Java class files works on middle tier but chokes when called from pl/sql

Hi,
I have 2 class files WorkOrder and xxWorkOrder. xxWorkOrder creates an instance of WorkOrder. Both classes are under the /classes directory. Both compile fine and I have used loadjava to upload/resolve both in the database. I can see them as valid under the user_objects table. I created a function using Pl/sql which calls a method in xxWorkOrder. If I remove the line in xxWorkOrder where it creates an instance of WorkOrder, the pl/sql function works fine via sql plus. If I add the line in, it gives me ORA-29532: Java call terminated by uncaught Java exception: java.lang.ExceptionInInitializerError if i run my test again I get a No classdef found error.
If i run the xxWorkOrder class file directly from the server using java, the code works fine with the instantiation of WorkOrder within it.
I'm not sure which step I am missing ? For some reason when the pl/sql function calls the java method in xxWorkOrder and it sees the line where the instance of WorkOrder is created, it chokes.
Please help!
Preeti

ExceptionInInitializerError means that whatever is being done at the time it occurs is trying to use some class for the first time so that an attempt to initialize that class is occurring and failing. Such a failure typically means that there is code in a static initializer, such as the foo(); in
static SomeType someVarName = foo();
or just any thing within
static { ... }
in the class being initialized which signals an uncaught exception. It's impossible to say why this would be happening in your particular case without seeing the code. Depending on the release you are using there may be more information (such as a backtrace of the original error) in the .trc file. An example of what I am describing in your case would be if the constructor for WorkOrder invoked a method on some class N, where N hadn't previously been used and where N contained
static Class loser = Class.forName('no/such/Class');
In this (admittedly goofy) case you might expect to see in the .trc file a backtrace for the ExceptionInInitializer error with a sub backtrace identified with "Caused by" that starts with a NoClassDefFound exception or the like. This might work outside the server if "no/such/Class" was present there but had not been loaded into the database.

Similar Messages

Java works stand alone does not when called from PL/SQL

I have this piece of code, which works as a standalone program: It takes in the en_var and returns a path.
But it wont work when called from a store procedure the line of code p = rt.exec("echo "+envar); returns a path as a standalone program returns null when called from a Oracle store procedure.
Thanks for any help just going around and round in circles.
import java.util.*;
class translate
public static String translatePath(String envar)
Runtime rt = Runtime.getRuntime();
int bufSize = 4096;
byte buffer[] = new byte[bufSize];
String path = null;
Process p = null;
String os = null;
String name = null;
String home = null;
String dir = null;
SecurityManager sm = null;
int len = 0;
try
System.out.println("Calling echo "+envar);
os = System.getProperty("os.name");
name = System.getProperty("user.name");
home = System.getProperty("user.home");
dir = System.getProperty("user.dir");
sm = System.getSecurityManager();
p = rt.exec("echo "+envar);
BufferedInputStream bis = new BufferedInputStream(p.getInputStream());
while ((len = bis.read(buffer, 0, bufSize)) != -1)
System.out.write(buffer, 0, len);
path = new String(buffer);
//p.waitFor();
bis.close();
return path;
catch(Exception e)
System.out.println("Exception "+e);
return "ProcessProblem";
//path = "/rims/live/log";

Still cant get it to work, it doesnt fall over anymore, but when I input $PATH, it will output $PATH instead of the path for $PATH i.e /rims/live: What does your program output please:
Here is my code:
import java.io.*;
import java.util.*;
class translate
     public static String translatePath(String envar)
          Runtime rt = Runtime.getRuntime();
          Process p = null;
          String echoOutput = null;
          int len = 0;
          try
               System.out.println("Calling echo "+envar);
               p = rt.exec(new String[]{"/bin/echo",envar});
               InputStreamReader isr = new InputStreamReader(p.getInputStream());
               BufferedReader br = new BufferedReader(isr);
               echoOutput = br.readLine();
               br.close();
               isr.close();
               return echoOutput;
          catch(Exception e)
               System.out.println("Exception "+e);
               return "ProcessProblem";
          //path = "/rims/live/log";
Thanks for all your help so far.
Tony

FM CRM_PRIDOC_READ_OW works in source system but not when executed from BW

Hello All,
I have extended an extractor in the source system by adding additional fields.
One of the FM I've used is CRM_PRIDOC_READ_OW. When I run an extraction test in the source system eveything works and data does populates into the new fields.But when I run the infopackage from the BW side, I get an error message which saids the transaction has been terminated. I've been able to trace and pinpoint the possible cause of the error. When I do not call this FM, the infopackage finishes but I do not get data for the new fields and when I do call this FM, I get the error.
Has anyone experiance this issue before?
Your assistance will be much appreciated. Here is a portion of the code I wrote:
loop at I_TABLE into l_s_ZASCRM_OPPT_I.
    lv_guid = l_s_ZASCRM_OPPT_I-GUID.
    lv_item_guid = l_s_ZASCRM_OPPT_I-ITEM_GUID.
    call function 'CRM_PRIDOC_READ_OW'
      exporting
      iv_header_guid = lv_guid
      importing
      ES_PRIDOC = ls_pridoc.
    loop at ls_pridoc-PRIC_COND into ls_pric_cond.
      if ls_pric_cond-kposn = lv_item_guid.
        case ls_pric_cond-STUNR.
          when '40'.
            l_s_ZASCRM_OPPT_I-zz_gpm_ttl_i = ls_pric_cond-kwert.
          when '55'.
            l_s_ZASCRM_OPPT_I-zz_gpd_ttl_i = ls_pric_cond-kwert.
          when '60'.
            l_s_ZASCRM_OPPT_I-zzfy_sp_i = ls_pric_cond-kwert.
          when '70'.
            l_s_ZASCRM_OPPT_I-zzfy_gpm_i = ls_pric_cond-kwert.
          when '80'.
            l_s_ZASCRM_OPPT_I-zzfy_gpd_i = ls_pric_cond-kwert.
        endcase.
      endif.
    endloop.
    append l_s_ZASCRM_OPPT_I to l_s_ZASCRM_OPPT_Itab.
    clear l_s_ZASCRM_OPPT_I.
endloop
Thanks,
Jeff

Hello Geo!
Thank you for your question. I think we mapped all the systems you show. Always the same error. Concerning your systems my transport log would say:
Source system R3DEV does not exist
We mapped this.
Any ideas? Is there maybe something in customizing to do what could be forgetten? The system is newly connected and there have never been a transport compounded to this source system before.
Best regards,
Peter

Stored procedure runs fine from SSMS but fails when called from the C# app

I'm using SS Express 2012 so I doubt I have all possible debugging capabilities at my disposal, although I'm still trying to figure this out myself.
The compiled C# application has logging to insure that the the SP is being invoked, the appropriate line of code is definitely being reached. The logging always reports 'success' suggesting that the SP was successfully executed (and no exception is thrown
to the C# app), but the indexes aren't getting rebuilt (I have a fragmentation query proving they are not rebuilt). Yet it runs successfully if I
(1) set a breakpoint in the C# app and step through the code line by line OR
(2) run the SP from the SSMS GUI.
The fragmentation query confirms sucess for both 1 and 2.
-I can't rely on the GUI because I want to run this overnight immediately after the C# app is finished inserting new records.
- The SP loops through all the tables, and all the indexes in each table, checking for fragmentation and rebuilding any indexes over 7% fragmented.
ALTER Procedure [dbo].[usp_RebuildIndexes]
AS
Declare @fetch_TableName NVARCHAR(256)
DECLARE Cursor_Tables CURSOR FOR
SELECT Name FROM sysobjects WHERE xtype ='U'
OPEN Cursor_Tables
While 1 = 1 -- Begin to Loop through all tables
BEGIN
FETCH NEXT FROM Cursor_Tables INTO @fetch_TableName -- fetches the next table
if @@FETCH_STATUS <> 0 break
print '---------' + @fetch_TableName
Declare @fetch_indexName NVARCHAR(256) -- loops through al indexes of the current table
DECLARE Cursor_Indexes CURSOR FOR -- Looking for indexes fragmented more than 7 percent.
SELECT name as indexName
FROM sys.dm_db_index_physical_stats (DB_ID(DB_Name()), OBJECT_ID(@fetch_TableName), NULL, NULL, NULL) AS a
JOIN sys.indexes AS b ON a.object_id = b.object_id AND a.index_id = b.index_id
Where Name is not null and avg_fragmentation_in_percent > 7
OPEN Cursor_Indexes
WHILE 1= 1 -- Begin to Loop through all Indexes
BEGIN
FETCH NEXT FROM [Cursor_Indexes] INTO @fetch_indexName
if @@FETCH_STATUS <> 0 break
Declare @SqL nvarchar(2000) = N'ALTER INDEX ' + @fetch_indexName + ' ON ' + DB_Name() + '.dbo.' + @fetch_TableName + ' Rebuild'
print @Sql
Begin TRy
Execute sp_executeSQL @sql
End Try
Begin Catch
Declare @err nvarchar(2000) = ERROR_MESSAGE();
throw 51000, @err, 1
End Catch
End -- Ends looping through all indexes
CLOSE [Cursor_Indexes]
DEALLOCATE [Cursor_Indexes]
End -- Ends looping through all tables
CLOSE Cursor_Tables
DEALLOCATE Cursor_Tables
foreach (objDB DB in oUserPrefs.DBs) {
report += DB.Real_Name;
if (DB.cn == null) DB.cn = sqlCn(DB.Real_Name, SystemInformation.ComputerName);
try {
if (DB.cn.State != ConnectionState.Open) DB.cn.Open();
} catch (Exception ex) {
report += " - Failed because can't open a connection.\r\n";
continue;
DB.OpenedAConnection = true;
DataTable dt = null;
try {
dt = oParam.fillDt("dbo.usp_RebuildIndexes", DB.cn, null);
} catch (Exception ex) {
report += " -failed because " + ex.Message + "\r\n\r\n";
continue;
report += " - success.\r\n";
DB.LastTimeRebuiltIndexes = DateTime.Now;

Your proc is a bit of a mess and hard to read. This should get you what you need though. I added a little logic in the middle that determines if the index should be reorged, or rebuilt.
You were right that my script was too messy and I used your code/logic to rewrite mine. Thanks! I tried it this morning and it worked fine, but I will have to see how it runs overnight to be sure.
Here's the weird thing. My original code should have worked. In fact I'm actually using it in 3 c-sharp apps each of which has 3 to 7 Express 2012 databases (about 10 million records per database). For about a month it's been working fine on two of the
apps. Furthermore this morning I used a commercial file-comparison tool to verify that the 3rd app has been running an identical version of the SP. So I'm at a total loss as to what went wrong in the 3rd app.
Here's my rewrite.
Alter Procedure [dbo].[usp_RebuildIndexes]
As
Declare @Messages Table(Msg nvarchar(2000))
Declare @IndexName nvarchar(256), @TableName NVARCHAR(256)
DECLARE Cursor_Indexes CURSOR FAST_FORWARD FOR -- GEt a list of all indexes for all tables.
select idxs.name as indexName, o.Name as TableName
from sys.indexes idxs
inner join sysobjects o on idxs.object_id = o.id
inner join sys.dm_db_index_physical_stats (DB_ID(), NULL, NULL,NULL,NULL) as stats
on stats.object_id = idxs.object_id and stats.index_id = idxs.index_id
where xtype = 'u' and idxs.name is not null And avg_fragmentation_in_percent > 7
OPEN Cursor_Indexes
While 1 = 1
BEGIN
FETCH NEXT FROM Cursor_Indexes INTO @IndexName, @TableName
if @@FETCH_STATUS <> 0 break
Declare @SqL nvarchar(2000) = N'ALTER INDEX ' + @IndexName + ' ON ' + DB_Name() + '.dbo.' + @TableName + ' Rebuild'
insert @Messages(Msg)VALUES(@sql)
Execute sp_executeSQL @sql
End
CLOSE [Cursor_Indexes]
DEALLOCATE [Cursor_Indexes]
Select * From @Messages

Procedure runs in SQL Plus, but not when called from my Oracle Form

Hi. I have this code to send an email alert as the user updates a record on my base table from my Oracle Form. I use dbms_scheduler so that it's submitted as a background job and so the email processing does not delay my Oracle Form from saving quickly. If I submit this code in SQL Plus it executes and I receive the email as expected.
begin
dbms_scheduler.create_job (
     job_name            => 'IMMEDIATE_JOB',
     job_type            => 'PLSQL_BLOCK',
     job_action          => 'begin TTMS.dropperVacationConflict_Notify (62547, ''01-SEP-11'', ''02-SEP-11''); end;',
     number_of_arguments => 0,
     start_date          => sysdate +1/24/59, -- sysdate + 1 minute
     enabled             => TRUE,
     auto_drop           => TRUE,
     comments            => 'Immediate, one-time run');
end;However if I submit this code from a Post-Update trigger in my form the code runs without error, but my email is never received (the same parameter values would be passed to this trigger):
begin
-- Submit the email notification in the background so as to not slow down the screen while saving.
dbms_scheduler.create_job (
     job_name            => 'IMMEDIATE_JOB',
     job_type            => 'PLSQL_BLOCK',
     job_action          => 'begin TTMS.dropperVacationConflict_Notify (:dropper_vacations.dropper_id, :dropper_vacations.begin_dt, :dropper_vacations.end_dt); end;',
     number_of_arguments => 0,
     start_date          => sysdate +1/24/59, -- sysdate + 1 minute
     enabled             => TRUE,
     auto_drop           => TRUE,
     comments            => 'Immediate, one-time run');
end;     Any ideas why this might be happening?

Wow, so I changed the two procedures so that I'm only passing in one number parameter and one char parameter...
CREATE OR REPLACE procedure TTMS.job_vacationconflict_notify (p_dropper_id number, p_other char) IS
CREATE OR REPLACE PROCEDURE TTMS.dropperVacationEmailURL_new (in_dropper_id number, in_other char) ISIf I execute it like this it works and I get the email:
TTMS.job_vacationconflict_notify(62547, 99999);or like this it works and I get the email:
TTMS.job_vacationconflict_notify(62547, '99999');But if I execute it like this (I get no errors) the email is not sent:
TTMS.job_vacationconflict_notify(62547, 'ababa');So this problem really has nothing to do with date formats. It seems to have to do with whether parameter two has characters in it!!! What the heck.
Any ideas on this?
Here is the procedure I'm calling:
CREATE OR REPLACE procedure TTMS.job_vacationconflict_notify (p_dropper_id number, p_other char) IS
begin
dbms_scheduler.create_job (
     job_name            => 'IMMEDIATE_JOB',
     job_type            => 'PLSQL_BLOCK',
     job_action          => 'begin TTMS.dropperVacationemailurl_new ('||p_dropper_id||','||p_other||'); end;',
     number_of_arguments => 0,
     start_date          => sysdate +1/24/59, -- sysdate + 1 minute
     enabled             => TRUE,
     auto_drop           => TRUE,
     comments            => 'Immediate, one-time run');
end;
/And the above procedure is calling this procedure which should be sending the email alert:
CREATE OR REPLACE PROCEDURE TTMS.dropperVacationEmailURL_new (in_dropper_id number, in_other char) IS
      myguid varchar2(15):=null;
      pcm_contact varchar2(3):=null;
      guid_contact varchar2(15):=null;
      conflict_cnt number(8):=0;
      -- Various declarations
      PSENDER VARCHAR2(200);            -- From
      PRECIPIENT VARCHAR2(200);         -- To
      P_CC_RECIPIENT VARCHAR2(200);     -- CC
      P_BCC_RECIPIENT VARCHAR2(200);    -- BCC
      PSUBJECT VARCHAR2(200);           -- Subject
      PMESSAGE VARCHAR2(6000);          -- Message Body
      PPARAMETER NUMBER;                -- Parameter Value
      guid_valid varchar2(15);          -- Used to grab the validation value of
      -- Grab name details of e-mail targets
      cursor targets is
      select guid, initcap(first_name) first_name, initcap(first_name)||' '||initcap(last_name) fullname
      from pwc_employee
      where upper(guid) = upper(guid_contact);
BEGIN
        select count(*)
        into conflict_cnt
        from dropper_bundle_assign
        where
            dropper_sched = in_dropper_id and
            trunc(sched) <> '31-DEC-29' AND
            trunc(sched) between '01-SEP-11' and '02-SEP-11' and
            trunc(sched) > trunc(sysdate);
        select distinct pcm
        into pcm_contact
        from dropper_bundle_assign
        where
              dropper_sched = in_dropper_id and
              trunc(sched) <> '31-DEC-29' AND
              trunc(sched) between '01-SEP-11' and '02-SEP-11' and
              trunc(sched) > trunc(sysdate);
        select guid
        into guid_contact
        from pwc_employee
        where initials = pcm_contact;
    -- Ensure required parameters have been passed
    if guid_contact is not null
       and in_dropper_id is not null then
           Begin
                select guid
                into guid_valid
                from pwc_employee
                where upper(guid) = upper(guid_contact);
           Exception
                when no_data_found then
                raise_application_error(-20000,'Invalid Recipient. Please check the employee table. Please try again.');
           End;
           -- In the event there are multiple targets then we will loop thru and send individual emails
           for thisone in targets loop
                PSENDER := lower(user)||'@us.ibm.com';
                PRECIPIENT := lower(thisone.guid)||'@us.ibm.com';
                P_CC_RECIPIENT := lower(thisone.guid)||'@us.ibm.com';
                P_BCC_RECIPIENT := 'ssbuechl'||'@us.ibm.com';
                PPARAMETER := TO_NUMBER(lower(in_dropper_id));
                PSUBJECT := 'TEST: Dropper Vacation '||in_other||' Conflict Notification for dropper '||in_dropper_id||' - Action Required';
                PMESSAGE := thisone.first_name||'-<br><br>There is an induction conflict due to a new or updated dropper vacation.<br><br>Click here to the dropper''s vacation conflicts: <u><a href="http://9.35.32.205:7777/forms/frmservlet?config=TTMSMENU&form=dropper_vacations&otherparams=p_dropper='||PPARAMETER||'">Dropper Id: '||PPARAMETER||'</a></u> (note: use your Oracle credentials when prompted for log-on information).<br><br>Thanks.';
                SEND_MAIL ( PSENDER, PRECIPIENT, P_CC_RECIPIENT, P_BCC_RECIPIENT, PSUBJECT, PMESSAGE ); -- Procedure to physically send the e-mail notification
           end loop;
    else
          raise_application_error(-20001,'Recipient and Parameter Value are required. Please try again.');
    end if;
exception
    when no_data_found then
         raise_application_error(-20002,'Note: Email will not be sent because no PCM was identified as the manager or the PCM does not have a record in the Employee table. See ITS for assistance.');
     when too_many_rows then
         raise_application_error(-20003,'Note: Email will not be sent because multiple PCMs manage this dropper. Please notify each PCM manually.');
END dropperVacationEmailURL_new;
/Edited by: sharpe on Aug 17, 2011 4:38 PM
Edited by: sharpe on Aug 17, 2011 5:03 PM

SOLVED: powershell script working on its own, access denied when called from a service

Hi powershell experts,
I'm using a powershell script, called by a service with serviceaccount PWSService, which gives an exception denied. This powershell script sets up a remote powershell connection(with a specific account), and runs some powershell scripts remotely on
that server.
When I launch the powershell script manually, by opening the powershell console myself(with "run as" PWSService), the remote session starts and I'm able to succesfully run commands through it.
The PWSService is local admin on the server.
Is there any diffrence in behaviour when powershell scripts are started by a service or started as a "user"? Can someone shed a light on this?
Thanks in advance,
Robin
MCTS, MCPD

hi mjolinor,
We use the following class for the service(Microsoft
live@edu connector):
http://msdn.microsoft.com/en-us/library/system.management.automation.runspaces.wsmanconnectioninfo%28v=vs.85%29.aspx
I use Enter-PSSession to start the commands in de powershell console which works.
MCPD

Why are Java SASLFactories missing when called via PL/SQL but not from JRE?

Hi
This may be quite a technical point about SASL and JCE Providers etc OR it may just be a question about how Oracle PL/SQL interfaces with Java.
The background is that I am trying to get a Java opensource library to run in Oracle DB - this is for specialized communication from Database to other servers.
The library uses a SASL mechanism to authenticate with the server and this (appears) to rely on JCE Providers installed and provided by the JRE.
I have some Java code working which uses the library - this runs OK in NetBeans/Windows environment and also using Linux/Oracle JRE directly such as:
  +# $ORACLE_HOME/jdk/bin/java -classpath "./MyMain.jar:./OtherSupport.jar" package.TestClient+
However it refuses to work (throws a NullPointerException) when called from PL/SQL.
  +FUNCTION send_a_message (iHost IN VARCHAR2,+
     iPort IN NUMBER,
    +iLogin IN VARCHAR2,+
    +iPasswd IN VARCHAR2,+
     iRecipient IN VARCHAR2,
     iMessage IN VARCHAR2) RETURN NUMBER
   AS LANGUAGE JAVA
   NAME package.TestClient.sendATextMessage(java.lang.String, int, java.lang.String, java.lang.String, java.lang.String, java.lang.String) return int';
In the Java code this is:
   public static int sendATextMessage(String iHost,
     int iPort,
     String iLogin,
     String iPasswd
     String iRecipient,
     String iMessage)
I've tracked the issue down to there being no SaslClientFactories (via Sasl.getSaslClientFactories()) showing when called from PL/SQL whereas 3 are available when run from within Java directly. This via:
   Enumeration<SaslClientFactory> facts = Sasl.getSaslClientFactories();
   System.out.println("Found Sasl Factories [" & (facts != null) & "] size[" & Collections.list(facts).size() & "]");
So, is there some aspect of Java initialisation that I'm missing when calling from PL/SQL (which means SASL factories aren't getting loaded into JRE) or is there something different in SASL setup?
Any pointers appreciated.
Thanks
Dave

Ok, after a bit of reading and general hacking about I have got this working.
What I hadn't initially understood/remembered is that for a Stored Procedure the JVM installed on file system with Oracle isn't actually used - java code is loaded into the database and hence a different set of base functions are available. The following is a good explanation of this http://docs.oracle.com/cd/B14117_01/java.101/b12021/appover.htm#BGBIBDAJ
So "out of the box" the Oracle Database appears to come loaded with only two of the Sun security providers i.e. no com.sum.security.SASL
>
OBJECT_NAME             OBJECT_TYPE     STATUS   TIMESTAMP
com/sun/security/auth/NTSid  JAVA CLASS    VALID   2013-02-14:14:08:57
com/sun/security/jgss/GSSUtil    JAVA CLASS    VALID   2013-02-14:14:08:57
>
This is from:
>
SELECT
  object_name,
  object_type,
  status,
  timestamp
FROM
  user_objects
WHERE
  (object_name NOT LIKE 'SYS_%' AND
   object_name NOT LIKE 'CREATE$%' AND
   object_name NOT LIKE 'JAVA$%' AND
   object_name NOT LIKE 'LOADLOB%') AND
   object_type LIKE 'JAVA %' AND
   object_name LIKE 'com/sun/security%'
ORDER BY
  object_type,
  object_name;
>
My solution (which may well be a work-around) is the following:
1) Downloaded JDK Source and extracted "com.sun.security.sasl" java code to my project
2) Added following code to my Stored Procedure ()
>
Enumeration<SaslClientFactory> saslFacts = Sasl.getSaslClientFactories();
if (!saslFacts.hasMoreElements()) {
  System.out.println("Sasl Provider not pre-loaded");
  int added = Security.addProvider(new com.sun.security.sasl.Provider());
  if (added == -1) {
    System.out.println("Sasl Provider could not be loaded");
    System.exit(added);
  else {
    System.out.println("Sasl Provider added");
>
3) Built my JAR file with the sasl package embedded (note: could only find Java 6 code, so had to comment out some GSS lines - but wasn't intending to use these)
4) Loaded JAR to oracle via "loadjava".
5) Add permissions (only found this out after a couple of failed runs)
>
call dbms_java.grant_permission('XMPP', 'SYS:java.security.SecurityPermission', 'putProviderProperty.SunSASL', '' );
call dbms_java.grant_permission('XMPP', 'SYS:java.security.SecurityPermission', 'insertProvider.SunSASL', '' );
>
6) Run gives the following:
>
Sasl Provider not pre-loaded
Sasl Provider added
...etc...
>
It works!. I confess I'm not sure of the implications of this for multiple calls/performance and if it will need to be added for each stored procedure call - may post back.
For completeness I should point out that after my load the Security providers look like this:
>
OBJECT_NAME             OBJECT_TYPE     STATUS   TIMESTAMP
com/sun/security/auth/NTSid    JAVA CLASS    INVALID  2013-02-15:09:11:36
com/sun/security/jgss/GSSUtil    JAVA CLASS    INVALID  2013-02-15:09:11:37
com/sun/security/sasl/Provider    JAVA CLASS    VALID    2013-02-15:10:03:21
>
i.e. the original couple are "INVALID" !
Dave
Edited by: 946763 on Feb 26, 2013 2:35 AM

Problem in finding java class file

I am writting an application using servlets , JSP and a simple java classfile. The simple java class file is for connection pool and the name of connection pool class is DBConnectionManager . I am using JavaWebserver2.0 and I have placed this class file in .\JavaWebserver2.0\classes
I am placing my servlets in .\JavaWebserver2.0\servlets folder. Since I am using wfm package so my servlets are placed in .\JavaWebserver2.0\servlets\wfm .
The problem is with compiling the servlet placed in wfm folder . I get the following error:-
TestServlet.java:11:cannot resolve symbol
symbol: class DBConnectionManager
location: class wfm.TestServlet
However when I try to compile this class in servlets folder and remove the package statement from the source file, it compiles and works very fine. I am having lot of confusion as the class DBConnectionManager is in classpath but even then compiler gives error. The same class when placed in servlets folder and package statement is removed works very fine.
Kindly help.

Hi,
Is the DBConnectionManager class declared public?
Does the TestServlet import the package that contains the DBConnectionManager?
This is all I can come up with, with the current information.
Cheers,
--Arnout

Loading Java Class File in JSP page

I'm trying to load a java class file from a jsp page.
(e.g. MyFile.java <-- Source "MyFile.class<--Class file of MyFile.java")
jsp page
<%@ include file = "MyFile.class" %>
<HTML> // HTML Tags are here
MyFile.java
A normal java source file that has "public static void main" in it.
My jsp page can display it's contents, 'except' for showing e.g. "1235%%215648%%public%%$$@##" through out the page...
My guess is that it can't display my java class file..
Can anyone please help me solve this problem of mine ?
Thanks in advance : )
Yours Sincerely,
RainbowEnergies

This is my JSP file.
<HTML>
<HEAD>
<TITLE>Activity Games</TITLE>
</HEAD>
<%
String name = "";
String id = "";
name = session.getAttribute("name").toString();
session.setAttribute("name",name);
id = session.getAttribute("id").toString();
session.setAttribute("id",id);
%>
<BODY bgcolor="#cc99ff" text="#000000" link="#E3E3E3" vlink="#CCCCCC" alink="#FF0000">
<H3><%=name%>, you have enter Activity Games</H3>
<%@ page import="Games.Lufia.*" %>
<%Lufia lufia = new Lufia();%>
</BODY>
</HTML>
After I execute...
An error occurred at line: 18 in the jsp file: /jsp/ActivityGames.jsp
error: File C:\Program Files\Apache Tomcat 4.0\webapps\website\WEB-INF\classes\Games\Lufia\Lufia.class does not contain type Games.Lufia.Lufia as expected, but type Lufia. Please remove the file, or make sure it appears in the correct subdirectory of the class path.
Generated servlet error:
C:\Program Files\Apache Tomcat 4.0\work\Standalone\localhost\website\jsp\ActivityGames$jsp.java:85: Class Games.Lufia.Lufia not found.
Lufia lufia = new Lufia();
But if I comment this out....
This is my JSP file.
<HTML>
<HEAD>
<TITLE>Activity Games</TITLE>
</HEAD>
<%
String name = "";
String id = "";
name = session.getAttribute("name").toString();
session.setAttribute("name",name);
id = session.getAttribute("id").toString();
session.setAttribute("id",id);
%>
<BODY bgcolor="#cc99ff" text="#000000" link="#E3E3E3" vlink="#CCCCCC" alink="#FF0000">
<H3><%=name%>, you have enter Activity Games</H3>
<%@ page import="Games.Lufia.*" %>
<%//Lufia lufia = new Lufia();%> <--- comment this out.... (HERE)
</BODY>
</HTML>
The page shows but did not run my java class file..
Thanks again for trying to help me solve this problem of mine. : - )
Regards,
RainbowEnergies

Coverting java .class files to .bin files

Dear all :
I am in a need to convert a java .class files to binary format file (i.e.) bin i mean an executable files in Linux.
Is there any possibility using JNI or anyother method to achieve it.
Please post me your suggestions...
Thanks in advance
hope my problem will be solved.
regards
silviya

I can help on this subject, I heard about some
programs that can convert the .exe files to .bin
files, so you can go and search for such programs, if
you hava found them you should go to the following
URL:
http://www.ej-technologies.com/products/exe4j/overv
iew.html
so you can get the exe4j program which
can made exe files for Java programs then after
installing the program you must enter the license key
and the user name and the company name, user name and
company name can be anything you want, but the
license key must be a valid license key here I'm
giving you one of them and I hope it will work
successfully: ( A-XVK103616F-3jpbhxrlcljd )
after that you should declare a .exe file for your
project in java after that you must use the
exe2bin program to convert the .exe
file to a .bin file and I hope that you will be
successful in your target.
And I'm ready to help you anytime, cause you seems to
be a good girl trying hard to learn and be successful
person in this life.i did as u said n i got a problem after i convert jar file to exe....i can't find any program which can convert .exe file to .bin file can u give me any suggestion

How to sign a java class file!

My applet program performs file i/o,loadlibrary operations.so i create a jar file which contains the all java class files of my appln and signed this jar file.My applet prgm works fine.
But now my plm is, i should not create a jar file.how to sign class files? if anybody knows,plz help me.....

Why can't you create jar files?

Where to place an xml file that is read by java class file dir structure

Hello all,
I have an xml file that I am using in lieu of a database to track conference rooms . This is a small file. I need to read this file from my java class file which is used by a jsp. Currently I have an absolute path C://logger/conference.xml. All works fine but I need to deploy to a different machine soon and so I need to place this file somewhere in the project directory structure (created by netbeans) so that it will be included in the war file and can be read by the java class file.
Also what would be the relative path to this suggested directory.
TIA!!!

public class DOMconference {
    /** Creates a new instance of DOMconference */
    public DOMconference() { }
    //private final static String XML_FILE_NAME = "/opt/conference.xml";//set the output file and location
    public String XML_FILE_NAME = "";
    private final static String FIRST_CONF_ID = "8200";//set the initial conference number
    static Document document;
    public void getFilePath(String path)
        XML_FILE_NAME = path.replaceAll("\\\\","/");
        System.out.println("XML==============="+XML_FILE_NAME);
    File file = new File(XML_FILE_NAME);
    *generic method that returns a Document object
   public Document getDocument() throws SAXException, ParserConfigurationException,
           IOException
       DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
       factory.setIgnoringComments(true);
       factory.setCoalescing(true);
       factory.setNamespaceAware(false);
       factory.setValidating(false);
       DocumentBuilder builder = factory.newDocumentBuilder();
       document = builder.parse(file);   //HERE IS WHERE THE ERROR POINT S TO
       return document;
   }Here is the complete error:
INFO: Server startup in 1282 ms
XML===============C:/Documents and Settings/gforte/agi/build/web/WEB-INF/conference.xml
[Fatal Error] bin:1:1: Content is not allowed in prolog.
org.xml.sax.SAXParseException: Content is not allowed in prolog.
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:264)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:172)
at agi.DOMconference.getDocument(DOMconference.java:91)
at agi.DOMconference.getLdapConferences(DOMconference.java:466)
at agi.Ldap.getConferences(Ldap.java:243)
at org.apache.jsp.test_jsp._jspService(test_jsp.java:111)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
[Fatal Error] bin:1:1: Content is not allowed in prolog.
NotifyUtil::java.net.SocketException: Software caused connection abort: recv failed
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:256)
at java.io.BufferedInputStream.read(BufferedInputStream.java:313)
at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:606)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:554)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:571)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:936)
at org.netbeans.modules.web.monitor.server.NotifyUtil$RecordSender.run(NotifyUtil.java:248)
So if I change my code to this (note that all I change is how the constant XML_FILE_NAME is set and I copy and paste the path that is derived from getFilePath after the String.replaceAll call.):
public class DOMconference {
    /** Creates a new instance of DOMconference */
    public DOMconference() { }
    private final static String XML_FILE_NAME = "C:/Documents and Settings/gforte/agi/build/web/WEB-INF/conference.xml";//set the output file and location
    //public String XML_FILE_NAME = "";
    private final static String FIRST_CONF_ID = "8200";//set the initial conference number
    static Document document;
    public void getFilePath(String path)
        //XML_FILE_NAME = path;//.replaceAll("\\\\","/");
        System.out.println("XML==============="+XML_FILE_NAME);
    File file = new File(XML_FILE_NAME);
    *generic method that returns a Document object
   public Document getDocument() throws SAXException, ParserConfigurationException,
           IOException
       DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
       factory.setIgnoringComments(true);
       factory.setCoalescing(true);
       factory.setNamespaceAware(false);
       factory.setValidating(false);
       DocumentBuilder builder = factory.newDocumentBuilder();
       document = builder.parse(file);
       return document;
   }All is fine..
Just in case, here is my xml file contents copy and paste from notepad.
<?xml version="1.0"?><conf_rooms><conf_room><conf_id>8200</conf_id><conf_name>Conference room 1</conf_name></conf_room><conf_room><conf_id>8201</conf_id><conf_name>Conference Room 2</conf_name></conf_room><conf_room><conf_id>8202</conf_id><conf_name>dufus</conf_name></conf_room></conf_rooms>Thanks for hanging in there with me on this.
Graham

How to convert a .jsp to a .java/.class file for use in peoplesoft

Hi java/jsp experts,
I want to convert a .jsp to a .java/.class file. is there a tool available, please let me know if you have any pointers....
or can i do it manually:
these are a few lines that the .jsp contains, and i would like to translate this to be in .java/.class format:
<%@ page import="sun.misc.BASE64Encoder, javax.crypto., javax.crypto.spec."%>
<%@ page import="java.util.StringTokenizer" %>
<%@ page import="java.util.Map" %>
<%!
sb.append("<input type=\"hidden\" name=\"orderPage_serialNumber\" value=\"");
sb.append(serialNumber);
sb.append("\">\n");
return sb.toString();
%>
how can i translate the above import statements and html elements from jsp to java, please let me know.
Once i have the .java file created from the .jsp, I will compile .java to create the .class file and invoke the .class in peoplecode by using java apis available in peopletools.
Thanks in advance.

Is there a way convert a binary .exe file( compiled by
another compiler) into Java .class/.jar file ? Anyone
know of a free program that can do this?It's not possible. There are many decompilers and disassemblers for Java but nothing will take you from ANY binary to Java source. It would be the end of computing as we know it and the beginning of a new era -:)

How to convert java .class file to .dll file

hi,
I got a problem, I have to convert my java .class file to .dll file. Microsoft VC++ program will invoke the converted .dll file.
Is there any other possibility.
I was confused.
Cam any body help me. If you are having solution for the can you send to my [email protected] account.
thanks,

No, it is not possible to do what you are suggesting. Yes, you could produce a DLL that wraps the JVM and loads your java class exposing a C and/or C++ callable interface, but that is a lot to go through unless your class is VERY complex. Otherwise, you might want to just create and maintain two implementations.

How to access variables declared in java class file from jsp

i have a java package which reads values from property file. i have imported the package.classname in jsp file and also i have created an object for the class file like
classname object=new classname();
now iam able to access only the methods defined in the class but not the variables. i have defined connection properties in class file.
in jsp i need to use
statement=con.createstatement(); but it shows variable not declared.
con is declared in java class file.
how to access the variables?
thanks

here is the code
* testbean.java
* Created on October 31, 2006, 12:14 PM
package property;
import java.beans.*;
import java.io.Serializable;
public class testbean extends Object implements Serializable {
public String sampleProperty="test2";
public String getSampleProperty() {
return sampleProperty;
}jsp file
<%@ page contentType="text/html;charset=windows-1252"%>
<%@ page import="java.sql.*,java.util.*"%>
<html>
<head>
<title>Schedule Details</title>
</head>
<jsp:useBean id="ConProp" class="property.testbean"/>
<body>
Messge is : <jsp:getProperty name="msg" property="sampleProperty"/>
<%
out.println(ConProp.sampleProperty);
%>
</body>
</html>out.println(ConProp.sampleProperty) prints null value.
is this the right procedure to access bean variables
thanks

Java class files works on middle tier but chokes when called from pl/sql

Similar Messages

Maybe you are looking for