How to get Error Trace on Linux

[Former Member]

Hi All,

I am trying to run my JAR ( A simple JAR that uses JCO) on Linux SUSE 10, when I run it, it just gives me the following error, there is no trace.

How can I get the full trace. Please help.

This is what im doing and the next line is the error message.

dsadm@mach1:/opt/IBM/media/SAP/sapjco> java -jar ditest1.jar

The java class is not found: com/sap/mw/jco/JCO$Exception

dsadm@mach1:/opt/IBM/media/SAP/sapjco>

This is the (ONLY) class file in the JAR, I exported my JAVA project from NWDS as a JAR file.

package com.test;

/**
 * Conn.java
 * Property of SAP AG, Walldorf
 * (c) Copyright SAP AG, Walldorf, 2000-2003.
 * All rights reserved.
 */
import com.sap.mw.jco.*;



public class Conn {

  // The MySAP.com system we gonna be using
  static final String SID = "R3";

  // The repository we will be using
  com.sap.mw.jco.IRepository repository;

  public Conn()
  {
	System.out.println("**** DI11 *****");
   	 this.buildConnection();
	  System.out.println("**** DI 22*****");
  }


  public void buildConnection(){
	try {
      
			System.out.println("**** DI2 *****");
		  // Add a connection pool to the specified system
		  //    The pool will be saved in the pool list to be used
		  //    from other threads by JCO.getClient(SID).
		  //    The pool must be explicitely removed by JCO.removeClientPool(SID)
		com.sap.mw.jco.JCO.addClientPool( SID,         // Alias for this pool
							 10,          // Max. number of connections
							 "040",       // SAP client
							 "testuser",   // userid
							 "pass",  // password
							 "EN",        // language
							 "ipaddress",// host name
							 "xx" );

		  // Create a new repository
		  //    The repository caches the function and structure definitions
		  //    to be used for all calls to the system SID. The creation of
		  //    redundant instances cause performance and memory waste.
      
		  repository = com.sap.mw.jco.JCO.createRepository("MYRepository", SID);
		}
		catch (Exception ex) {
		  System.out.println("Caught an exception: \n" + ex.getMessage());
		} 
  }

  // Retrieves and prints information about the remote system
  public void systemInfo()
  {
    try {

      // Get a function template from the repository
      IFunctionTemplate ftemplate = repository.getFunctionTemplate("RFC_SYSTEM_INFO");

      // if the function definition was found in backend system
      if(ftemplate != null) {

        // Create a function from the template
        JCO.Function function = ftemplate.getFunction();

        // Get a client from the pool
        JCO.Client client = JCO.getClient(SID);

        // We can call 'RFC_SYSTEM_INFO' directly since it does not need any input parameters
        client.execute(function);

        // The export parameter 'RFCSI_EXPORT' contains a structure of type 'RFCSI'
        JCO.Structure s = function.getExportParameterList().getStructure("RFCSI_EXPORT");

        // Use enumeration to loop over all fields of the structure
        System.out.println("System info for " + SID + ":\n" +
        				   "--------------------");

        for (JCO.FieldIterator e = s.fields(); e.hasMoreElements(); ) {
          JCO.Field field = e.nextField();
          System.out.println(field.getName() + ":\t" + field.getString());
        }//for

        System.out.println("\n\n");

        // Release the client into the pool
        JCO.releaseClient(client);
      }
      else {
	    System.out.println("Function RFC_SYSTEM_INFO not found in backend system.");
	  }
    }
	catch (JCO.Exception ex) {
	  System.out.println("Caught an exception: \n" + ex);
	}

  }

  // Retrieves and displays a sales order list
  public void salesOrders()
  {
	JCO.Client client = null;

    try {
      // Get a function template from the repository
      IFunctionTemplate ftemplate = repository.getFunctionTemplate("BAPI_SALESORDER_GETLIST");

      // if the function definition was found in backend system
      if(ftemplate != null) {

		// Create a function from the template
		JCO.Function function = ftemplate.getFunction();

		// Get a client from the pool
		client = JCO.getClient(SID);

		// Fill in input parameters
		JCO.ParameterList input = function.getImportParameterList();

		input.setValue("0000001200", "CUSTOMER_NUMBER"   );
		input.setValue(      "1000", "SALES_ORGANIZATION");
		input.setValue(         "0", "TRANSACTION_GROUP" );

		// Call the remote system
		client.execute(function);

		// Print return message
		JCO.Structure ret = function.getExportParameterList().getStructure("RETURN");
		System.out.println("BAPI_SALES_ORDER_GETLIST RETURN: " + ret.getString("MESSAGE"));

		// Get table containing the orders
		JCO.Table sales_orders = function.getTableParameterList().getTable("SALES_ORDERS");

		// Print results
		if (sales_orders.getNumRows() > 0) {

		  // Loop over all rows
		  do {

		    System.out.println("-----------------------------------------");

		    // Loop over all columns in the current row
		    for (JCO.FieldIterator e = sales_orders.fields(); e.hasMoreElements(); ) {
			  JCO.Field field = e.nextField();
			  System.out.println(field.getName() + ":\t" + field.getString());
		    }//for
		  } while(sales_orders.nextRow());

		}
		else {
		  System.out.println("No results found");
		}//if
      }
      else {
	    System.out.println("Function BAPI_SALESORDER_GETLIST not found in backend system.");
	  }//if
    }
    catch (Exception ex) {
      System.out.println("Caught an exception: \n" + ex);
    }
    finally {
	  // Release the client to the pool
      JCO.releaseClient(client);
	}
  }

  protected void cleanUp() {
    JCO.removeClientPool(SID);
  }

  public static void main(String[] argv)
  {
    Conn e = new Conn();
  e.systemInfo();
  e.salesOrders();
  e.cleanUp();
  }
}

This is standard SAP code, please help on how can I get the complete error trace on linux.

[Former Member]

You do not require RFCSDK to build a jaava application that uses JCO on LINUX.