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NullPointerException #52

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simao opened this issue Jul 9, 2019 · 0 comments

simao commented Jul 9, 2019

I am getting the following error when using play-zipkin-tracing:

[info]   java.lang.NullPointerException: context == null
[info]   at brave.Tracer.joinSpan(Tracer.java:185)
[info]   at brave.play.ZipkinTraceServiceLike.toSpan(ZipkinTraceServiceLike.scala:173)
[info]   at brave.play.ZipkinTraceServiceLike.toSpan$(ZipkinTraceServiceLike.scala:168)

toSpan uses joinSpan https://github.com/openzipkin-contrib/play-zipkin-tracing/blob/master/play-zipkin-tracing/core/src/main/scala/brave/play/ZipkinTraceServiceLike.scala#L168

But the problem is it also passes contextOrFlags.context() to joinSpan, which might be null if no context was extracted.

Would using nextSpan(contextOrFlags), as suggested in brave, be a better choice?

https://github.com/openzipkin/brave/blob/master/brave/src/main/java/brave/Tracer.java#L160

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