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This exception happens regularly in automatic tests on remote projects and blocks test execution. See also bug #203657 com.jcraft.jsch.JSchException: channel is not opened. [junit] at com.jcraft.jsch.Channel.connect(Channel.java:188) [junit] at org.netbeans.modules.nativeexecution.JschSupport$1.call(JschSupport.java:94) [junit] at org.netbeans.modules.nativeexecution.JschSupport$1.call(JschSupport.java:82) [junit] [catch] at org.netbeans.modules.nativeexecution.JschSupport.start(JschSupport.java:145) [junit] at org.netbeans.modules.nativeexecution.JschSupport.startCommand(JschSupport.java:108) [junit] at org.netbeans.modules.nativeexecution.support.hostinfo.impl.UnixHostInfoProvider.getRemoteHostInfo(UnixHostInfoProvider.java:170) [junit] at org.netbeans.modules.nativeexecution.support.hostinfo.impl.UnixHostInfoProvider.getHostInfo(UnixHostInfoProvider.java:109) [junit] at org.netbeans.modules.nativeexecution.support.hostinfo.FetchHostInfoTask.compute(FetchHostInfoTask.java:63) [junit] at org.netbeans.modules.nativeexecution.api.util.HostInfoUtils.getHostInfo(HostInfoUtils.java:215) [junit] at org.netbeans.modules.nativeexecution.api.util.ConnectionManager.initiateConnection(ConnectionManager.java:326) [junit] at org.netbeans.modules.nativeexecution.api.util.ConnectionManager.connectTo(ConnectionManager.java:260) [junit] at org.netbeans.modules.cnd.remote.ui.wizard.HostValidatorImpl.validate(HostValidatorImpl.java:106) [junit] at org.netbeans.modules.cnd.remote.ui.wizard.CreateHostVisualPanel2$2.call(CreateHostVisualPanel2.java:272) [junit] at org.netbeans.modules.cnd.remote.ui.wizard.CreateHostVisualPanel2$2.call(CreateHostVisualPanel2.java:247) [junit] at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) [junit] at java.util.concurrent.FutureTask.run(FutureTask.java:166) [junit] at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424) [junit] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)
is it still valid?