JAVA Detection problem

Question

Hi
I am using ECC 6.0. My JAVA Server not getting started. In MMC Its not showing any of JAVA processes to start.
Following is the contents of DEV_JCONTROL file. Can any body help me to resolve this.
Thanks in advance
trc file: "H:\usr\sap\EC6\DVEBMGS00\work\dev_jcontrol", trc level: 1, release: "700"
node name   : jcontrol
pid         : 7184
system name : EC6
system nr.  : 00
started at  : Mon Oct 13 10:59:44 2008
arguments       :
       arg[00] : H:\usr\sap\EC6\DVEBMGS00\exe\jcontrol.EXE
       arg[01] : pf=H:\usr\sap\EC6\SYS\profile\EC6_DVEBMGS00_sapecc6
       arg[02] : -DSAPSTART=1
       arg[03] : -DCONNECT_PORT=64989
       arg[04] : -DSAPSYSTEM=00
       arg[05] : -DSAPSYSTEMNAME=EC6
       arg[06] : -DSAPMYNAME=sapecc6_EC6_00
       arg[07] : -DSAPPROFILE=H:\usr\sap\EC6\SYS\profile\EC6_DVEBMGS00_sapecc6
       arg[08] : -DFRFC_FALLBACK=ON
       arg[09] : -DFRFC_FALLBACK_HOST=localhost
[Thr 3792] Mon Oct 13 10:59:44 2008
[Thr 3792] *** WARNING => INFO: Unknown property [instance.box.number=EC6DVEBMGS00sapecc6] [jstartxx.c   841]
[Thr 3792] *** WARNING => INFO: Unknown property [instance.en.host=sapecc6] [jstartxx.c   841]
[Thr 3792] *** WARNING => INFO: Unknown property [instance.en.port=3203] [jstartxx.c   841]
[Thr 3792] *** WARNING => INFO: Unknown property [instance.system.id=0] [jstartxx.c   841]
JStartupReadInstanceProperties: read instance properties [H:\usr\sap\EC6\DVEBMGS00\j2ee\cluster\instance.properties;H:\usr\sap\EC6\DVEBMGS00\SDM\program\config\sdm_jstartup.properties]
-> ms host    : sapecc6
-> ms port    : 3903
-> OS libs    : H:\usr\sap\EC6\DVEBMGS00\j2ee\os_libs
-> Admin URL  :
-> run mode   : normal
-> run action : NONE
-> enabled    : yes
Used property files
-> files [00] : H:\usr\sap\EC6\DVEBMGS00\j2ee\cluster\instance.properties
-> files [01] : H:\usr\sap\EC6\DVEBMGS00\SDM\program\config\sdm_jstartup.properties
Instance properties
-> ms host    : sapecc6
-> ms port    : 3903
-> os libs    : H:\usr\sap\EC6\DVEBMGS00\j2ee\os_libs
-> admin URL  :
-> run mode   : normal
-> run action : NONE
-> enabled    : yes
Bootstrap nodes
-> [00] bootstrap            : H:\usr\sap\EC6\DVEBMGS00\j2ee\cluster\instance.properties
-> [01] bootstrap_ID4591900  : H:\usr\sap\EC6\DVEBMGS00\j2ee\cluster\instance.properties
-> [02] bootstrap_ID4591950  : H:\usr\sap\EC6\DVEBMGS00\j2ee\cluster\instance.properties
Worker nodes
-> [00] ID4591900            : H:\usr\sap\EC6\DVEBMGS00\j2ee\cluster\instance.properties
-> [01] ID4591950            : H:\usr\sap\EC6\DVEBMGS00\j2ee\cluster\instance.properties
-> [02] sdm                  : H:\usr\sap\EC6\DVEBMGS00\SDM\program\config\sdm_jstartup.properties
[Thr 3792] JControlExecuteBootstrap: execute bootstrap process [bootstrap]
[Thr 6656] JControlDPMessageProxy: Thread 6656 started as handler thread for R/3 dispatcher messages.
[Thr 3792] Mon Oct 13 10:59:45 2008
[Thr 3792] *** ERROR => JStartupIGetJDKInfo: Cannot find Java class file [./JdkDetection_7184.class]. [jstartxxi.c  1017]
[Thr 3792] *** ERROR => can't get JDK information (rc = -1) [jstartxxi.c  1256]
[Thr 3792] **********************************************************************
ERROR => JDK Detection failed.
Please see SAP Note 943602 , section 'JDK detection issues'
for additional information and trouble shooting.
[Thr 3792] *** ERROR => node [bootstrap] not found [jstartxx.c   1593]
[Thr 3792] JControlExecuteBootstrap: error executing bootstrap node [bootstrap] (rc = -18)
[Thr 3792] JControlCloseProgram: started (exitcode = -18)
[Thr 3792] JControlCloseProgram: good bye... (exitcode = -18)

Answer 1

Hi,
During Java startup
1. JControl is started.
2.  JControl starts the Java instance bootstrap process.
3.The Java instance bootstrap process reads the instance
description from the Java schema of the database.
4. The Java instance bootstrap process creates a file called
instance.properties, containing the instance description, at
operating system level.
5. JControl imports the instance description from the file system.
As per below details provided in ur earlier update:-
Thr 3792 JControlExecuteBootstrap: execute bootstrap process
bootstrap Thr 6656 JControlDPMessageProxy: Thread 6656
started as handler thread for R/3 dispatcher messages.
Thr 3792 Mon Oct 13 10:59:45 2008
Thr 3792 *** ERROR => JStartupIGetJDKInfo: Cannot find Java
class file http://./JdkDetection_7184.class. http://jstartxxi.c 1017
Thr 3792 *** ERROR => can't get JDK information (rc = -1) http://jstartxxi.c 1256
Thr 3792 **********************************************************************
When it is triggering the bootstrap process to reads the
instance description from the Java schema and same bootstrap
process I hope is failing to create a file called
instance.properties, containing the instance description may be
due to less disk space as you said.
I think this is the reason why the WAS Java is not coming up.
I hope this will help to analyse the problem.
Rgds
Radhakrishna  D S