HP OpenVMS Systems

Java CLASSPATH Handling?

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The Question is:

 
Java Question:
 
  I am trying to use the following code to connect to Jturbos jdbc driver for
 MS SQL Server. Works fine on Unix,NT,MAC and compiles fine on OpenVMS but I
 get Classnotfound error on
 
   Class.forName ("com.ashna.jturbo.driver.Driver");
 
my CLASSPATH is set fine and my directory structure looks like
(e.g.
 DISK$0:[USER.JTURBO4-20.COM.ASHNA.TURBO.DRIVER]
 
Where I execute JAVA CLASS:
 DISK$0:[USER.JTURBO4-20]
Executing command
 java "stest"
 
 
  it seem as though the JM is having problems qualifying the qualified path.
 
Any Suggestions would be appreciated.
 
Thanks!
 
JAVA CODE:
 
 
import java.sql.*;
/**
 * Test retreiving values back using scrollable updatable resultSet.
 *
 */
public class stest
 
   static public void main(String args[])
      throws java.lang.ClassNotFoundException, Exception
   {
       Connection cx = null;
       Statement stmt;
       ResultSet rs;
      try {
            Class.forName("com.ashna.jturbo.driver.Driver");
            String      url      = "jdbc:JTurbo://pch329:1433/Product
 Catalog/sql70=true";
            String      user     = "xxx";
            String      password = "xxx";
            //DriverManager.setLogStream(System.out);
 
            cx      = java.sql.DriverManager.getConnection(url, user, password);
            System.out.println("Connected");
            stmt = cx.createStatement();
	      rs = stmt.executeQuery("SELECT * from test;");
	      System.out.println("Got results:");
	      while(rs.next()) {
		 String str = rs.getString(1);
		 System.out.println(str);
	      }
        }
        catch(Exception e) {
            System.out.println(e);
        }
      cx.close();
      System.exit(-1);
   }
 
 
 
 

The Answer is :

 
  Here is an example of working with classpaths:
 
$ java -version
java version "1.2.2-1"
Classic VM (build J2SDK.v.1.2.2-1:07/29/2000-02:00, native threads, jit_122)
$ ty HelloWorld.java
public class HelloWorld {
        public static void main(String[] args) {
        System.out.println ("Hello Java!");
        }
 
$ javac HelloWorld.java
$ java "HelloWorld
Hello Java!
$ jar -cvf h.jar "HelloWorld.class
added manifest
adding: HelloWorld.class(in = 425) (out= 291)(deflated 31%)
$ del HelloWorld.class.*
$ java "HelloWorld
Exception in thread "main" java.lang.NoClassDefFoundError: HelloWorld
$ java -classpath h.jar "HelloWorld
Hello Java!
$ sh log classpath
%SHOW-S-NOTRAN, no translation for logical name CLASSPATH
$ def/user classpath h.jar
$ java "HelloWorld
Hello Java!
$ sh log java$classpath
%SHOW-S-NOTRAN, no translation for logical name JAVA$CLASSPATH
$ def/user java$classpath h.jar
$ java "HelloWorld
Hello Java!
 

  

     

     
answer written or last revised on ( 24-OCT-2000 )
     
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