Re: loadjava: JAR with long package names

From: bung ho <bung_ho_at_hotmail.com>
Date: 16 Jun 2003 09:28:42 -0700
Message-ID: <567a1b1.0306160828.17c8e465@posting.google.com>

"Ralf Jonas" <scraponly_at_hotmail.com> wrote in message news:<bcju26$jut5i$1_at_ID-6634.news.dfncis.de>...
>
> Imagine this sample Java source:
>
> public class Sample
> {
> public static long SampleTest() throws java.lang.ClassNotFoundException
> {
> Class.forName("com.dataimages.processors.access.DataAccessory");
> .
> .
>
> This code results in a java.lang.ClassNotFoundException. Obviously this
> doesn't work because the loaded class names are truncated at 30 characters.
> Classes with names less than 31 characters are loaded correctly.
>

how do you know that it's because of the package name length? i tried it on my (old) 8.1.6 system and it worked.

DataAccessory.java:

// ----
package com.dataimages.processors.access;

public class DataAccessory {

public static String boo() {

return "boo";
}

}
// ----

C:\misc>javac -d . DataAccessory.java

C:\misc>jar cvfM dataacc.jar
com\dataimages\processors\access\DataAccessory.class adding: com/dataimages/processors/access/DataAccessory.class(in = 306) (out= 229)(deflated 25%)

C:\misc>loadjava -verbose -user user/pass_at_host:1521:sid -thin -resolve dataacc.jar
initialization complete

loading  : com/dataimages/processors/access/DataAccessory
creating : com/dataimages/processors/access/DataAccessory
resolver :
resolving: com/dataimages/processors/access/DataAccessory

C:\misc>sqlplus user/pass_at_sid

SQL*Plus: Release 8.1.7.0.0 - Production on Mon Jun 16 12:10:39 2003

Connected to:
Oracle8i Enterprise Edition Release 8.1.6.0.0 - Production With the Partitioning option
JServer Release 8.1.6.0.0 - Production

SQL> create or replace and compile java source named lala as   2 import com.dataimages.processors.access.DataAccessory;   3 public class loo {
  4 public static String doit() {
  5 try {
  6 DataAccessory da;
  7 Class c = Class.forName("com.dataimages.processors.access.DataAccessory");

8
9 da = (DataAccessory) c.newInstance(); 10 return da.boo();
11 } catch (Exception ex) {
12 ex.printStackTrace();
13 return null;

 14  }
 15  }
 16  };

17 /

Java created.

SQL> create or replace function lalatest return varchar2 as language java name 'loo.doit() return java.lang.String'; 2 /

Function created.

SQL> select lalatest from dual;

LALATEST

boo Received on Mon Jun 16 2003 - 11:28:42 CDT