java.lang.NullPointerException: This exception has no message.

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Take a look at this blog post on how to set up Grid2 https://goo.gl/rxzbE6. A user related (in the email group on the source) that using older selenium libs solves this exception.

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java.lang.NullPointerException:
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:192)
at com.google.common.base.Joiner.toString(Joiner.java:436)
at com.google.common.base.Joiner.appendTo(Joiner.java:108)
at com.google.common.base.Joiner.appendTo(Joiner.java:152)
at com.google.common.base.Joiner.join(Joiner.java:193)
at org.n52.sos.converter.CoordianteTransformator.transformSweCoordinates(CoordianteTransformator.java:519)
at org.n52.sos.converter.CoordianteTransformator.transformPosition(CoordianteTransformator.java:472)
at org.n52.sos.converter.CoordianteTransformator.checkAbstractProcess(CoordianteTransformator.java:435)
at org.n52.sos.converter.CoordianteTransformator.checkAbstractSensorML(CoordianteTransformator.java:413)
at org.n52.sos.converter.CoordianteTransformator.modifyDescribeSensorResponse(CoordianteTransformator.java:390)
at org.n52.sos.converter.CoordianteTransformator.modifyResponse(CoordianteTransformator.java:196)
at org.n52.sos.request.operator.AbstractRequestOperator.checkForModifierAndProcess(AbstractRequestOperator.java:232)
at org.n52.sos.request.operator.AbstractRequestOperator.receiveRequest(AbstractRequestOperator.java:167)
at org.n52.sos.service.operator.AbstractServiceOperator.receiveRequest(AbstractServiceOperator.java:61)
at org.n52.sos.binding.PoxBinding.doPostOperation(PoxBinding.java:73)

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