title: com.mchange.v2.resourcepool.basicresourcepool$acquiretask acquisition attempt failed port number is not valid
body: <pre><code>WARN (BasicResourcePool.java:1841) - com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@5ccb71f5 -- 
      Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, 
      we failed to succeed more than the maximum number of allowed acquisition attempts (30).
  Last acquisition attempt exception:
  com.microsoft.sqlserver.jdbc.SQLServerException: The port number 49373/siya_hcm is not valid.
          at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:170)
          at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:580)
          at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:841)
          at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:134)
          at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)
          at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)
          at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)
          at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
          at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
          at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
          at com.mchange.v2.async.ThreadPerTaskAsynchronousRunner$TaskThread.run(ThreadPerTaskAsynchronousRunner.java:255)
  28.06.2015 15:17:36 DEBUG (BasicResourcePool.java:422) - decremented pending_acquires: 1
  28.06.2015 15:17:36 DEBUG (BasicResourcePool.java:1831) - An exception occurredwhile acquiring a poolable resource. Will retry.
  com.microsoft.sqlserver.jdbc.SQLServerException: The port number 49373/siya_hcm is not valid.
          at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:170)
          at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:580)
          at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:841)
          at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:134)
          at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)
          at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)
          at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)
          at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
          at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
          at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
          at com.mchange.v2.async.ThreadPerTaskAsynchronousRunner$TaskThread.run(ThreadPerTaskAsynchronousRunner.java:255)
  28.06.2015 15:17:36  WARN (BasicResourcePool.java:1841) - com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@31dddcce -- Acquisition Attempt Failed!!! Cl
  earing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30).
  Last acquisition attempt exception:
  com.microsoft.sqlserver.jdbc.SQLServerException: The port number 49373/siya_hcm is not valid.
          at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:170)
          at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:580)
          at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:841)
          at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:134)
          at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)
          at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)
          at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)
          at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
          at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
          at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
          at com.mchange.v2.async.ThreadPerTaskAsynchronousRunner$TaskThread.run(ThreadPerTaskAsynchronousRunner.java:255)
  28.06.2015 15:17:36 DEBUG (BasicResourcePool.java:422) - decremented pending_acquires: 0
  </code></pre>
  
  <p>I am using spring hibernate integrated framework . </p>
  
  <p>Following is my applicationContext.xml :-</p>
  
  <pre><code>&lt;bean id="DataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
      destroy-method="close"&gt;
      &lt;property name="driverClass" value="com.microsoft.sqlserver.jdbc.SQLServerDriver" /&gt;
      &lt;property name="jdbcUrl" value="jdbc:sqlserver://localhost:49373/siya_hcm" /&gt;
      &lt;property name="user" value="sa" /&gt;
      &lt;property name="password" value="test@12345" /&gt;
      &lt;property name="maxPoolSize" value="10" /&gt;
      &lt;property name="maxStatements" value="0" /&gt;
      &lt;property name="minPoolSize" value="5" /&gt;
  &lt;/bean&gt;
  </code></pre>
  
  <p>I am using sql server 2008.
  I couldn't understand why this warning comes?
  I have run other projects with the same configuration with other databases like mysql etc. But here, what is the problem?</p>