Error with Omero DB Connections

Dear All,

I'm testing Knime 2.3.0 (64-bit Linux) with the community Nodes. THe "OMERO DB COnnection" under the KNIME Image Processing is unable to establish a connection with OMERO DEMO server ( with the following error:


ERROR     OMERO DB Connection     Execute failed: Could not initialize class ome.util.Utils
DEBUG     OMERO DB Connection     Execute failed: Could not initialize class ome.util.Utils
java.lang.NoClassDefFoundError: Could not initialize class ome.util.Utils
    at omero.model.PermissionsI.<init>(
    at omero.model.PermissionsI$1.create(
    at IceInternal.BasicStream.readObject(
    at IceInternal.BasicStream.readPendingObjects(
    at omero.api._IAdminDelM.lookupExperimenter(
    at omero.api.IAdminPrxHelper.lookupExperimenter(
    at omero.api.IAdminPrxHelper.lookupExperimenter(
    at org.knime.core.node.ExecutionContext.createBufferedDataTable(
    at org.knime.core.node.NodeModel.execute(
    at org.knime.core.node.NodeModel.executeModel(
    at org.knime.core.node.Node.execute(
    at org.knime.core.node.workflow.SingleNodeContainer.performExecuteNode(
    at org.knime.core.node.exec.LocalNodeExecutionJob.mainExecute(
    at java.util.concurrent.Executors$
    at java.util.concurrent.FutureTask$Sync.innerRun(
    at org.knime.core.util.ThreadPool$
    at org.knime.core.util.ThreadPool$

Hi reddyg,

the problem occured due to a missing library and is fixed now (just update the knime image-processing plugin from the nigtly-build update site). Please note that especially the omero-node is in a rather experimental state and doesn't support a lot of functionalities.



Hi Martin,

I figured that was the case. Anyway, I've updated it and it is working fine.