Load java issue

Question

I have the following code segment from asktom.com it can compile if I run it as a sql script but when I compile and pack the code as in Eclipse and load it into the db via sqldeveloper I get the following error
java.sql.SQLException: ORA-29509: incorrectly formed Java binary class definition
any help will really be appreciate.
CREATE OR REPLACE AND COMPILE
JAVA SOURCE NAMED "demo_passing_pkg"
AS
import java.io.*;
import java.sql.*;
import java.math.*;
import oracle.sql.*;
import oracle.jdbc.driver.*;
public class demo_passing_pkg extends Object{
public static void pass( java.lang.String p_in,
                         java.lang.String[] p_out ){
     * the simplest of datatypes -- the String.  If you remember
     * the C version with 6 formal parameters, null indicators,
     * strlen's, strcpy's and so on -- this is trivial in
     * comparision
    if ( p_in != null ){
    System.out.println
        ( "The first parameter is " + p_in.toString() );
        p_out[0] = p_in.toUpperCase();
        System.out.println
        ( "Set out parameter to " + p_out[0].toString() );
private static void show_array_info( oracle.sql.ARRAY p_in )
throws SQLException{
    System.out.println( "Array is of type      " +
                         p_in.getSQLTypeName() );
    System.out.println( "Array is of type code " +
                         p_in.getBaseType() );
    System.out.println( "Array is of length    " +
                         p_in.length() );
public static void
pass_str_array( oracle.sql.ARRAY p_in, oracle.sql.ARRAY[] p_out )
throws java.sql.SQLException,IOException{
    show_array_info( p_in );
    String[] values = (String[])p_in.getArray();
    for( int i = 0; i < p_in.length(); i++ )
        System.out.println( "p_in["+i+"] = " + values[i] );
    Connection conn = new OracleDriver().defaultConnection();
    ArrayDescriptor descriptor =
       ArrayDescriptor.createDescriptor( p_in.getSQLTypeName(), conn );
    p_out[0] = new ARRAY( descriptor, conn, values );
public static String return_string(){
    return "Hello World";

Answer 1

if I do this in comand line it works. somehow my eclipse setting is not set to the oracle JVM setting of 1.5 ..
javac -source 1.5 -target 1.5 artst2\demo_passing_pkg.java