Weblogic的几个Issue的解决方法和一些Linuxx命令

aini

　　Issue 1：(Weblogic 8.1_SP5)
　　weblogic.utils.AssertionError: ***** ASSERTION FAILED *****[ invalid assignment from 'Object' to 'Object' ]
　　Solution:
　　Use the "-Xint" option to the JVM. This appears to be an issue with the optimization in the Sun JVM 1.4.x versions.

    Alternatively create a .hotspot_compiler file in the working directory of your domain with the content below:

    exclude weblogic/utils/classfile/expr/LocalVariableExpression codeAssign
    exclude weblogic/utils/classfile/expr/AssignStatement <init>

    There is another option and that is to try JRockit JVM
　　Issue 2:(Weblogic 10.3)
　　<Server subsystem failed. Reason: java.lang.NumberFormatException: null>
　　Solution:
　　Remove: YOUR_DOMAIN/servers/YOUR_ADMIN_SERVER/data/ldap/conf/replicas.prop
　　Issue 3:(Weblogic 8.1_SP5)
　　Security exception
　　Solution:
　　1) java -cp /opt/bea/8.1_SP5/weblogic81/server/lib/weblogic.jar weblogic.security.utils.AdminAccount weblogic weblogic  ./
　　2) cd YOUR_DOMAIN/YOUR_ADMIN_SERVER/ldap
　　rm DefaultAuthenticatormyrealmInit.initialized
　　3) cp ../../DefaultAuthenticatorInit.ldift .
　　4) rm ../../boot.properties
　　5) cd ../..
　　6) add -Dweblogic.management.username=weblogic -Dweblogic.management.password=weblogic to your start scripts
　　Skill 1:
　　Find files in a jar package:
　　for i in `ls`; do jar tf $i | grep "KEY_WORD" && echo $i; done
　　Skill 2:
　　Clean old logs:
　　find . -name "*.log" -mtime +1 -exec rm {} \;
　　find . -name "*.log" -mmin +30 -exec rm {} \;
　　Skill 3:
　　Compress and uncompress files:
　　Compress: tar zcvf FileName.tar.gz DirName
　　Uncompress: tar zxvf FileName.tar.gz
　　Lookup: tar ztvf FileName.tar.gz
　　Skill 4:
　　Retrieve files from rpm package without installing it.
　　rpm2cpio foo.rpm | cpio -idmv
　　rpm2cpio changes rpm package into cpio format
　　Use cpio to retrieve file:
　　-i retrieve file
　　-d create directory structure according to rpm orginal file structure
　　-m remain files' update time
　　-v  show processed file list