me encuentroIllegalArgumentException mientras se envía una solicitud de publicación al servicio web de descanso. Si comento el método de solicitud de correos (getEmplByPostReqParam()) entonces, el código funciona bien para obtener la solicitud pero congetEmplByPostReqParam(), todos los tiros de solicitudIllegalArgumentException.

¿Puede por favor ayudar a identificar el problema.

Código de servicio web:

@Path("/employee")
public class EmployeeInfoService {

    // This method is called if TEXT_PLAIN is request
    @GET
    @Path("/get/{id}")
    @Produces(MediaType.APPLICATION_ATOM_XML)
    public Employee getEmplById(@PathParam("id") String id) {
        System.out.println("sayPlainTextHello");
        EmployeeDAO dbHandler = new EmployeeDAOImpl();
        Employee fetchedEmployee = dbHandler.findEmployee(Integer.parseInt(id));
        return fetchedEmployee;
    }

    @GET
    @Path("/get")
    @Produces(MediaType.APPLICATION_ATOM_XML)
    public Employee getEmplByGetReqParam(@QueryParam("param1") String id) {
        System.out.println("getEmplByGetReqParam");
        EmployeeDAO dbHandler = new EmployeeDAOImpl();
        Employee fetchedEmployee = dbHandler.findEmployee(Integer.parseInt(id));
        return fetchedEmployee;
    }

    @POST
    @Path("/get")
    @Produces("MediaType.TEXT_PLAIN")
    public String getEmplByPostReqParam(@FormParam("param1") String id) {
        System.out.println("getEmplByPostReqParam");
        EmployeeDAO dbHandler = new EmployeeDAOImpl();
        Employee fetchedEmployee = dbHandler.findEmployee(Integer.parseInt(id));
        return fetchedEmployee.toString();
    }

}

Usé dos clientes para probar el servicio: 1. El cliente Advance Rest de Google chrome

url - http://myhost:14443/de.vogella.jersey.first/rest/employee/get
payload - [param1: 1]
method type - [post]

código de Java Core

   String url = "http://myhost:14443/de.vogella.jersey.first/rest/employee/get";
   String charset = "UTF-8";
   String param1 = "1";

    String query = String.format("param1=%s",
            URLEncoder.encode(param1, charset));

    URL service = new URL(url);
    URLConnection connection = service.openConnection();
    connection.setDoOutput(true); // Triggers POST.
    connection.setRequestProperty("Accept-Charset", charset);
    connection.setRequestProperty("Content-Type",
            "application/x-www-form-urlencoded;charset=" + charset);
    OutputStream output = connection.getOutputStream();
    try {
        output.write(query.getBytes(charset));
    } catch (Exception e) {
        // TODO: handle exception
    }

Stacktrace:

</pre></p><p><b>root cause</b> <pre>java.lang.IllegalArgumentException: java.text.ParseException: End of header
    com.sun.jersey.core.header.MediaTypes.createQualitySourceMediaTypes(MediaTypes.java:289)
    com.sun.jersey.core.header.MediaTypes.createQualitySourceMediaTypes(MediaTypes.java:274)
    com.sun.jersey.server.impl.modelapi.annotation.IntrospectionModeller.addProduces(IntrospectionModeller.java:171)
    com.sun.jersey.server.impl.modelapi.annotation.IntrospectionModeller.workOutSubResourceMethodsList(IntrospectionModeller.java:342)
    com.sun.jersey.server.impl.modelapi.annotation.IntrospectionModeller.createResource(IntrospectionModeller.java:126)
    com.sun.jersey.server.impl.application.WebApplicationImpl.getAbstractResource(WebApplicationImpl.java:744)
    com.sun.jersey.server.impl.application.WebApplicationImpl.createAbstractResourceModelStructures(WebApplicationImpl.java:1564)
    com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1328)
    com.sun.jersey.server.impl.application.WebApplicationImpl.access$700(WebApplicationImpl.java:168)
    com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:774)
    com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:770)
    com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193)
    com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:770)
    com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:765)
    com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:489)
    com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:319)
    com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605)
    com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:210)
    com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:374)
    com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:557)
    javax.servlet.GenericServlet.init(GenericServlet.java:160)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
    org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    java.lang.Thread.run(Unknown Source)
</pre></p><p><b>root cause</b> <pre>java.text.ParseException: End of header
    com.sun.jersey.core.header.reader.HttpHeaderReaderImpl.getNextCharacter(HttpHeaderReaderImpl.java:168)
    com.sun.jersey.core.header.reader.HttpHeaderReaderImpl.next(HttpHeaderReaderImpl.java:129)
    com.sun.jersey.core.header.reader.HttpHeaderListAdapter.next(HttpHeaderListAdapter.java:111)
    com.sun.jersey.core.header.reader.HttpHeaderListAdapter.next(HttpHeaderListAdapter.java:98)
    com.sun.jersey.core.header.reader.HttpHeaderReader.nextSeparator(HttpHeaderReader.java:116)
    com.sun.jersey.core.header.QualitySourceMediaType.valueOf(QualitySourceMediaType.java:85)
    com.sun.jersey.core.header.reader.HttpHeaderReader$5.create(HttpHeaderReader.java:360)
    com.sun.jersey.core.header.reader.HttpHeaderReader$5.create(HttpHeaderReader.java:358)
    com.sun.jersey.core.header.reader.HttpHeaderReader.readList(HttpHeaderReader.java:481)
    com.sun.jersey.core.header.reader.HttpHeaderReader.readList(HttpHeaderReader.java:473)
    com.sun.jersey.core.header.reader.HttpHeaderReader.readAcceptableList(HttpHeaderReader.java:461)
    com.sun.jersey.core.header.reader.HttpHeaderReader.readQualitySourceMediaType(HttpHeaderReader.java:365)
    com.sun.jersey.core.header.reader.HttpHeaderReader.readQualitySourceMediaType(HttpHeaderReader.java:373)
    com.sun.jersey.core.header.MediaTypes.createQualitySourceMediaTypes(MediaTypes.java:287)
    com.sun.jersey.core.header.MediaTypes.createQualitySourceMediaTypes(MediaTypes.java:274)
    com.sun.jersey.server.impl.modelapi.annotation.IntrospectionModeller.addProduces(IntrospectionModeller.java:171)
    com.sun.jersey.server.impl.modelapi.annotation.IntrospectionModeller.workOutSubResourceMethodsList(IntrospectionModeller.java:342)
    com.sun.jersey.server.impl.modelapi.annotation.IntrospectionModeller.createResource(IntrospectionModeller.java:126)
    com.sun.jersey.server.impl.application.WebApplicationImpl.getAbstractResource(WebApplicationImpl.java:744)
    com.sun.jersey.server.impl.application.WebApplicationImpl.createAbstractResourceModelStructures(WebApplicationImpl.java:1564)
    com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1328)
    com.sun.jersey.server.impl.application.WebApplicationImpl.access$700(WebApplicationImpl.java:168)
    com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:774)
    com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:770)
    com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193)
    com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:770)
    com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:765)
    com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:489)
    com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:319)
    com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605)
    com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:210)
    com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:374)
    com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:557)
    javax.servlet.GenericServlet.init(GenericServlet.java:160)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
    org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    java.lang.Thread.run(Unknown Source)