java.lang.RuntimeException: connection could not be initialized.

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Signals that an error occurred while attempting to connect a socket to a remote address and port. Typically, the remote host cannot be reached because of an intervening firewall, or if an intermediate router is down.

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via GitHub by amouhoub
, 1 year ago
connection could not be initialized.
java.lang.RuntimeException: connection could not be initialized.
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at java.net.Socket.(Socket.java:425)
at java.net.Socket.(Socket.java:241)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:258)
at com.mysql.jdbc.MysqlIO.(MysqlIO.java:306)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2504)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2541)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2323)
at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:832)
at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:46)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:408)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:417)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344)
at java.sql.DriverManager.getConnection(DriverManager.java:571)
at java.sql.DriverManager.getConnection(DriverManager.java:215)
at org.aksw.autosparql.commons.metric.SPARQLEndpointMetrics.getDefaultReadOnlyConnection(SPARQLEndpointMetrics.java:94)
at org.aksw.autosparql.commons.metric.SPARQLEndpointMetrics.getDbpediaMetrics(SPARQLEndpointMetrics.java:68)
at org.aksw.autosparql.tbsl.algorithm.learning.ranking.SimpleRankingComputation.createFeatureExtractors(SimpleRankingComputation.java:131)
at org.aksw.autosparql.tbsl.algorithm.learning.ranking.SimpleRankingComputation.computeRanking(SimpleRankingComputation.java:78)
at org.aksw.autosparql.tbsl.algorithm.learning.TBSL.answerQuestion(TBSL.java:198)
at org.aksw.autosparql.tbsl.algorithm.learning.TBSL.answerQuestion(TBSL.java:156)
at org.aksw.autosparql.tbsl.gui.vaadin.TBSLManager.answerQuestion(TBSLManager.java:340)
at org.aksw.autosparql.tbsl.gui.vaadin.view.MainView$11.run(MainView.java:504)
at java.lang.Thread.run(Thread.java:744)

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