Error in Java Mapping program

Question

Hi friends,
I am tryin java mapping for first time.. and created one java program using link https://www.sdn.sap.com/irj/scn/wiki?path=/display/xi/wholePayloadtoaXML+field
But when I am compiling it using JAVAC, I am getting following error message that
package com.sap.aii.mapping.api does not exist . How can I solve this error.
Complete error is as follows:
C:j2sdk1.4.2_16-x64 in>javac PayloadToXMLField.java
PayloadToXMLField.java:1: package com.sap.aii.mapping.api does not exist
import com.sap.aii.mapping.api.StreamTransformation;
                               ^
PayloadToXMLField.java:2: package com.sap.aii.mapping.api does not exist
import com.sap.aii.mapping.api.AbstractTrace;
                               ^
PayloadToXMLField.java:3: package com.sap.aii.mapping.api does not exist
import com.sap.aii.mapping.api.StreamTransformationConstants;
                               ^
PayloadToXMLField.java:8: cannot resolve symbol
symbol  : class StreamTransformation
location: class PayloadToXMLField
public class PayloadToXMLField implements StreamTransformation {
                                          ^
PayloadToXMLField.java:16: cannot resolve symbol
symbol  : class AbstractTrace
location: class PayloadToXMLField
    AbstractTrace trace;
    ^
PayloadToXMLField.java:27: cannot resolve symbol
symbol  : class AbstractTrace
location: class PayloadToXMLField
            (AbstractTrace) param.get(
             ^
PayloadToXMLField.java:28: cannot resolve symbol
symbol  : variable StreamTransformationConstants
location: class PayloadToXMLField
                StreamTransformationConstants.MAPPING_TRACE);
                ^
PayloadToXMLField.java:43: cannot resolve symbol
symbol  : variable outputPayload
location: class PayloadToXMLField
        outputPayload =
        ^
PayloadToXMLField.java:50: cannot resolve symbol
symbol  : variable outputPayload
location: class PayloadToXMLField
            out.write(outputPayload.getBytes());
                      ^
9 errors
Thanks,
Brijesh Soni

Answer 1

thanks , it is done now..
the program is compiled properly and class file is generated.
but m gettin error in mapping.
in IR i created two message type  with data type as string.
and i had imported the class file and java program using Imported archives.
now in interface mapping mapping program i had selected type as Java Class.and name of java program.
but when i tested it, it is giving error as Linkage error occurred when loading class zip/PayloadToXMLField
Please suggest, M i doing some thing wrong?is any thing missing?
Program tht i had used in java
from link (https://www.sdn.sap.com/irj/scn/wiki?path=/display/xi/wholePayloadtoaXML+field):
import com.sap.aii.mapping.api.StreamTransformation;
import com.sap.aii.mapping.api.AbstractTrace;
import com.sap.aii.mapping.api.StreamTransformationConstants;
import java.util.Map;
import java.io.*;
public class PayloadToXMLField implements StreamTransformation {
    String strXML = new String();
    String outputPayload = new String();
     //Declare the XML tag for your XML message
     String StartXMLTag = "<Payload>";
     String EndXMLTag = "</Payload>";
    AbstractTrace trace;
    private Map param = null;
    public void setParameter(Map param) {
        this.param = param;
    public void execute(InputStream in, OutputStream out) {
        trace =
            (AbstractTrace) param.get(
                StreamTransformationConstants.MAPPING_TRACE);
        trace.addInfo("Process Started");
        try {
            StringBuffer strbuffer = new StringBuffer();
            byte[] b = new byte[4096];
            for (int n;(n = in.read(b)) != -1;) {
                strbuffer.append(new String(b, 0, n));
            strXML = strbuffer.toString();
        } catch (Exception e) {
            System.out.println("Exception Occurred");
        outputPayload =
            "<?xml version="1.0" encoding="UTF-8"?>"
               + StartXMLTag
               + strXML
               + EndXMLTag;
        try {
            out.write(outputPayload.getBytes());
               trace.addInfo("Process Completed");;
        } catch (Exception e) {
            trace.addInfo("Process Terminated: Error in writing out payload");;
and detailed trace of error is:
11:34:21 Start of test
LinkageError at JavaMapping.load(): Could not load class: zip/PayloadToXMLField
java.lang.NoClassDefFoundError: zip/PayloadToXMLField (wrong name: PayloadToXMLField) at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:539) at java.lang.ClassLoader.defineClass(ClassLoader.java:448) at com.sap.aii.ibrep.server.mapping.ibrun.RepMappingLoader.findClass(RepMappingLoader.java:175) at java.lang.ClassLoader.loadClass(ClassLoader.java:289) at java.lang.ClassLoader.loadClass(ClassLoader.java:235) at com.sap.aii.ibrep.server.mapping.ibrun.RepJavaMapping.load(RepJavaMapping.java:136) at com.sap.aii.ibrep.server.mapping.ibrun.RepJavaMapping.execute(RepJavaMapping.java:50) at com.sap.aii.ibrep.server.mapping.ibrun.RepMappingHandler.run(RepMappingHandler.java:80) at com.sap.aii.ibrep.server.mapping.rt.MappingHandlerAdapter.run(MappingHandlerAdapter.java:107) at com.sap.aii.ibrep.server.mapping.ServerMapService.transformInterfaceMapping(ServerMapService.java:127) at com.sap.aii.ibrep.server.mapping.ServerMapService.transform(ServerMapService.java:104) at com.sap.aii.ibrep.sbeans.mapping.MapServiceBean.transform(MapServiceBean.java:40) at com.sap.aii.ibrep.sbeans.mapping.MapServiceRemoteObjectImpl0_0.transform(MapServiceRemoteObjectImpl0_0.java:167) at com.sap.aii.ibrep.sbeans.mapping.MapServiceRemoteObjectImpl0_0p4_Skel.dispatch(MapServiceRemoteObjectImpl0_0p4_Skel.java:104) at com.sap.engine.services.rmi_p4.DispatchImpl._runInternal(DispatchImpl.java:319) at com.sap.engine.services.rmi_p4.DispatchImpl._run(DispatchImpl.java:200) at com.sap.engine.services.rmi_p4.server.P4SessionProcessor.request(P4SessionProcessor.java:136) at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33) at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41) at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37) at java.security.AccessController.doPrivileged(Native Method) at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:102) at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172)
11:34:21 End of test