#11 Error while strating asemon process

[Anonymous]

Hello Jena-Paul,
I've this message when start the asemon process. Could you please help us to resolve the issue:

Exception in thread "main" java.lang.UnsupportedClassVersionError: asemon_logger/Asemon_logger : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:281)
at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: asemon_logger/Asemon_logger. Program will exit.

[Anonymous]

To complete my request Asemon version is the last AsemonV3_02 replacing the old AsemonV2_7_18.

[Jean-Paul Martin]

Hi , what do you have in your CLASSPATH before starting asemon ? Did you notice that the asemon jar file is now named "asemon_logger_V3.jar" (in the "dist" dir)
So, you may just have to change your start file

[Anonymous]

Hi,
Thank you for your write back. As you can see my CLASSPATH seems to be ok. The error still there.

asemon_logger.sh -c ~/tools/asemon/conf/Asemon_Config_XXXX.xml
+ pwd
+ export ASEMON_LOGGER_HOME=/home/sybase/tools/asemon/AsemonV3_02
+ export JAVA_HOME=/home/sybase/tools/asemon/AsemonV3_02/../jre1.6.0_21
+ export JCONNECT_HOME=/home/sybase/tools/asemon/AsemonV3_02/jConnect-7_0
+ export PATH=/home/sybase/tools/asemon/AsemonV3_02/../jre1.6.0_21/bin:/usr/sybase/local/XXXX/distrib/ASE_157SP136/ASE-15_0/jobscheduler/bin:/usr/sybase/local/XXXX/distrib/ASE_157SP136/ASE-15_0/bin:/usr/sybase/local/XXXX/distrib/ASE_157SP136/ASE-15_0/install:/usr/sybase/local/XXXX/distrib/ASE_157SP136/SCC-3_3/bin:/usr/sybase/local/XXXX/distrib/ASE_157SP136/DBISQL/bin:/usr/sybase/local/XXXX/distrib/ASE_157SP136/OCS-15_0/bin:.:/syb_server/share/bin:/usr/bin:/usr/sbin:/usr/ucb:/etc:/usr/local/bin:/home/sybase/bin
+ export CLASSPATH=/home/sybase/tools/asemon/AsemonV3_02/dist/Asemon_logger_V3.jar:/home/sybase/tools/asemon/AsemonV3_02/lib/jdom.jar:/home/sybase/tools/asemon/AsemonV3_02/lib/xerces.jar:/home/sybase/tools/asemon/AsemonV3_02/lib/java-getopt-1.0.9.jar:/home/sybase/tools/asemon/AsemonV3_02/jConnect-7_0/classes/jconn4.jar:/home/sybase/tools/asemon/AsemonV3_02/jConnect-7_0/classes/jTDS3.jar
+ java -Xmx512m -DSYBASE=/usr/sybase/local/XXXX/distrib/ASE_157SP136 -DASEMON_LOGGER_HOME=/home/sybase/tools/asemon/AsemonV3_02 -Dsun.net.inetaddr.ttl=0 asemon_logger/Asemon_logger -c /home/sybase/tools/asemon/conf/Asemon_Config_XXXX.xml
Exception in thread "main" java.lang.UnsupportedClassVersionError: asemon_logger/Asemon_logger : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:281)
at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: asemon_logger/Asemon_logger. Program will exit.

[Jean-Paul Martin]

oops, I just did a test with JRE1.6 (16.0.45) and get the same error !!!!!

In fact I no longer compile and test with 1.6 but 1.7. Java 1.7 is very recommended for security.

Can you install JRE 1.7 and test ?

[Anonymous]

It's ok, working fine with JRE 1.7.
Thank you