaCompiler.java:448)
    [wsgen]      at com.sun.tools.apt.main.Main.compile(Main.java:1075)
    [wsgen]      at com.sun.tools.apt.main.Main.compile(Main.java:938)
    [wsgen]      at com.sun.tools.apt.Main.processing(Main.java:95)
    [wsgen]      at com.sun.tools.apt.Main.process(Main.java:85)
    [wsgen]      at com.sun.tools.apt.Main.process(Main.java:67)
    [wsgen]      at com.sun.tools.ws.wscompile.CompileTool.buildModel(CompileTool.java:603)
    [wsgen]      at com.sun.tools.ws.wscompile.CompileTool.run(CompileTool.java:536)
    [wsgen]      at com.sun.tools.ws.util.ToolBase.run(ToolBase.java:54)
    [wsgen]      at com.sun.tools.ws.ant.WsGen.execute(WsGen.java:457)
    [wsgen]      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
    [wsgen]      at org.apache.tools.ant.Task.perform(Task.java:364)
    [wsgen]      at org.apache.tools.ant.Target.execute(Target.java:341)
    [wsgen]      at org.apache.tools.ant.Target.performTasks(Target.java:369)
    [wsgen]      at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
    [wsgen]      at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
    [wsgen]      at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
    [wsgen]      at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
    [wsgen]      at oracle.jdevimpl.ant.runner.AntLauncher.launch(AntLauncher.java:321)
    [wsgen]      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [wsgen]      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    [wsgen]      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    [wsgen]      at java.lang.reflect.Method.invoke(Method.java:585)
    [wsgen]      at oracle.jdevimpl.ant.runner.InProcessAntStarter.runAnt(InProcessAntStarter.java:293)
    [wsgen]      at oracle.jdevimpl.ant.runner.InProcessAntStarter.mav$runAnt(InProcessAntStarter.java)
    [wsgen]      at oracle.jdevimpl.ant.runner.InProcessAntStarter$1.run(InProcessAntStarter.java:71)
    [wsgen] error: compilation failed, errors should have been reported
    [wsgen]
BUILD SUCCESSFUL
Total time: 3 secondsI'm using JDeveloper 10g. Did someone had problems like this?
I think the problem maybe is caused by jar lib concurrences...
thanks

Answer 1

You get that error when response headers have already been sent to the client (browser). This can happen in two ways that I know of:
- you flushed data to the client, or somewhere the data was automatically flushed
- you already did a redirect/forward and are attempting to do a second one.
So if you want to prevent yourself from getting the error, you'll need to make sure that neither of the situations has occurred. Don't output content unless you are absolutely certain that you won't need to foward/redirect later and don't do a redirect/forward twice in the same resource.