What may be reason for tomcat does not release connections after using?
Herem is my config
<Resource name="jdbc/DataSource" auth="Container"
type="javax.sql.DataSource" username="))" password="))"
driverClassName="oracle.jdbc.driver.OracleDriver"
url="))"
factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
initialSize="55"
maxActive="55" maxIdle="55" maxWait="15000"
testWhileIdle="true"
testOnBorrow="true"
testOnReturn="false"
validationQuery="SELECT 1 FROM DUAL"
validationInterval="20000"
timeBetweenEvictionRunsMillis="30000"
removeAbandoned="true"
removeAbandonedTimeout="60"
/>