title: is it possible to avoid error information in text.INFO file of log4j properties?
body: <p>I am using log4j properties to capture the logs.i wants to remove error info from INFO file.</p>
  
  <p>**</p>
  
  <blockquote>
    <p>INFO</p>
  </blockquote>
  
  <p>** file is below:</p>
  
  <p>5:39:02,068  INFO BluSyncLauncher:156 - Application started</p>
  
  <p>05:39:02,080  INFO BluSyncLauncher:586 - Loading UI
  05:39:02,263  INFO BackupCrawlDAOImpl:470 - sqlExeception in CREATE_ACTIVITY_TABLEjava.sql.SQLException: [SQLITE_ERROR] SQL error or missing database (duplicate column name: IsFolder)</p>
  
  <p>05:39:02,264 **</p>
  
  <blockquote>
    <p>ERROR</p>
  </blockquote>
  
  <p>** BackupActivityHistoryDAOImpl:706 - sqlExeception in CREATE_ACTIVITY_TABLEjava.sql.SQLException: [SQLITE_ERROR] SQL error or missing database (duplicate column name: restartid)
  05:39:03,803  INFO BluSyncLauncher:533 - Started crawl (backup)
  05:39:03,827  INFO BluSyncLauncher:543 - Starting Activity Timer
  05:39:03,860  INFO BluSyncLauncher:557 - Load SystemTrayUI</p>
  
  <p>05:39:10,612 **</p>
  
  <blockquote>
    <p>ERROR</p>
  </blockquote>
  
  <p>** BackupPolicyDAOImpl:280 - SQLException while inserting backup policy details
  java.sql.SQLException: [SQLITE_CONSTRAINT]  Abort due to constraint violation (BACKUP_POLICY.policyGroupName may not be NULL)
      at org.sqlite.DB.newSQLException(DB.java:383)
      at org.sqlite.DB.newSQLException(DB.java:387)
      at org.sqlite.DB.execute(DB.java:342)
      at org.sqlite.PrepStmt.execute(PrepStmt.java:65)
      at com.parablu.epa.common.dao.BackupPolicyDAOImpl.insertBackupPolicyDetailsToTable(BackupPolicyDAOImpl.java:273)
      at com.parablu.epa.common.service.settings.PolicyManagementServerHelper.createGroupPolicyAndChildDetails(PolicyManagementServerHelper.java:306)
      at com.parablu.epa.common.service.settings.PolicyManagementServerHelper.loadBackupPolicyElement(PolicyManagementServerHelper.java:245)
      at com.parablu.epa.service.backup.LinuxCheckBackupPolicy.checkGroupPolicy(LinuxCheckBackupPolicy.java:140)
      at com.parablu.epa.service.alarm.LinuxPolicyRefreshHelper$1.run(LinuxPolicyRefreshHelper.java:55)
      at java.util.TimerThread.mainLoop(Timer.java:555)
      at java.util.TimerThread.run(Timer.java:505)</p>