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log4j:WARN No appenders could be found for logger (org.apache.commons.httpclient.params.DefaultHttpParams).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Workaround 1
Change name of config file. e.g.

cp client/target/cloud-client-ui-4.2.0-SNAPSHOT/WEB-INF/classes/log4j{,-cloud,}.xml

2) Problem: Server will not start and throws following exception

java.lang.OutOfMemoryError: Java heap space

Workaround 2

Set CATALINA_BASE  e.g. 

export CATALINA_BASE=X:/path/to/dir/contains/conf/log4j-cloud.xml

       X: is the windows disk label  ,  PropertiesUtil will find : CATALINA_HOME or  CATALINA_BASE .

2) Problem: Server will not start and throws following exception

java.lang.OutOfMemoryError: Java heap space

Workaround:
This problem can Workaround:
This problem can arise when launching the server with too small of a heap. If you are launching using Maven, use MAVEN_OPTS to increase the stack size.

...

-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms384m
-Xmx2048m

7)  Problem : can not find sudo command

 Workaround , create a bash file named as  /bin/sudo with script content :

#!/usr/bin/bash
cygstart --action=runas "$@"

    then chmod +x /bin/sudo