How to debug multi server deployed application ?
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 Q1. How to debug multi server deployed application ?Debugging
Ans. Choose the server from the list of defined servers under J2EE Server.
Choose the project to debug.
Click Apply to save changes.
Click Debug to start the server and run the application.

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 in the following log4j config file, How should we change the file name and format


<Configuration status="DEBUG">
<Appenders>
<RollingFile name="File" fileName="logs/xyz.log" filePattern="logs/xyz-%d{MM-dd-yyyy}.log.gz">
      <TimeBasedTriggeringPolicy />
   </RollingFile>
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<AppenderRef ref="File" />
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 In the following log4j config, What if we don't need rolling logs

<Configuration status="DEBUG">
<Appenders>
<RollingFile name="File" fileName="logs/xyz.log" filePattern="logs/xyz-%d{MM-dd-yyyy}.log.gz">
      <TimeBasedTriggeringPolicy />
   </RollingFile>
</Appenders>
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<AppenderRef ref="File" />
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WARN, DEBUG,INFO, ERROR
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 What do you make out of this error

org.hibernate.exception.ConstraintViolationException: could not insert: [<Entity>]
Caused by: java.sql.SQLIntegrityConstraintViolationException: ORA-00001: unique constraint (<Constraint Name>) violated

and how would you go about debugging it ?
 Explain debugging



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