New HOWL version in Geronimo

Hello!

Now version of HOWL in Geronimo is 0.1.11. What do you think about its replacing with new one 1.0.0?

Some problems are fixed in new HOWL version. One of them is of importance for correct Geronimo startup:

class org.objectweb.howl.log.BlockLogBuffer from howl-logger-0.1.11.jar throws

org.objectweb.howl.log.InvalidLogBufferException over check-up of log files availability

using HOWL classes when we start Geronimo by command: java –jar bin/server.jar.

Because it checks files' validity if they exist. One of verified parameters is the file content control sum.

One value of this parameter is read from file header and another is calculated by function java.nio.ByteBuffer.hashCode().

If Geronimo is launched on one JDK at first and then - on another, class BlockLogBuffer can throw

exception because algorithms of function hashCode() can be different and values of the checksum don't

equal accordingly.

This is bug in HOWL classes

In new HOWL version 1.0.0 it is fixed by introduction of new boolean parameter. When the parameter

equals 'false', control sum is calculated using hashCode() function. Otherwise the calculation is performed

using ADLER-32 algorithm. If the jar with new HOWL version is added to maven repository and Geronimo

sources are patched by using new parameter the exception won’t appear.

This is not a critical bug; however, I think it is better to use HOWL 1.0.0 for correct Geronimo

launching on various JDK.

Any ideas?

Thanks, Nellya Udovichenko,

Intel Middleware Products Division

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