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

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Google Groups by William Speirs, 11 months ago
This exception has no message.
java.lang.NullPointerException:
at org.testfx.util.NodeQueryUtils.fromWindow(NodeQueryUtils.java:179)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at org.testfx.util.NodeQueryUtils.rootOfWindow(NodeQueryUtils.java:75)
at org.testfx.util.NodeQueryUtils.rootsOfWindows(NodeQueryUtils.java:65)
at org.testfx.service.finder.impl.NodeFinderImpl.rootsOfWindows(NodeFinderImpl.java:116)
at org.testfx.service.finder.impl.NodeFinderImpl.fromAll(NodeFinderImpl.java:77)
at org.testfx.service.finder.impl.NodeFinderImpl.lookup(NodeFinderImpl.java:62)
at org.testfx.api.FxRobot.lookup(FxRobot.java:212)
at org.testfx.api.FxRobot.pointOfVisibleNode(FxRobot.java:1076)
at org.testfx.api.FxRobot.clickOn(FxRobot.java:740)
at org.testfx.api.FxRobot.rightClickOn(FxRobot.java:799)

Users with the same issue

You are the first who have seen this exception.

Write tip

Know the solutions? Share your knowledge to help other developers to debug faster.