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From János Löbb <janos.l...@yale.edu>
Subject Connection has been abanded
Date Wed, 30 Nov 2011 21:15:56 GMT
Hi,

IT  is  Mac OSX 10.6.8  
java -version
java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02-279-10M3065)
Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01-279, mixed mode)
tomcat is 7.0.21
database is Sybase ASE 15.0.3

We are getting this error in about every half hour or so:

java.lang.NullPointerException
Nov 30, 2011 3:21:28 PM org.apache.tomcat.jdbc.pool.ConnectionPool abandon
WARNING: Connection has been abandoned PooledConnection[net.sourceforge.jtds.jdbc.ConnectionJDBC3@40c65cd4]:java.lang.E\
xception
       at org.apache.tomcat.jdbc.pool.ConnectionPool.getThreadDump(ConnectionPool.java:973)
       at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:727)
       at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:585)
       at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:174)
       at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:124)
       at pathology.connection.CopathDbInterface.getConnectionFromPull(CopathDbInterface.java:119)
       at pathology.connection.CopathDbInterface.getConnection(CopathDbInterface.java:85)
       at pathology.connection.CopathDbInterface.getConnection(CopathDbInterface.java:68)
       at pathology.histology.server.DashboardServiceImpl.getBlockDashboardStatsMap(DashboardServiceImpl.java:923)
       at pathology.histology.server.DashboardServiceImpl.getBlockDashboardStats(DashboardServiceImpl.java:513)
       at pathology.histology.server.DashboardServiceImpl.getDashboardStats(DashboardServiceImpl.java:62)
       at sun.reflect.GeneratedMethodAccessor597.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:597)
       at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
       at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
       at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
       at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
       at org.apach


Any good idea where to start troubleshooting ?

Thanks ahead,

János



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