SAPXPG Problems

Hi Experts,
OS: Linux RH4AS (x86_64)
SAP SRM 5.0, DB - Oracle 10.2.0.2
My jobs in DB13 currently are failing with the following error:
SXPG_COMMAND_EXECUTE failed for BRCONNECT - Reason: x_error
I am using a distributed environment with a standalone DB on one server and the CI on another server. I do <b>NOT</b> have a standalone gateway on the DB server and am trying to connect using remote calls. I have set the parameter gw/remsh to ssh.
What Works:
ssh between both servers have been setup and I can successfully test this from the OS level.
The <sid>adm user is setup on both servers with the same shell and permissions and I can access the DB server through ssh and run brtools functions.
The SAPDBHOST has been specified with the DB Server.
I have created an entry in SM69 for ssh and tested with SM49 successfully. Eg: If I pass the parameter ls -l, it returns with the list of files present.
/usr/bin/ssh -q srmdtst01 ls -al -
Works
/usr/bin/ssh -q srmdtst01 sapxpg ls -al -- Does NOT work.
What Does NOT Work:
SAPXPG when run with the above entry in SM69 returns nothing, which according to note 446172 is supposed to mean that everything is all right. But RFC SAPXPG_DBDEST_<DBSERVER> also fails the connection test. I've got Activation type in the RFC set to "Start on Explicit Host" and have even provided the full path to sapxpg on the DB Server. The RFC connection test fails with a "timeout during allocate".
What should I set the "start type of External Program" to in the RFC? Its currently set to Default Gateway Value but I've tried all the other options and it still fails.
Any other ideas on why sapxpg fails to start?
Regards,
Chengappa Ballachanda

Problem was that the server name was not fully qualified in the ssh known hosts file. This caused a "host key verification" failure causing the RFC to fail.
Regards,
Chengappa

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Hello Janos,
I checked SAPDBHOST parameter in DEFAULT.PFL:
SAPDBHOST = SAP-TSC
BRCONNECT is located in the directory with appropriate user rights.
Also I checked developer traces:dev_rd
LOCATION    SAP-Gateway on host SAP-TSC / sapgw00
* ERROR       timeout during allocate
* TIME        Wen May 07 16:08:10 2014
* RELEASE     720
* COMPONENT   SAP-Gateway
* VERSION     2
* RC          242
* MODULE      gwr3cpic.c
* LINE        6070
* DETAIL      no connect of TP sapxpg from host SAP-TSC.localdomain after 20
*              sec
* COUNTER     11
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Sapxpg program core_dump,   how can I do? need your help

In my AIX system , I get such an error:
I do not know what can I do ?     do you have any advise?    thanks
LABEL:          CORE_DUMP
IDENTIFIER:     A63BEB70
Date/Time:       Sun Jul 13 07:01:34 2008
Sequence Number: 3823
Machine Id:      00C0EEEC4C00
Node Id:         KS1DSDB1
Class:           S
Type:            PERM
Resource Name:   SYSPROC
Description
SOFTWARE PROGRAM ABNORMALLY TERMINATED
Probable Causes
SOFTWARE PROGRAM
User Causes
USER GENERATED SIGNAL
        Recommended Actions
        CORRECT THEN RETRY
Failure Causes
SOFTWARE PROGRAM
        Recommended Actions
        RERUN THE APPLICATION PROGRAM
        IF PROBLEM PERSISTS THEN DO THE FOLLOWING
        CONTACT APPROPRIATE SERVICE REPRESENTATIVE
Detail Data
SIGNAL NUMBER
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USER'S PROCESS ID:
                438672
FILE SYSTEM SERIAL NUMBER
          17
INODE NUMBER
           9
PROCESSOR ID
           6
CORE FILE NAME
/usr/sap/PRD/DVEBMGS00/work/core
PROGRAM NAME
sapxpg
STACK EXECUTION DISABLED
           0
ADDITIONAL INFORMATION
Unable to generate symptom string.
Stack is unusable.

here is the content of file:dev_cp    ,    I do not know whether there are any problems?   and my sapxpg generated core_dump in 07:00 AM,    I can not find any record at the time 07:00 AM,
Trace file of control program (trace level 3)
< Function: BtcTrcInit> Function: main SAPXPG 640
2008-07-13--15-00-21 : Before BtcXpgDetach
> Function: BtcXpgDetach    Can't detach from process group (already leader)
< Function: BtcXpgDetach Accept RFC connection from R/3 system
2008-07-13--15-00-21 : Before RfcAccept
2008-07-13--15-00-21 : RfcAccept returned OK
security check switched OFF
Install RFC call SAPXPG_START_XPG
Install RFC call SAPXPG_START_XPG_LONG
Install RFC call SAPXPG_END_XPG
Wait for RFC call SAPXPG_START_XPG or SAPXPG_START_XPG_LONG
2008-07-13--15-00-21 : Before first call of RFCDispatch
> Function: BtcXpgStartXpg
2008-07-13--15-00-21 : Beginning of BtcXpgStartXpg
    > Function: BtcXpgStartXpgImport      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgTable      < Function: BtcXpgTable    < Function: BtcXpgStartXpgImport    > Function: BtcXpgStartXpgInt      > Function: BtcXpgItTransfer        Content of source log table:
          Line Text
          <No StdOut/StdErr output reported>
        Target log table is not identical to source
        ItGetLine terminated with NULL
      < Function: BtcXpgItTransfer      > Function: BtcTrcReset        Trace level reset to 3
      < Function: BtcTrcReset      Call mode: VIA RFC
      Input arguments of BtcXpgStartXpg:
        External program: brarchive
        Program argument string: -u / -c force -p initPRD.sap -cds
        Contents of control flags:
          StdIn control flag: redirect StdIn
          StdOut control flag: store StdOut output in memory
          StdErr control flag: store StdErr output in memory
          Trace control flag: trace level 0
          Termination control flag: control program will wait for termination
      > Function: BtcXpgCheck        > Function: BtcXpgArgv          Scanned parameter 1: -u
          Scanned parameter 2: /
          Scanned parameter 3: -c
          Scanned parameter 4: force
          Scanned parameter 5: -p
          Scanned parameter 6: initPRD.sap
          Scanned parameter 7: -cds
          Total number of arguments scanned: 7
          Argument argv[0]: brarchive
        < Function: BtcXpgArgv      < Function: BtcXpgCheck      > Function: BtcXpgSigInst        set signal handler for SIGCHLD to SIG_DFL
        old signal handler for SIGCHLD: SIG_IGN
      < Function: BtcXpgSigInst      > Function: BtcXpgStart        > Function: BtcTrcInit        Process id: 442864
        Parent process id: 233906
      < Function: BtcXpgStart      Start status of external program: external program successfully started
      Id of external process: 0000930102
      StdOut/StdErr collected in memory
        Line Text
        <No StdOut/StdErr output reported>
    < Function: BtcXpgStartXpgInt    > Function: BtcXpgStartXpgExport      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam    < Function: BtcXpgStartXpgExport
2008-07-13--15-00-21 : End of BtcXpgStartXpg
< Function: BtcXpgStartXpg
2008-07-13--15-00-21 : After first call of RFCDispatch
Wait for RFC call SAPXPG_END_XPG
2008-07-13--15-00-21 : Before second call of RFCDispatch
> Function: BtcXpgEndXpg
2008-07-13--15-00-21 : Beginning of BtcXpgEndXpg
    > Function: BtcXpgEndXpgImport      > Function: BtcXpgTable      < Function: BtcXpgTable    < Function: BtcXpgEndXpgImport    > Function: BtcXpgEndXpgInt      > Function: BtcXpgItTransfer        Content of source log table:
          Line Text
          <No StdOut/StdErr output reported>
        Target log table is not identical to source
        ItGetLine terminated with NULL
      < Function: BtcXpgItTransfer      > Function: BtcXpgReadChild        Read returns 28 bytes
        > Function: BtcXpgLog          Log message (27 byte): BR0002I BRARCHIVE 6.40 (15)
        < Function: BtcXpgLog        Read returns 79 bytes
        > Function: BtcXpgLog          Log message (78 byte): BR0006I Start of offline redo log processing: adyivkpp.cds 2008-07-13 15.00.21
        < Function: BtcXpgLog        Read returns 113 bytes
        > Function: BtcXpgLog          Log message (112 byte): BR0477I Oracle pfile /oracle/PRD/920_64/dbs/initPRD.ora created from spfile /oracle/PRD/920_64/dbs/spfilePRD.ora
        < Function: BtcXpgLog        Read returns 1 bytes
        > Function: BtcXpgLog          Log message (0 byte):
        < Function: BtcXpgLog        Read returns 55 bytes
        > Function: BtcXpgLog          Log message (54 byte): BR0013W No offline redo log files found for processing
        < Function: BtcXpgLog        Read returns 183 bytes
        > Function: BtcXpgLog          Log message (0 byte):
        < Function: BtcXpgLog        > Function: BtcXpgLog          Log message (76 byte): BR0007I End of offline redo log processing: adyivkpp.cds 2008-07-13 15.00.27
        < Function: BtcXpgLog        > Function: BtcXpgLog          Log message (49 byte): BR0280I BRARCHIVE time stamp: 2008-07-13 15.00.27
        < Function: BtcXpgLog        > Function: BtcXpgLog          Log message (54 byte): BR0004I BRARCHIVE completed successfully with warnings
        < Function: BtcXpgLog        Process executing external program has terminated
      < Function: BtcXpgReadChild      > Function: BtcXpgEnd        > Function: BtcXpgLog          Log message (44 byte): External program terminated with exit code 1
        < Function: BtcXpgLog      < Function: BtcXpgEnd      Termination status of external program: program terminated with error code 1
      StdOut/StdErr collected in memory
        Line Text
           1 BR0002I BRARCHIVE 6.40 (15)
           2 BR0006I Start of offline redo log processing: adyivkpp.cds 2008-07-13 15.00.21
           3 BR0477I Oracle pfile /oracle/PRD/920_64/dbs/initPRD.ora created from spfile /oracle/PRD/920_64/dbs/spfilePRD.ora
           4
           5 BR0013W No offline redo log files found for processing
           6
           7 BR0007I End of offline redo log processing: adyivkpp.cds 2008-07-13 15.00.27
           8 BR0280I BRARCHIVE time stamp: 2008-07-13 15.00.27
           9 BR0004I BRARCHIVE completed successfully with warnings
          10 External program terminated with exit code 1
    < Function: BtcXpgEndXpgInt    > Function: BtcXpgEndXpgExport      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam    < Function: BtcXpgEndXpgExport
2008-07-13--15-00-27 : End of BtcXpgEndXpg
< Function: BtcXpgEndXpg
2008-07-13--15-00-27 : After second call of RFCDispatch
2008-07-13--15-00-27 : After call of RfcClose (wait)
< Function: main
2008-07-13--15-00-27 : End of SAPXPG: main

Sapxpg - connection to partner broken (SLD - SolMan)

Hello,
I've problem wtih my RFC-Connection SAPXPG_DBDEST_<host>.
To collect data for dba-cockpit, we need a RFC-Connection between SolMan and SLD:
RFC Destination     SAPXPG_DBDEST_HBMESA5A
Connection Type T TCP/IP Connection                 Description
Description 1       sapxpg
Program               sapxpg
Target Host          hbmesa5a......
Save as               10.0.61.86
                                 20     Defined Value in Seconds
Gateway Host        hbmesa5a......
Gateway service:   sapgw00
Gatway is running correct.
Connection Test gives result:
Logon     Cancel
Error Details     connection to partner '127.0.0.1:0' broken / CPIC-CALL: 'ThSAPCMRCV' : cmRc=20 t
Error Details     ERROR: connection to partner '127.0.0.1:0' broken
Error Details     LOCATION: SAP-Gateway on host hbmesa5a / sapgw00
Error Details     DETAIL: NiIRead: 127.0.0.1:0
Error Details     CALL: recv
Error Details     COMPONENT: NI (network interface)
Error Details     COUNTER: 9655
Error Details     MODULE: nixxi.cpp
Error Details     LINE: 4702
Error Details     RETURN CODE: -6
Error Details     SUBRC: 0
Error Details     RELEASE: 711
Error Details     TIME: Fri Feb 4 17:28:20 2011
Error Details     VERSION: 39
rfc-connection from our solution manager to the target host.
Could anyone give us advice? Thanks in advance
Best Regards
Gerry Vanek
Edited by: Gerry Vanek on Feb 4, 2011 5:34 PM

Hello,
we fixed the problem. Really simple when you know ...;()
We deleted the existing RFC-Connection and created a new one with the same parameters.
After that the connection works fine. The RFC had the problem, probably a corrupted entry in the table.
Best regards
Gerry Vanek
Edited by: Gerry Vanek on Feb 25, 2011 3:37 PM

Starting external progran SAPXPG failed (SM69)

System Information:
ECC 6, Oracle 10.2, AIX 5.3, Kernel Patch level 147
Hi all,
We were encountered problems when try to scheduled actions in DB13.
We had install CI & DB on separate server and the rfc SAPXPG_DBDEST_<Destination> is not working.
We tried to use RSH in SM49/SM69 to start external program SAPXPG in target host remotely, however, it return External program terminated with exit code 1 when we executed it.
*External command we used
Rsh
Target host u2013l <sid>adm sapxpg
Logs of dev_cp:
Trace file of control program (trace level 3)
< Function: BtcTrcInit> Function: main SAPXPG 700
2009-02-05--21-18-10 : Before BtcXpgDetach
> Function: BtcXpgDetach < Function: BtcXpgDetach Accept RFC connection from R/3 system
2009-02-05--21-18-10 : Before RfcAccept
2009-02-05--21-18-10 : RfcAccept returned OK
security check switched OFF
Install RFC call SAPXPG_START_XPG
Install RFC call SAPXPG_START_XPG_LONG
Install RFC call SAPXPG_END_XPG
Wait for RFC call SAPXPG_START_XPG or SAPXPG_START_XPG_LONG
2009-02-05--21-18-10 : Before first call of RFCDispatch
> Function: BtcXpgStartXpgLong
2009-02-05--21-18-10 : Beginning of BtcXpgStartXpgLong
    > Function: BtcXpgStartXpgImportLong      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgTable      < Function: BtcXpgTable    < Function: BtcXpgStartXpgImportLong
BtcXpgStartXpgLong: special_trace_flag = <3>
    > Function: BtcXpgStartXpgInt      > Function: BtcXpgItTransfer        Content of source log table:
          Line Text
          <No StdOut/StdErr output reported>
        Target log table is not identical to source
        ItGetLine terminated with NULL
      < Function: BtcXpgItTransfer      > Function: BtcTrcReset      < Function: BtcTrcReset      Call mode: VIA RFC
      Input arguments of BtcXpgStartXpg:
        External program: rsh
      tracecntl = : 3
        Program argument string: bir-hrerpdb -l prdadm sappxpg
        Contents of control flags:
          StdIn control flag: redirect StdIn
          StdOut control flag: store StdOut output in memory
          StdErr control flag: store StdErr output in memory
          Trace control flag: unknown contents
          Termination control flag: control program will wait for termination
      > Function: BtcXpgCheck        > Function: BtcXpgArgv
          parameter number 1:
          Scanned parameter: bir-hrerpdb
          parameter number 2:
          Scanned parameter: -l
          parameter number 3:
          Scanned parameter: prdadm
          parameter number 4:
          Scanned parameter: sappxpg
          Total number of arguments scanned: 4
          Argument argv[0]: rsh
        < Function: BtcXpgArgv      < Function: BtcXpgCheck      > Function: BtcXpgSigInst        set signal handler for SIGCHLD to SIG_DFL
        old signal handler for SIGCHLD: SIG_DFL
      < Function: BtcXpgSigInst      > Function: BtcXpgStart        Process id: 172232
        Parent process id: 352710
        > Function: BtcTrcIni      Start status of external program: external program successfully started
      Id of external process: 0000323746
      StdOut/StdErr collected in memory
        Line Text
        <No StdOut/StdErr output reported>
    < Function: BtcXpgStartXpgInt    > Function: BtcXpgStartXpgExport      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam    < Function: BtcXpgStartXpgExport
2009-02-05--21-18-10 : End of BtcXpgStartXpgLong
< Function: BtcXpgStartXpgLong
2009-02-05--21-18-10 : After first call of RFCDispatch
Wait for RFC call SAPXPG_END_XPG
2009-02-05--21-18-10 : Before second call of RFCDispatch
> Function: BtcXpgEndXpg
2009-02-05--21-18-10 : Beginning of BtcXpgEndXpg
    > Function: BtcXpgStartXpgExport      > Function: BtcXpgTable      < Function: BtcXpgTable    < Function: BtcXpgEndXpgImport    > Function: BtcXpgEndXpgInt      > Function: BtcXpgItTransfer        Content of source log table:
          Line Text
          <No StdOut/StdErr output reported>
        Target log table is not identical to source
        ItGetLine terminated with NULL
      < Function: BtcXpgItTransfer      > Function: BtcXpgReadChild        Process executing external program has terminated
      < Function: BtcXpgReadChild      > Function: BtcXpgEnd        > Function: BtcXpgLog
          Log message (44 byte): External program terminated with exit code 1
        < Function: BtcXpgLog
      < Function: BtcXpgEnd      Termination status of external program: program terminated with error code 1
      StdOut/StdErr collected in memory
    < Function: BtcXpgEndXpgInt    > Function: BtcXpgEndXpgExport      > Function: BtcXpgParam      < Function: BtcXpgParam      > Function: BtcXpgParam      < Function: BtcXpgParam    < Function: BtcXpgEndXpgExport
2009-02-05--21-18-10 : End of BtcXpgEndXpg
< Function: BtcXpgEndXpg
2009-02-05--21-18-10 : After second call of RFCDispatch
2009-02-05--21-18-10 : After call of RfcClose (wait)
< Function: main
2009-02-05--21-18-10 : End of SAPXPG: main
We couldnu2019t located any clear error indication that might help us in troubleshooting.
We already configured settings in .rhosts file & we had resolve the permission problem
We executed the following commands as user <sid>adm:
In DB host, we executed rsh <CI host> date & it works.
But in DB hosts, its doesn't work when we executed rsh <DB host> date
Is this issue should be isolated as AIX OS issue?
We couldn't execute any activities from DB13 as the DB rfc destination is not working.
Is that alternative way that we can execute sapxpg on DB host?
Or we have to install standalone gateway as solution? It's that any impact if we installing standalone gateway at DB host now (It's production system)?
Thanks.
BR,
Terry

Hi Guru,
When we tried to execute the following command from host DB:
rsh <Host CI> date
it was return results.
However, if we tried to execute from host CI:
rsh <Host DB> data
it was return no results.
That's means we could'nt remotely start any of external command at DB host from CI host.
Start external program error was isolated within operating system level.
Any luck on this?
Thanks.
BR,
Terry

Problem in BRBACKUP tool

Dear All,
We are facing a problem with BRBACKUP tool.
DB: 10.2g
OS: AIX:5.3
SAP: on ECC6
while taking the backup BTTOOLS at ORA<sid> we are getting this error:
hgdevsrv:orahds 1> brbackup
BR0051I BRBACKUP 7.00 (18)
BR0055I Start of database backup: bdypgckw.aft 2008-08-16 10.48.02
BR0280I BRBACKUP time stamp: 2008-08-16 10.48.03
BR0301E SQL error -28000 at location BrDbConnect-2, SQL statement:
'CONNECT system/*******'
ORA-28000: the account is locked
BR0310E Connect to database instance HDS failed
BR0280I BRBACKUP time stamp: 2008-08-16 10.48.03
BR0301E SQL error -28000 at location BrDbConnect-2, SQL statement:
'CONNECT system/*******'
ORA-28000: the account is locked
BR0310E Connect to database instance HDS failed
BR0056I End of database backup: bdypgckw.aft 2008-08-16 10.48.03
BR0280I BRBACKUP time stamp: 2008-08-16 10.48.03
BR0054I BRBACKUP terminated with errors
hgdevsrv:orahds 2>
anyone can help us in this regards.
Udaya

Hi,
here is the output of the command:
ls -ltr
total 1366600
-rwxrwxrwx   1 hdsadm   sapsys      6296599 Oct 10 2005 SAPCAR
-rwxrwxrwx   1 hdsadm   sapsys     21870937 Jul 13 2006 sgxgis.so
-rwxrwxrwx   1 hdsadm   sapsys     24079692 Jul 13 2006 bwgis.so
-rwxrwxrwx   1 hdsadm   sapsys     37136343 Jul 13 2006 xmlchart.so
-rwxrwxrwx   1 hdsadm   sapsys     37964714 Jul 13 2006 gfwchart.so
-rwxrwxrwx   1 hdsadm   sapsys     11175935 Jul 13 2006 imgconv.so
-rwxrwxrwx   1 hdsadm   sapsys      6923619 Jul 13 2006 zipper.so
-rwxrwxrwx   1 hdsadm   sapsys     39749327 Jul 13 2006 igsmux_mt
-rwxrwxrwx   1 hdsadm   sapsys     13453369 Jul 13 2006 igspw_mt
-rwxrwxrwx   1 hdsadm   sapsys      9724226 Jul 13 2006 igswd_mt
-rwxrwxrwx   1 hdsadm   sapsys          380 Jul 13 2006 igsmanifest.mf
-rwxrwxrwx   1 hdsadm   sapsys          118 Jul 13 2006 igsexe.lst
-rwxrwxrwx   1 hdsadm   sapsys        20557 Aug 29 2006 saproot.sh
-rwxrwxrwx   1 hdsadm   sapsys           25 Aug 29 2006 rfcexec.sec
-rwxrwxrwx   1 hdsadm   sapsys          349 Aug 29 2006 icm.properties
-rwxrwxrwx   1 hdsadm   sapsys          362 Aug 29 2006 gw.properties
-rwxrwxrwx   1 hdsadm   sapsys         4898 Aug 29 2006 sapsecin
-rwxrwxrwx   1 hdsadm   sapsys      2655695 Aug 29 2006 libsapsecu.o
-rwxrwxrwx   1 hdsadm   sapsys       275931 Aug 29 2006 libsapu16.so
-rwxrwxrwx   1 hdsadm   sapsys      1701425 Aug 29 2006 libicuuc30.a
-rwxrwxrwx   1 hdsadm   sapsys      2315841 Aug 29 2006 libicui18n30.a
-rwxrwxrwx   1 hdsadm   sapsys      8558147 Aug 29 2006 libicudata30.a
-rwxrwxrwx   1 hdsadm   sapsys      1974810 Aug 29 2006 dboraslib.o
-rwxrwxrwx   1 hdsadm   sapsys       135740 Aug 29 2006 icmadmin.SAR
-rwxrwxrwx   1 hdsadm   sapsys       135740 Aug 29 2006 wdispadmin.SAR
-rwxrwxrwx   1 hdsadm   sapsys       278227 Aug 29 2006 libsapu16_mt.so
-rwxrwxrwx   1 hdsadm   sapsys       440093 Aug 30 2006 sapparar
-rwxrwxrwx   1 hdsadm   sapsys       452599 Aug 30 2006 rscpf2f
-rwxrwxrwx   1 hdsadm   sapsys       443035 Aug 30 2006 rscpf3f
-rwxrwxrwx   1 hdsadm   sapsys      2846132 Aug 30 2006 sapiconv
-rwxrwxrwx   1 hdsadm   sapsys       603232 Aug 30 2006 rstrcscs
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-rwxrwxrwx   1 hdsadm   sapsys       646108 Aug 30 2006 rslgview
-rwxrwxrwx   1 hdsadm   sapsys       612490 Aug 30 2006 rslglscs
-rwxrwxrwx   1 hdsadm   sapsys       676488 Aug 30 2006 rslgsend
-rwxrwxrwx   1 hdsadm   sapsys       713823 Aug 30 2006 rslgcoll
-rwxrwxrwx   1 hdsadm   sapsys      1007914 Aug 30 2006 rsyn.bin
-rwxrwxrwx   1 hdsadm   sapsys      1449408 Aug 30 2006 estst
-rwxrwxrwx   1 hdsadm   sapsys      1308052 Aug 30 2006 esmon
-rwxrwxrwx   1 hdsadm   sapsys       797569 Aug 30 2006 es2mon
-rwxrwxrwx   1 hdsadm   sapsys       950444 Aug 30 2006 eg2mon
-rwxrwxrwx   1 hdsadm   sapsys      1316302 Aug 30 2006 emmon
-rwxrwxrwx   1 hdsadm   sapsys      1048338 Aug 30 2006 em2mon
-rwxrwxrwx   1 hdsadm   sapsys      1492603 Aug 30 2006 niping
-rwxrwxrwx   1 hdsadm   sapsys      1578793 Aug 30 2006 saprouter
-rwxrwxrwx   1 hdsadm   sapsys      1867600 Aug 30 2006 lgtst
-rwxrwxrwx   1 hdsadm   sapsys      1624956 Aug 30 2006 msclients
-rwxrwxrwx   1 hdsadm   sapsys      1672525 Aug 30 2006 msprot
-rwxrwxrwx   1 hdsadm   sapsys      2240056 Aug 30 2006 msmon
-rwxrwxrwx   1 hdsadm   sapsys       565400 Aug 30 2006 shmd
-rwxrwxrwx   1 hdsadm   sapsys       611578 Aug 30 2006 semd
-rwxrwxrwx   1 hdsadm   sapsys       520209 Aug 30 2006 evtd
-rwxrwxrwx   1 hdsadm   sapsys       196925 Aug 30 2006 showipc
-rwxrwxrwx   1 hdsadm   sapsys       196925 Aug 30 2006 cleanipc
-rwxrwxrwx   1 hdsadm   sapsys       212106 Aug 30 2006 ipclimits
-rwxrwxrwx   1 hdsadm   sapsys       231969 Aug 30 2006 memlimits
-rwxrwxrwx   1 hdsadm   sapsys      6991743 Aug 30 2006 sapftp
-rwxrwxrwx   1 hdsadm   sapsys      6943227 Aug 30 2006 saphttp
-rwxrwxrwx   1 hdsadm   sapsys      1667948 Aug 30 2006 sapevt
-rwxrwxrwx   1 hdsadm   sapsys      7527362 Aug 30 2006 R3load
-rwxrwxrwx   1 hdsadm   sapsys      3775948 Aug 30 2006 R3ldctl
-rwxrwxrwx   1 hdsadm   sapsys      3712423 Aug 30 2006 R3szchk
-rwxrwxrwx   1 hdsadm   sapsys       715897 Aug 30 2006 sapstart
-rwxrwxrwx   1 hdsadm   sapsys       477843 Aug 30 2006 sappfpar
-rwxrwxrwx   1 hdsadm   sapsys       218196 Aug 30 2006 sapexec
-rwxrwxrwx   1 hdsadm   sapsys       193391 Aug 30 2006 sapdbmrfc
-rwxrwxrwx   1 hdsadm   sapsys      1763986 Aug 30 2006 ldapreg
-rwxrwxrwx   1 hdsadm   sapsys      1484670 Aug 30 2006 ldappasswd
-rwxrwxrwx   1 hdsadm   sapsys      7136455 Aug 30 2006 sapkprotp
-rwxrwxrwx   1 hdsadm   sapsys      1618451 Aug 30 2006 icmbnd
-rwxrwxrwx   1 hdsadm   sapsys      6663776 Aug 30 2006 icman
-rwxrwxrwx   1 hdsadm   sapsys      3195644 Aug 30 2006 wdispmon
-rwxrwxrwx   1 hdsadm   sapsys      3195644 Aug 30 2006 icmon
-rwxrwxrwx   1 hdsadm   sapsys      5453274 Aug 30 2006 sapwebdisp
-rwxrwxrwx   1 hdsadm   sapsys      3846342 Aug 30 2006 msg_server
-rwxrwxrwx   1 hdsadm   sapsys      4374803 Aug 30 2006 enserver
-rwxrwxrwx   1 hdsadm   sapsys      4049147 Aug 30 2006 enrepserver
-rwxrwxrwx   1 hdsadm   sapsys      2629812 Aug 30 2006 sapcontrol
-rwxrwxrwx   1 hdsadm   sapsys      2577636 Aug 30 2006 jcontrol
-rwxrwxrwx   1 hdsadm   sapsys      2469450 Aug 30 2006 jcmon
-rwxrwxrwx   1 hdsadm   sapsys      2884983 Aug 31 2006 sapcpp46.o
-rwxrwxrwx   1 hdsadm   sapsys      4989311 Aug 31 2006 xml63d.o
-rwxrwxrwx   1 hdsadm   sapsys      1250398 Aug 31 2006 libsapcsa.o
-rwxrwxrwx   1 hdsadm   sapsys      4135920 Aug 31 2006 ensmon
-rwxrwxrwx   1 hdsadm   sapsys      3061184 Sep 01 2006 dbadaslib.o
-rwxrwxrwx   1 hdsadm   sapsys      3062980 Sep 01 2006 dw_stl.o
-rwxrwxrwx   1 hdsadm   sapsys      6669034 Sep 01 2006 dw_xml.o
-rwxrwxrwx   1 hdsadm   sapsys     12174711 Sep 01 2006 dw_xtc.o
-rwxrwxrwx   1 hdsadm   sapsys      4870154 Sep 01 2006 dbsdbslib.o
-rwxrwxrwx   1 hdsadm   sapsys     22473926 Sep 01 2006 dw_gui.o
-rwxrwxrwx   1 hdsadm   sapsys      1018112 Sep 01 2006 libregex.o
-rwxrwxrwx   1 hdsadm   sapsys       589928 Sep 01 2006 ABAP.pad
-rwxrwxrwx   1 hdsadm   sapsys       785165 Sep 01 2006 dw_mdm.o
-rwxrwxrwx   1 hdsadm   sapsys      4496721 Sep 01 2006 dsrlib.o
-rwxrwxrwx   1 hdsadm   sapsys      3179825 Sep 01 2006 libjmon.so
-rwxrwxrwx   1 hdsadm   sapsys        54697 Sep 01 2006 jstartup.jar
-rwxrwxrwx   1 hdsadm   sapsys         8769 Sep 01 2006 jstartupapi.jar
-rwxrwxrwx   1 hdsadm   sapsys        41450 Sep 01 2006 jstartupimpl.jar
-rwxrwxrwx   1 hdsadm   sapsys      8687038 Sep 01 2006 sldreglib.o
-rwxrwxrwx   1 hdsadm   sapsys      6411808 Sep 01 2006 sapxpg
-rwxrwxrwx   1 hdsadm   sapsys     64526772 Sep 01 2006 disp+work
-rwxrwxrwx   1 hdsadm   sapsys       601467 Sep 01 2006 sapmscsa
-rwxrwxrwx   1 hdsadm   sapsys      6155926 Sep 01 2006 rscpf_db
-rwxrwxrwx   1 hdsadm   sapsys      5188115 Sep 01 2006 gwrd
-rwxrwxrwx   1 hdsadm   sapsys      1750824 Sep 01 2006 gwmon
-rwxrwxrwx   1 hdsadm   sapsys      3242380 Sep 01 2006 dpmon
-rwxrwxrwx   1 hdsadm   sapsys      3085776 Sep 01 2006 dpj2ee
-rwxrwxrwx   1 hdsadm   sapsys     12223752 Sep 01 2006 tp
-rwxrwxrwx   1 hdsadm   sapsys      9011300 Sep 01 2006 R3check
-rwxrwxrwx   1 root     sapsys      1045454 Sep 01 2006 saposcol
-rwxrwxrwx   1 hdsadm   sapsys      7327140 Sep 01 2006 mdxsvr
-rwxrwxrwx   1 hdsadm   sapsys      2490999 Sep 01 2006 saplicense
-rwxrwxrwx   1 hdsadm   sapsys      4898876 Sep 01 2006 dipgntab
-rwxrwxrwx   1 hdsadm   sapsys      2998859 Sep 01 2006 enqt
-rwxrwxrwx   1 hdsadm   sapsys      6708948 Sep 01 2006 startrfc
-rwxrwxrwx   1 hdsadm   sapsys      6714877 Sep 01 2006 rfcexec
-rwxrwxrwx   1 hdsadm   sapsys      6713982 Sep 01 2006 rfcping
-rwxrwxrwx   1 hdsadm   sapsys      7093934 Sep 01 2006 ldap_rfc
-rwxrwxrwx   1 hdsadm   sapsys      6780788 Sep 01 2006 ssfrfc
-rwxrwxrwx   1 hdsadm   sapsys      3074561 Sep 01 2006 rscparulib.o
-rwxrwxrwx   1 hdsadm   sapsys      1065559 Sep 01 2006 rscpf_ars
-rwxrwxrwx   1 hdsadm   sapsys      1162752 Sep 01 2006 libjperflib.so
-rwxrwxrwx   1 hdsadm   sapsys        13034 Sep 01 2006 jperflib.jar
-rwxrwxrwx   1 hdsadm   sapsys      6665005 Sep 01 2006 libjenqulib.o
-rwxrwxrwx   1 hdsadm   sapsys        86826 Sep 01 2006 jenqulib.jar
-rwxrwxrwx   1 hdsadm   sapsys      7064803 Sep 01 2006 librfcum.o
-rwxrwxrwx   1 hdsadm   sapsys      5987307 Sep 01 2006 sapstartsrv
drwxrwxrwx   3 hdsadm   sapsys          256 Sep 01 2006 servicehttp
-rwxrwxrwx   1 hdsadm   sapsys     14467904 Sep 01 2006 sapccm4x
-rwxrwxrwx   1 hdsadm   sapsys     14612207 Sep 01 2006 sapccmsr
drwxrwxrwx   5 hdsadm   sapsys          256 Sep 01 2006 jkit
drwxrwxrwx   4 hdsadm   sapsys          256 Sep 01 2006 cfw
-rwxrwxrwx   1 hdsadm   sapsys     11082007 Sep 01 2006 jlaunch
-rwxrwxrwx   1 hdsadm   sapsys      2410270 Sep 01 2006 vscan_rfc
-rwxrwxrwx   1 hdsadm   sapsys       805165 Sep 01 2006 sldreg
-rwxrwxrwx   1 hdsadm   sapsys          318 Sep 01 2006 webdispinst.lst
-rwxrwxrwx   1 hdsadm   sapsys          430 Sep 01 2006 scsclient.lst
-rwxrwxrwx   1 hdsadm   sapsys          311 Sep 01 2006 scs.lst
-rwxrwxrwx   1 hdsadm   sapsys          537 Sep 01 2006 sapmanifest.mf
-rwxrwxrwx   1 hdsadm   sapsys         2226 Sep 01 2006 sapcpeft
-rwxrwxrwx   1 hdsadm   sapsys          430 Sep 01 2006 j2eeinst.lst
-rwxrwxrwx   1 hdsadm   sapsys         1218 Sep 01 2006 instance.lst
-rwxrwxrwx   1 hdsadm   sapsys          215 Sep 01 2006 gateway.lst
-rwxrwxrwx   1 hdsadm   sapsys          552 Sep 01 2006 sapmanifestdb.mf
-rwxrwxrwx   1 hdsadm   sapsys          195 Sep 01 2006 instancedb.lst
-rwxrwxrwx   1 hdsadm   sapsys          362 Sep 01 2006 exe_ora.lst
-rwxrwxrwx   1 hdsadm   sapsys       566788 Oct 11 2006 sapcpe
-rwxrwxrwx   1 hdsadm   sapsys      9231773 Oct 18 2006 R3trans
-rwxrwxrwx   1 hdsadm   sapsys         4889 Oct 21 2006 sapdba_role.sql
-rwxrwxrwx   1 hdsadm   sapsys         1664 Oct 21 2006 sapconn_role.sql
-rwxrwxrwx   1 hdsadm   sapsys        20837 Oct 21 2006 initSID.sap
-rwxrwxrwx   1 hdsadm   sapsys      1482671 Oct 21 2006 libsbt.o
-rwxrwxrwx   1 orahds   dba         1929358 Oct 21 2006 brrestore
-rwxrwxrwx   1 orahds   dba         4493034 Oct 26 2006 brarchive
-rwxrwxrwx   1 orahds   dba         4619637 Oct 26 2006 brbackup
-rwxrwxrwx   1 orahds   dba         6072423 Oct 26 2006 brconnect
-rwxrwxrwx   1 orahds   dba         5070138 Oct 26 2006 brrecover
-rwxrwxrwx   1 orahds   dba         6176926 Oct 26 2006 brspace
-rwxrwxrwx   1 orahds   dba         2248568 Oct 26 2006 brtools
-rwxrwxrwx   1 hdsadm   sapsys          135 Oct 27 2006 dbatoolsora.lst
-rwxrwxrwx   1 hdsadm   sapsys         4743 Apr 03 2007 jdbcconnect.jar
-rwxrwxrwx   1 hdsadm   sapsys        48966 Apr 03 2007 stopsap
-rwxrwxrwx   1 hdsadm   sapsys        11119 Apr 03 2007 stopj2eedb
-rwxrwxrwx   1 hdsadm   sapsys        11119 Apr 03 2007 stopdb
-rwxrwxrwx   1 hdsadm   sapsys        53873 Apr 03 2007 startsap
-rwxrwxrwx   1 hdsadm   sapsys        15752 Apr 03 2007 startj2eedb
-rwxrwxrwx   1 hdsadm   sapsys        15752 Apr 03 2007 startdb
drwxrwxrwx   3 hdsadm   sapsys          256 Apr 03 2007 uc
drwxrwxrwx   3 hdsadm   sapsys          256 Apr 03 2007 nuc
##pwd
/usr/sap/HDS/SYS/exe/run
Best Regards
Udaya Bhaslar

Problems upgrading the version of the operating system to Maverick.

Hello everyone and thanks for your help.
I'm trying to update the version of the OS X operating system to Maverick, also download the latest version of XCode and every time I try to do I get the following error:
15/04/14 16:56:35,507 ReceiptInstaller[482]: 3891612: (CGSLookupServerRootPort) Untrusted apps are not allowed to connect to or launch Window Server before login.
15/04/14 16:56:35,507 ReceiptInstaller[482]: kCGErrorRangeCheck: On-demand launch of the Window Server is allowed for root user only.
15/04/14 16:56:35,508 ReceiptInstaller[482]: CGSLookupServerRootPort: Failed to look up the port for "com.apple.windowserver.active" (1100)
15/04/14 16:56:35,512 ReceiptInstaller[482]: kCGErrorRangeCheck: On-demand launch of the Window Server is allowed for root user only.
15/04/14 16:56:35,512 ReceiptInstaller[482]: CGSLookupServerRootPort: Failed to look up the port for "com.apple.windowserver.active" (1100)
15/04/14 16:56:35,845 sandboxd[483]: ([482]) ReceiptInstaller(482) deny file-read-data /private/var/root/Library/Preferences/.GlobalPreferences.plist
15/04/14 16:56:35,933 sandboxd[483]: ([482]) ReceiptInstaller(482) deny file-read-data /Library/Preferences/.GlobalPreferences.plist
15/04/14 16:56:35,947 sandboxd[483]: ([482]) ReceiptInstaller(482) deny mach-lookup com.apple.windowserver.active
15/04/14 16:56:35,953 sandboxd[483]: ([482]) ReceiptInstaller(482) deny mach-lookup com.apple.windowserver.active
What should I do?

Hola Jose,
is this happening with a certain command or with all of them?.
Basically seems like connection is timing out.. so make sure that the host were the command is running is reachable. Also you can find more info about the problem in the SAPXPG logs.... I had a similar issue in the past and i solve it by updating the version of SAPXPG on the sap kernel.
Regards
Juan

A problem with threads

I am trying to implement some kind of a server listening for requests. The listener part of the app, is a daemon thread that listens for connections and instantiates a handling daemon thread once it gets some. However, my problem is that i must be able to kill the listening thread at the user's will (say via a sto button). I have done this via the Sun's proposed way, by testing a boolean flag in the loop, which is set to false when i wish to kill the thread. The problem with this thing is the following...
Once the thread starts excecuting, it will test the flag, find it true and enter the loop. At some point it will LOCK on the server socket waiting for connection. Unless some client actually connects, it will keep on listening indefinatelly whithought ever bothering to check for the flag again (no matter how many times you set the damn thing to false).
My question is this: Is there any real, non-theoretical, applied way to stop thread in java safely?
Thank you in advance,
Lefty

This was one solution from the socket programming forum, have you tried this??
public Thread MyThread extends Thread{
     boolean active = true;
     public void run(){
          ss.setSoTimeout(90);
          while (active){
               try{
                    serverSocket = ss.accept();
               catch (SocketTimeoutException ste){
               // do nothing
     // interrupt thread
     public void deactivate(){
          active = false;
          // you gotta sleep for a time longer than the
          // accept() timeout to make sure that timeout is finished.
          try{
               sleep(91);
          }catch (InterruptedException ie){
          interrupt();
}

A problem with Threads and MMapi

I am tring to execute a class based on Game canvas.
The problem begin when I try to Play both a MIDI tone and to run an infinit Thread loop.
The MIDI tone "Stammers".
How to over come the problem?
Thanks in advance
Kobi
See Code example below:
import java.io.IOException;
import java.io.InputStream;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.media.Manager;
import javax.microedition.media.MediaException;
import javax.microedition.media.Player;
public class MainScreenCanvas extends GameCanvas implements Runnable {
     private MainMIDlet parent;
     private boolean mTrucking = false;
     Image imgBackgound = null;
     int imgBackgoundX = 0, imgBackgoundY = 0;
     Player player;
     public MainScreenCanvas(MainMIDlet parent)
          super(true);
          this.parent = parent;
          try
               imgBackgound = Image.createImage("/images/area03_bkg0.png");
               imgBackgoundX = this.getWidth() - imgBackgound.getWidth();
               imgBackgoundY = this.getHeight() - imgBackgound.getHeight();
          catch(Exception e)
               System.out.println(e.getMessage());
      * starts thread
     public void start()
          mTrucking = true;
          Thread t = new Thread(this);
          t.start();
      * stops thread
     public void stop()
          mTrucking = false;
     public void play()
          try
               InputStream is = getClass().getResourceAsStream("/sounds/scale.mid");
               player = Manager.createPlayer(is, "audio/midi");
               player.setLoopCount(-1);
               player.prefetch();
               player.start();
          catch(Exception e)
               System.out.println(e.getMessage());
     public void run()
          Graphics g = getGraphics();
          play();
          while (true)
               tick();
               input();
               render(g);
      * responsible for object movements
     private void tick()
      * response to key input
     private void input()
          int keyStates = getKeyStates();
          if ((keyStates & LEFT_PRESSED) != 0)
               imgBackgoundX++;
               if (imgBackgoundX > 0)
                    imgBackgoundX = 0;
          if ((keyStates & RIGHT_PRESSED) != 0)
               imgBackgoundX--;
               if (imgBackgoundX < this.getWidth() - imgBackgound.getWidth())
                    imgBackgoundX = this.getWidth() - imgBackgound.getWidth();
      * Responsible for the drawing
      * @param g
     private void render(Graphics g)
          g.drawImage(imgBackgound, imgBackgoundX, imgBackgoundY, Graphics.TOP | Graphics.LEFT);
          this.flushGraphics();
}

You can also try to provide a greater Priority to your player thread so that it gains the CPU time when ever it needs it and don't harm the playback.
However a loop in a Thread and that to an infinite loop is one kind of very bad programming, 'cuz the loop eats up most of your CPU time which in turn adds up more delays of the execution of other tasks (just as in your case it is the playback). By witting codes bit efficiently and planning out the architectural execution flow of the app before start writing the code helps solve these kind of issues.
You can go through [this simple tutorial|http://oreilly.com/catalog/expjava/excerpt/index.html] about Basics of Java and Threads to know more about threads.
Regds,
SD
N.B. And yes there are more articles and tutorials available but much of them targets the Java SE / EE, but if you want to read them here is [another great one straight from SUN|http://java.sun.com/docs/books/tutorial/essential/concurrency/index.html] .
Edited by: find_suvro@SDN on 7 Nov, 2008 12:00 PM

J2ME problem with threads

Hi all,
I would like to ask you for a help. I need to write a small program at my university. I started to write a midlet which function would be to countdown time for sports activities. I woul like to start a new thread - the one that counts down - and at the same time make the main thread sleep. After the "countdown" thread finishes, the main thread wakes up and waits for user input. The problem is that when the "countdown" thread finishes his work, I've got Uncaught exception java/lang/NullPointerException. error and the midlet halts.
Below you can find the code
import java.lang.*;
import java.util.*;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
public class intervals extends MIDlet implements CommandListener
public Display ekran;
private SweepCanvas sweeper;
private Form rundy;
private TextField round0, round1, round2, round3, round4, round5, round6, round7, round8;
private long czas,x;
private Command exitCommand;
private Command addRound;
private Command delRound;
private Command start;
private TextField repeat;
private Form odliczanie;
private Alert ostrz;
Licznik thread;
String test;
StringItem test1;
int parz,i,j,k;
static int l;
int ilrund;
int ilpowt;
Item sec;
long sec1;
public intervals()
    rundy = new Form("Interwały sportowe");
    exitCommand = new Command("Wyjście", Command.EXIT, 2);
    addRound = new Command("Dodaj","Dodaj rundę", Command.ITEM,1);
    delRound = new Command("Usuń","Usuń ostatnią rundę", Command.ITEM,1);
    start = new Command("Start", Command.ITEM,1);
    odliczanie = new Form("Odliczanie");
    TextField dodaj(TextField kolej)
        kolej=new TextField("Podaj czas (s) rundy "+parz,null, 4, TextField.NUMERIC);//stworzenie nowej instancji do wybierania czasu trwania rundy
        if(rundy.size()==0)
            rundy.insert(rundy.size(),kolej);
            else
                rundy.insert(rundy.size()-1, kolej);
        return kolej;
    void odliczanie(TextField round)
        monitor m=new monitor();
        k=Integer.parseInt(round.getString());
        ekran.setCurrent(odliczanie);
        thread=new Licznik(k,odliczanie);
        thread.start();
        ekran.setCurrent(rundy);
public void startApp()// throws MIDletStateChangeException
    rundy.deleteAll();
    repeat = new TextField("Podaj ilość powtórzeń",null,1,TextField.NUMERIC);
    rundy.addCommand(addRound);
    rundy.addCommand(exitCommand);
    rundy.setCommandListener(this);
    Canvas obrazek = new MyCanvas();
    ekran = Display.getDisplay(this);
    ekran.setCurrent(obrazek);
    czas=System.currentTimeMillis();
    while (System.currentTimeMillis()<czas+1000)
        continue;
    ekran.setCurrent(rundy);
public void pauseApp()
public void destroyApp(boolean unconditional)
    notifyDestroyed();
public void commandAction(Command c, Displayable s)
    if (c == exitCommand)
        destroyApp(false);
        notifyDestroyed();
    else if(c==addRound)
        if(rundy.size()==0)//Sprawdzenie ilości elementów w celu poprawnego wyświetlania liczby rund w formie
            parz=1;
            else
            parz=rundy.size();
        switch(parz)
            case 1:
                round0=dodaj(round0);break;
            case 2:
                round1=dodaj(round1);break;
            case 3:
               round2= dodaj(round2);break;
            case 4:
                round3=dodaj(round3);break;
            case 5:
                round4=dodaj(round4);break;
            default:
                ostrz=new Alert("Uwaga","Maksymalna liczba rund wynosi 9", null, AlertType.INFO);
                ostrz.setTimeout(3000);
                ekran.setCurrent(ostrz);
        if(rundy.size()==1)
            rundy.append(repeat);
            rundy.addCommand(start);
        rundy.addCommand(delRound);
    else if(c==delRound)
        if(rundy.size()!=0)
            rundy.delete(rundy.size()-2);
            if (rundy.size()==1)
                rundy.deleteAll();
            if(rundy.size()==0)
                rundy.removeCommand(delRound);
                rundy.removeCommand(start);
    else if(c==start)
        ilrund=rundy.size()-1;
        if(this.repeat.size()>0)
            ilpowt=Integer.parseInt(this.repeat.getString());
        ekran = Display.getDisplay(this);
        for (i=1; i<=ilpowt;i++)
            odliczanie= new Form("Odliczanie");
             for (j=0;j<ilrund;j++)
                switch(j)
                     case 0:
                         odliczanie(round0);
                         break;
                     case 1:
                         odliczanie(round1);
                         break;
                     case 2:
                         odliczanie(round2);
                         break;
                     case 3:
                         odliczanie(round3);
                         break;
                     case 4:
                         odliczanie(round4);
                         break;
                     case 5:
                         odliczanie(round5);
                         break;
                     case 6:
                         odliczanie(round6);
                         break;
                     case 7:
                         odliczanie(round7);
                         break;
                     case 8:
                         odliczanie(round8);
                         break;
class Licznik extends Thread
    int czas1,k;
    Form forma;
    monitor m;
    public Licznik(int k,Form formap)
        czas1=k;
        forma=formap;
    public synchronized void run()
        while(czas1>0)
            forma.deleteAll();
            forma.append("Czas pozostały (s): "+czas1);
            try{Thread.sleep(1000);} catch(InterruptedException e){e.printStackTrace();}
            czas1--;
        if(czas1<=0)
            m.put();
    }and monitor class
public class monitor
boolean busy=false;
synchronized void get()
    if(!busy)
        try
            wait();
        }catch(InterruptedException e){e.printStackTrace();}
    notify();
synchronized void put()
    if(busy)
        try
        wait();
        }catch(InterruptedException e){e.printStackTrace();}
    busy=true;
    notify();
}Can anybody help me with this?

Groovemaker,
Your Licznik class has a member m of type monitor, which has not been instantiated (in other words is null) hence, when calling m.put() you get NullPointerException. Please also mind, that using Thread.sleep(1000) is not an accurate way of measuring time.
If I may, please use recommended for Java class naming conventions - some of your names use lower case, while other don't which is confusing to the reader.
Daniel

Problem with threads within applet

Hello,
I got an applet, inside this applet I have a singleton, inside this singleton I have a thread.
this thread is running in endless loop.
he is doing something and go to sleep on and on.
the problem is,
when I refresh my IE6 browser I see more than 1 thread.
for debug matter, I did the following things:
inside the thread, sysout every time he goes to sleep.
sysout in the singleton constructor.
sysout in the singleton destructor.
the output goes like this:
when refresh the page, the singleton constructor loading but not every refresh, sometimes I see the constructor output and sometimes I dont.
The thread inside the singleton is giving me the same output, sometime I see more than one thread at a time and sometimes I dont.
The destructor never works (no output there).
I don't understand what is going on.
someone can please shed some light?
thanks.
btw. I am working with JRE 1.1
this is very old and big applet and I can't convert it to something new.

Ooops. sorry!
I did.
     public void start() {
     public void stop() {
     public void destroy() {
          try {
               resetAll();
               Configuration.closeConnection();
               QuoteItem.closeConnection();
          } finally {
               try {
                    super.finalize();
               } catch (Throwable e) {
                    e.printStackTrace();
     }

Problem with Threads and a static variable

I have a problem with the code below. I am yet to make sure that I understand the problem. Correct me if I am wrong please.
Code functionality:
A timer calls SetState every second. It sets the state and sets boolean variable "changed" to true. Then notifies a main process thread to check if the state changed to send a message.
The problem as far I understand is:
Assume the timer Thread calls SetState twice before the main process Thread runs. As a result, "changed" is set to true twice. However, since the main process is blocked twice during the two calls to SetState, when it runs it would have the two SetState timer threads blocked on its synchronized body. It will pass the first one, send the message and set "changed" to false since it was true. Now, it will pass the second thread, but here is the problem, "changed" is already set to false. As a result, it won't send the message even though it is supposed to.
Would you please let me know if my understanding is correct? If so, what would you propose to resolve the problem? Should I call wait some other or should I notify in a different way?
Thanks,
B.D.
Code:
private static volatile boolean bChanged = false;
private static Thread objMainProcess;
   protected static void Init(){
        objMainProcess = new Thread() {
            public void run() {
                while( objMainProcess == Thread.currentThread() ) {
                   GetState();
        objMainProcess.setDaemon( true );
        objMainProcess.start();
    public static void initStatusTimer(){
        if(objTimer == null)
             objTimer = new javax.swing.Timer( 1000, new java.awt.event.ActionListener(){
                public void actionPerformed( java.awt.event.ActionEvent evt){
                          SetState();
    private static void SetState(){
        if( objMainProcess == null ) return;
        synchronized( objMainProcess ) {
            bChanged = true;
            try{
                objMainProcess.notify();
            }catch( IllegalMonitorStateException e ) {}
    private static boolean GetState() {
        if( objMainProcess == null ) return false;
        synchronized( objMainProcess ) {
            if( bChanged) {
                SendMessage();
                bChanged = false;
                return true;
            try {
                objMainProcess.wait();
            }catch( InterruptedException e ) {}
            return false;
    }

Thanks DrClap for your reply. Everything you said is right. It is not easy to make them alternate since SetState() could be called from different places where the state could be anything else but a status message. Like a GREETING message for example. It is a handshaking message but not a status message.
Again as you said, There is a reason I can't call sendMessage() inside setState().
The only way I was able to do it is by having a counter of the number of notifies that have been called. Every time notify() is called a counter is incremented. Now instead of just checking if "changed" flag is true, I also check if notify counter is greater than zero. If both true, I send the message. If "changed" flag is false, I check again if the notify counter is greater than zero, I send the message. This way it works, but it is kind of a patch than a good design fix. I am yet to find a good solution.
Thanks,
B.D.

Problem with threads running javaw

Hi,
Having a problem with multi thread programming using client server sockets. The program works find when starting the the application in a console using java muti.java , but when using javaw multi.java the program doesnt die and have to kill it in the task manager. The program doesnt display any of my gui error messages either when the server disconnect the client. all works find in a console. any advice on this as I havent been able to understand why this is happening? any comment would be appreciated.
troy.

troy,
Try and post a minimum code sample of your app which
does not work.
When using javaw, make sure you redirect the standard
error and standard output streams to file.
Graeme.Hi Graeme,
I dont understand what you mean by redirection to file? some of my code below.
The code works fine under a console, code is supposed to exit when the client (the other server )disconnects. the problem is that but the clientworker side of the code still works. which under console it doesnt.
public class Server{
ServerSocket aServerSocket;
Socket dianosticsSocket;
Socket nPortExpress;
ClientListener aClientListener;
LinkedList queue = new LinkedList();
int port = 0;
int clientPort = 0;
String clientName = null;
boolean serverAlive = true;
* Server constructor generates a server
* Socket and then starts a client threads.
* @param aPort      socket port of local machine.
public Server(int aPort, String aClientName, int aClientPort){
port = aPort;
clientName = aClientName;
clientPort = aClientPort;
try{
// create a new thread
aServerSocket = new ServerSocket(port) ;
// connect to the nPortExpress
aClientListener = new ClientListener(InetAddress.getByName(clientName), clientPort, queue,this);
// aClientListener.setDaemon(true);
aClientListener.start();
// start a dianostic port
DiagnosticsServer aDiagnosticsServer = new DiagnosticsServer(port,queue,aClientListener);
// System.out.println("Server is running on port " + port + "...");
// System.out.println("Connect to nPort");
catch(Exception e)
// System.out.println("ERROR: Server port " + port + " not available");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Server port " + port + " not available", JOptionPane.ERROR_MESSAGE);
serverAlive = false;
System.exit(1);
while(serverAlive&&aClientListener.hostSocket.isConnected()){
try{
// connect the client
Socket aClient = aServerSocket.accept();
//System.out.println("open client connection");
//System.out.println("client local: "+ aClient.getLocalAddress().toString());
// System.out.println("client localport: "+ aClient.getLocalPort());
// System.out.println("client : "+ aClient.getInetAddress().toString());
// System.out.println("client port: "+ aClient.getLocalPort());
// make a new client thread
ClientWorker clientThread = new ClientWorker(aClient, queue, aClientListener, false);
// start thread
clientThread.start();
catch(Exception e)
//System.out.println("ERROR: Client connection failure");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Client connection failure", JOptionPane.ERROR_MESSAGE);
}// end while
} // end constructor Server
void serverExit(){
     JOptionPane.showMessageDialog(null, "Server ","ERROR: nPort Failure", JOptionPane.ERROR_MESSAGE);
     System.exit(1);
}// end class Server
*** connect to another server
public class ClientListener extends Thread{
InetAddress hostName;
int hostPort;
Socket hostSocket;
BufferedReader in;
PrintWriter out;
boolean loggedIn;
LinkedList queue;      // reference to Server queue
Server serverRef; // reference to main server
* ClientListener connects to the host server.
* @param aHostName is the name of the host eg server name or IP address.
* @param aHostPort is a port number of the host.
* @param aLoginName is the users login name.
public ClientListener(InetAddress aHostName, int aHostPort,LinkedList aQueue,Server aServer)      // reference to Server queue)
hostName = aHostName;
hostPort = aHostPort;
queue = aQueue;
serverRef = aServer;
// connect to the server
try{
hostSocket = new Socket(hostName, hostPort);
catch(IOException e){
//System.out.println("ERROR: Connection Host Failed");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Connection to nPort Failed", JOptionPane.ERROR_MESSAGE);
System.exit(0);
} // end constructor ClientListener
** multi client connection server
ClientWorker(Socket aSocket,LinkedList aQueue, ClientListener aClientListener, boolean diagnostics){
queue = aQueue;
addToQueue(this);
client = aSocket;
clientRef = aClientListener;
aDiagnostic = diagnostics;
} // end constructor ClientWorker
* run method is the main loop of the server program
* in change of handle new client connection as well
* as handle all messages and errors.
public void run(){
boolean alive = true;
String aSubString = "";
in = null;
out = null;
loginName = "";
loggedIn = false;
while (alive && client.isConnected()&& clientRef.hostSocket.isConnected()){
try{
in = new BufferedReader(new InputStreamReader(client.getInputStream()));
out = new PrintWriter(new OutputStreamWriter(client.getOutputStream()));
if(aDiagnostic){
out.println("WELCOME to diagnostics");
broadCastDia("Connect : diagnostics "+client.getInetAddress().toString());
out.flush();
else {
out.println("WELCOME to Troy's Server");
broadCastDia("Connect : client "+client.getInetAddress().toString());
     out.flush();
String line;
while(((line = in.readLine())!= null)){
StringTokenizer aStringToken = new StringTokenizer(line, " ");
if(!aDiagnostic){
broadCastDia(line);
clientRef.sendMessage(line); // send mesage out to netExpress
out.println(line);
out.flush();
else{
if(line.equals("GETIPS"))
getIPs();
else{
clientRef.sendMessage(line); // send mesage out to netExpress
out.println(line);
out.flush();
} // end while
catch(Exception e){
// System.out.println("ERROR:Client Connection reset");
                         JOptionPane.showMessageDialog(null, (e.toString()),"ERROR:Client Connection reset", JOptionPane.ERROR_MESSAGE);
try{
if(aDiagnostic){
broadCastDia("Disconnect : diagnostics "+client.getInetAddress().toString());
out.flush();
else {
broadCastDia("Disconnect : client "+client.getInetAddress().toString());
     out.flush();
// close the buffers and connection;
in.close();
out.close();
client.close();
// System.out.println("out");
// remove from list
removeThreadQueue(this);
alive = false;
catch(Exception e){
// System.out.println("ERROR: Client Connection reset failure");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Client Connection reset failure", JOptionPane.ERROR_MESSAGE);
}// end while
} // end method run
* method run - Generates io stream for communicating with the server and
* starts the client gui. Run also parses the input commands from the server.
public void run(){
boolean alive = true;
try{
// begin to life the gui
// aGuiClient = new ClientGui(hostName.getHostName(), hostPort, loginName, this);
// aGuiClient.show();
in = new BufferedReader(new InputStreamReader(hostSocket.getInputStream()));
out = new PrintWriter(new OutputStreamWriter(hostSocket.getOutputStream()));
while (alive && hostSocket.isConnected()){
String line;
while(((line = in.readLine())!= null)){
System.out.println(line);
broadCast(line);
} // end while
} // end while
catch(Exception e){
//     System.out.println("ERRORa Connection to host reset");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Connection to nPort reset", JOptionPane.ERROR_MESSAGE);
try{
hostSocket.close();
     }catch(Exception a){
     JOptionPane.showMessageDialog(null, (a.toString()),"ERROR: Exception", JOptionPane.ERROR_MESSAGE);
alive = false;
System.exit(1);
} // end method run

Problem with Threads and "plase wait..."-Window

Hi everyone,
I have a problem that I'm not able to solve in any way... I have a time-consuming task (a file decryption) which I execute in a separate thread; I've used the SwingWorker class, like suggested by sun-tutorial, and it works right. The problem is that I have to wait that the decryption have finished before continuing with program-execution. Therefore I would like to display a "please wait"-window while the task runs. I've tryed all the possible ways I know but the problem is always the same: the waitWindow is displayed empty, the bounds are painted but the contents no; it's only painted when the decrypt-task has finished. Please help me, I have no more resources....
decrypt-file code:
public class DecryptFile {
private String cryptedFileNameAndPath;
private ByteArrayInputStream resultStream = null;
// need for progress
private int lengthOfTask;
private int current = -1;
private String statMessage;
public DecryptFile(String encZipFileNameAndPath) {
    cryptedFileNameAndPath = encZipFileNameAndPath;
    //Compute length of task...
    // 0 for indeterminate
    lengthOfTask = 0;
public ByteArrayInputStream getDecryptedInputStream() {
    return this.resultStream;
   * Called from ProgressBarDemo to start the task.
public void go() {
    current = -1;
    final SwingWorker worker = new SwingWorker() {
      public Object construct() {
        return new ActualTask();
    worker.start();
   * Called from ProgressBarDemo to find out how much work needs
   * to be done.
public int getLengthOfTask() {
    return lengthOfTask;
   * Called from ProgressBarDemo to find out how much has been done.
public int getCurrent() {
    return current;
public void stop() {
    current = lengthOfTask;
   * Called from ProgressBarDemo to find out if the task has completed.
public boolean done() {
    if (current >= lengthOfTask)
      return true;
    else
      return false;
public String getMessage() {
    return statMessage;
   * The actual long running task. This runs in a SwingWorker thread.
class ActualTask {
    ActualTask () {
      current = -1;
      statMessage = "";
      resultStream = AIUtil.getInputStreamFromEncZip(cryptedFileNameAndPath); //here the decryption happens
      current = 0;
      statMessage = "";
}The code that calls decryption and displays waitWindow
      final WaitSplash wS = new WaitSplash("Please wait...");
      final DecryptFile cryptedTemplate = new DecryptFile (this.templateFile);
      cryptedTemplate.go();
      while (! cryptedTemplate.done()) {
        try {
          wait();
        } catch (Exception e) { }
      this.templateInputStream = cryptedTemplate.getDecryptedInputStream();
      wS.close();Thanks, thanks, thanks in advance!
Edoardo

Maybe you can try setting the priority of the long-running thread to be lower? so that the UI will be more responsive...

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