How to apply weblogic patch in R12.2

How to apply weblogic patch in R12.2:
============================

1. Copy the patches and move to the below location :

$FMW_Home/utils/bsu/cache_dir


2. Unzip patches in above location. When you unzip the patch you will get the jar file named with 4 character.
Ex : B47X. Use these jar files while applying patch.

3. Command to apply weblogic patch in R12.2 :

bash-3.2$ bsu.sh -install -patch_download_dir=$FMW_Home/utils/bsu/cache_dir -patchlist=B47X -prod_dir=$FMW_HOME/wlserver_10.3
Checking for conflicts................
Conflict(s) detected - resolve conflict condition and execute patch installation again
Conflict condition details follow:
Patch B47X is mutually exclusive and cannot coexist with patch(es): YIJF,LL4G,D33T,VFS8,Y5AP


4. Command to rollback the conflicts :

bsu.sh -remove -patchlist=YIJF -prod_dir=$FMW_HOME/wlserver_10.3
bsu.sh -remove -patchlist=LL4G -prod_dir=$FMW_HOME/wlserver_10.3
bsu.sh -remove -patchlist=D33T -prod_dir=$FMW_HOME/wlserver_10.3
bsu.sh -remove -patchlist=VFS8 -prod_dir=$FMW_HOME/wlserver_10.3
bsu.sh -remove -patchlist=Y5AP -prod_dir=$FMW_HOME/wlserver_10.3


Regular Errors:
===============

Error-1 :
=========

bash-3.2$ bsu.sh -install -patch_download_dir=$FMW_Home/utils/bsu/cache_dir -patchlist=B47X -prod_dir=$FMW_HOME/wlserver_10.3
Exception in thread "main" Exception in thread "Thread-0" java.lang.OutOfMemoryError: Java heap space
        at org.apache.xmlbeans.impl.store.Cur.createElementXobj(Cur.java:257)


Error-2:
=========

bash-3.2$ bsu.sh -install -patch_download_dir=$FMW_Home/utils/bsu/cache_dir -patchlist=B47X -prod_dir=$FMW_HOME/wlserver_10.3
Checking for conflicts...........Exception in thread "main" java.lang.OutOfMemoryError: GC overhead limit exceeded
        at java.util.Arrays.copyOf(Arrays.java:2367)


Fix :
======

Update MEM_ARGS parameter in bsu.sh file after taking backup under $FMW_HOME/utils/bsu/
#!/bin/sh

JAVA_HOME="/a01/appsclone/CLONE/fs2/EBSapps/comn/util/jdk"

MEM_ARGS="-Xms2048m -Xmx2048m -XX:+UseParallelGC"

"$JAVA_HOME/bin/java" ${MEM_ARGS} -jar patch-client.jar $*