Beim Aufbau des Dialogs ist ein fataler Fehler aufgetreten!

Die Ursache für diesen Fehler war:
org.apache.ojb.broker.PersistenceBrokerException: org.apache.ojb.broker.PersistenceBrokerException: Used ConnectionManager instance could not obtain a connection     
org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl.loadSize(CollectionProxyDefaultImpl.java: 166)     
org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl.size(CollectionProxyDefaultImpl.java: 276)     
kos.generator.acl.filter.DelegatingFilter.filter(DelegatingFilter.java: 64)     
kos.generator.acl.ACLFilters.filter(ACLFilters.java: 36)     
kos.wnetz.om.base.Folder.getSubFolders(Folder.java: 170)     
kos.wnetz.om.Folder.getSubFolders(Folder.java: 171)     
kos.wnetz.modules.fs2.service.FolderFacade.getFolders(FolderFacade.java: 135)     
kos.wnetz.modules.fs2.service.FolderFacade.getAllItems(FolderFacade.java: 126)     
kos.wnetz.modules.fs2.folderviews.StandardFolderView.getViewPart(StandardFolderView.java: 34)     
kos.wnetz.modules.fs2.widgets.ElementView.init(ElementView.java: 27)     
kos.wnetz.modules.fs2.widgets.ElementView.buildHtml(ElementView.java: 48)     
kos.wnetz.window.WWContainer.getHtml(WWContainer.java: 230)     
kos.wnetz.window.WWContainer.getHtml(WWContainer.java: 256)     
kos.wnetz.window.WWContainer.getHtml(WWContainer.java: 269)     
kos.wnetz.window.WWDiv.buildHtml(WWDiv.java: 74)     
kos.wnetz.window.masterlayout.ContentPane.buildHtml(ContentPane.java: 31)     
kos.wnetz.window.WWContainer.getHtml(WWContainer.java: 230)     
kos.wnetz.window.WWContainer.getHtml(WWContainer.java: 256)     
kos.wnetz.window.WWContainer.getHtml(WWContainer.java: 269)     
kos.wnetz.window.WWDivContainer.buildHtml(WWDivContainer.java: 55)     
... 124 weitere Elemente...
Ursache dafür war:
org.apache.ojb.broker.PersistenceBrokerException: Used ConnectionManager instance could not obtain a connection     
org.apache.ojb.broker.accesslayer.StatementManager.getPreparedStatement(StatementManager.java: 624)     
org.apache.ojb.broker.accesslayer.JdbcAccessImpl.executeQuery(JdbcAccessImpl.java: 293)     
org.apache.ojb.broker.accesslayer.RsQueryObject.performQuery(RsQueryObject.java: 93)     
org.apache.ojb.broker.accesslayer.RsIterator.(RsIterator.java: 194)     
org.apache.ojb.broker.accesslayer.ReportQueryRsIterator.(ReportQueryRsIterator.java: 50)     
org.apache.ojb.broker.core.ReportRsIteratorFactoryImpl.createRsIterator(ReportRsIteratorFactoryImpl.java: 64)     
org.apache.ojb.broker.core.PersistenceBrokerImpl.getRsIteratorFromQuery(PersistenceBrokerImpl.java: 2242)     
org.apache.ojb.broker.core.PersistenceBrokerImpl.getReportQueryIteratorFromQuery(PersistenceBrokerImpl.java: 2192)     
org.apache.ojb.broker.core.PersistenceBrokerImpl.getReportQueryIteratorByQuery(PersistenceBrokerImpl.java: 2179)     
org.apache.ojb.broker.core.PersistenceBrokerImpl.getCount(PersistenceBrokerImpl.java: 2150)     
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCount(DelegatingPersistenceBroker.java: 400)     
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCount(DelegatingPersistenceBroker.java: 400)     
org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl.loadSize(CollectionProxyDefaultImpl.java: 162)     
org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl.size(CollectionProxyDefaultImpl.java: 276)     
kos.generator.acl.filter.DelegatingFilter.filter(DelegatingFilter.java: 64)     
kos.generator.acl.ACLFilters.filter(ACLFilters.java: 36)     
kos.wnetz.om.base.Folder.getSubFolders(Folder.java: 170)     
kos.wnetz.om.Folder.getSubFolders(Folder.java: 171)     
kos.wnetz.modules.fs2.service.FolderFacade.getFolders(FolderFacade.java: 135)     
kos.wnetz.modules.fs2.service.FolderFacade.getAllItems(FolderFacade.java: 126)     
... 136 weitere Elemente...
Ursache dafür war:
org.apache.ojb.broker.accesslayer.LookupException: Error getting Connection from DriverManager with url (jdbc:mysql://localhost:3306/685?autoReconnectForPools=true&zeroDateTimeBehavior=convertToNull&jdbcCompliantTruncation=false&useServerPrepStmts=false) and driver (com.mysql.jdbc.Driver)     
org.apache.ojb.broker.accesslayer.ConnectionFactoryAbstractImpl.newConnectionFromDriverManager(ConnectionFactoryAbstractImpl.java: 290)     
org.apache.ojb.broker.accesslayer.ConnectionFactoryNotPooledImpl.checkOutJdbcConnection(ConnectionFactoryNotPooledImpl.java: 46)     
org.apache.ojb.broker.accesslayer.ConnectionFactoryAbstractImpl.lookupConnection(ConnectionFactoryAbstractImpl.java: 144)     
org.apache.ojb.broker.accesslayer.ConnectionManagerImpl.getConnection(ConnectionManagerImpl.java: 121)     
org.apache.ojb.broker.accesslayer.StatementManager.getPreparedStatement(StatementManager.java: 620)     
org.apache.ojb.broker.accesslayer.JdbcAccessImpl.executeQuery(JdbcAccessImpl.java: 293)     
org.apache.ojb.broker.accesslayer.RsQueryObject.performQuery(RsQueryObject.java: 93)     
org.apache.ojb.broker.accesslayer.RsIterator.(RsIterator.java: 194)     
org.apache.ojb.broker.accesslayer.ReportQueryRsIterator.(ReportQueryRsIterator.java: 50)     
org.apache.ojb.broker.core.ReportRsIteratorFactoryImpl.createRsIterator(ReportRsIteratorFactoryImpl.java: 64)     
org.apache.ojb.broker.core.PersistenceBrokerImpl.getRsIteratorFromQuery(PersistenceBrokerImpl.java: 2242)     
org.apache.ojb.broker.core.PersistenceBrokerImpl.getReportQueryIteratorFromQuery(PersistenceBrokerImpl.java: 2192)     
org.apache.ojb.broker.core.PersistenceBrokerImpl.getReportQueryIteratorByQuery(PersistenceBrokerImpl.java: 2179)     
org.apache.ojb.broker.core.PersistenceBrokerImpl.getCount(PersistenceBrokerImpl.java: 2150)     
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCount(DelegatingPersistenceBroker.java: 400)     
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCount(DelegatingPersistenceBroker.java: 400)     
org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl.loadSize(CollectionProxyDefaultImpl.java: 162)     
org.apache.ojb.broker.core.proxy.CollectionProxyDefaultImpl.size(CollectionProxyDefaultImpl.java: 276)     
kos.generator.acl.filter.DelegatingFilter.filter(DelegatingFilter.java: 64)     
kos.generator.acl.ACLFilters.filter(ACLFilters.java: 36)     
... 140 weitere Elemente...
Ursache dafür war:
java.sql.SQLNonTransientConnectionException: Too many connections     
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java: 110)     
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java: 97)     
com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java: 122)     
com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java: 836)     
com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java: 456)     
com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java: 246)     
com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java: 199)     
java.sql.DriverManager.getConnection(DriverManager.java: 683)     
java.sql.DriverManager.getConnection(DriverManager.java: 191)     
org.apache.ojb.broker.accesslayer.ConnectionFactoryAbstractImpl.newConnectionFromDriverManager(ConnectionFactoryAbstractImpl.java: 284)     
org.apache.ojb.broker.accesslayer.ConnectionFactoryNotPooledImpl.checkOutJdbcConnection(ConnectionFactoryNotPooledImpl.java: 46)     
org.apache.ojb.broker.accesslayer.ConnectionFactoryAbstractImpl.lookupConnection(ConnectionFactoryAbstractImpl.java: 144)     
org.apache.ojb.broker.accesslayer.ConnectionManagerImpl.getConnection(ConnectionManagerImpl.java: 121)     
org.apache.ojb.broker.accesslayer.StatementManager.getPreparedStatement(StatementManager.java: 620)     
org.apache.ojb.broker.accesslayer.JdbcAccessImpl.executeQuery(JdbcAccessImpl.java: 293)     
org.apache.ojb.broker.accesslayer.RsQueryObject.performQuery(RsQueryObject.java: 93)     
org.apache.ojb.broker.accesslayer.RsIterator.(RsIterator.java: 194)     
org.apache.ojb.broker.accesslayer.ReportQueryRsIterator.(ReportQueryRsIterator.java: 50)     
org.apache.ojb.broker.core.ReportRsIteratorFactoryImpl.createRsIterator(ReportRsIteratorFactoryImpl.java: 64)     
org.apache.ojb.broker.core.PersistenceBrokerImpl.getRsIteratorFromQuery(PersistenceBrokerImpl.java: 2242)     
... 149 weitere Elemente...