My ISV has one bug and could not provide standalone test case.

the program exports data to database, it works fine with jdk1.4.1_06
but fails with jdk1.4.2_02 , 1.4.2_04, 1.4.2_05.
I assume the problem is related to libnio.so , when i swap it with jdk1.4.1_06's
libnio.so , the program willnot fail(no Exception thrown).
Below is error message during exception occuring

5.07.04 14:33 com.sap.inst.jload.Jload logStackTrace
SEVERE: java.io.IOException: Not enough space
        at java.nio.MappedByteBuffer.force0(Native Method)
        at java.nio.MappedByteBuffer.force(MappedByteBuffer.java:138)
        at com.sap.inst.jload.io.DataFile.putEntry(DataFile.java:287)
        at com.sap.inst.jload.db.DBTable.unload(DBTable.java:190)
        at com.sap.inst.jload.Jload.dbExport(Jload.java:172)
        at com.sap.inst.jload.Jload.executeJob(Jload.java:383)
        at com.sap.inst.jload.Jload.main(Jload.java:541)

It could not be no enough space problem. since it works fine with jdk1.4.1_06
and fails on jdk1.4.2x

I provide a test landscape. to use this test landscape please follow below
steps

You can telnet suncc19 (129.157.142.19) with your sun ID
Then from suncc19, you can telnet 172.16.8.156
Login lroot (root user)
Pass sap

cd /install/unix_pack
Run ./testrun

The file /install/unix_pack/testrun is a script. You could switch jdk version here

#setenv JAVA_HOME /usr/j2sdk1.4.2_04 //this is jdk1.4.2_04
setenv JAVA_HOME /usr/j2se // this is jdk1.4.1_06

If test go through no exception happens, you have to stop program by contral + c
Then check result at jload.log

If test fails, you will see vm exit. You could check result in jload.log

Test will pass with jdk1.4.1_06
, will fail with jdk1.4.2x



Ps: if you need reboot machine
Switch to su - sunadm
Then tyep stopsap all
Wait until sap system stops completely
Then you could reboot machine

Blew oupput is result when i type command df -k before Exception occurs on
test landscape machine

/dev/dsk/c0t0d0s0 4129290 1928960 2159038 48% /
/proc 0 0 0 0% /proc
mnttab 0 0 0 0% /etc/mnttab
fd 0 0 0 0% /dev/fd
swap 4061256 104 4061152 1% /var/run
swap 4065416 4264 4061152 1% /tmp
/dev/md/dsk/d10 63566161 35139049 27791451 56% /data
###@###.### 10/15/04 21:30 GMT
###@###.### 10/15/04 21:31 GMT