Fix ClassCastException when a wrapped span impl is activated instead …

[objectiser]

…of the Jaeger Span

Signed-off-by: Gary Brown gary@brownuk.com

[codecov]

Codecov Report

Merging #327 into master will increase coverage by 0.26%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #327      +/-   ##
============================================
+ Coverage     83.91%   84.17%   +0.26%     
  Complexity      565      565              
============================================
  Files            91       91              
  Lines          2225     2225              
  Branches        258      258              
============================================
+ Hits           1867     1873       +6     
+ Misses          257      251       -6     
  Partials        101      101

Impacted Files	Coverage Δ	Complexity Δ
...ger-core/src/main/java/com/uber/jaeger/Tracer.java	86.89% <100%> (ø)	20 <0> (ø)	⬇️
...java/com/uber/jaeger/reporters/RemoteReporter.java	90% <0%> (+2.85%)	9% <0%> (ø)	⬇️
...jaeger/reporters/protocols/ThriftUdpTransport.java	84.74% <0%> (+3.38%)	14% <0%> (ø)	⬇️
...ain/java/com/uber/jaeger/senders/ThriftSender.java	77.55% <0%> (+4.08%)	10% <0%> (ø)	⬇️

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[objectiser]

@yurishkuro Assuming no issues with the PR, would it be possible to do a release after it is merged as it is causing problems with the API extensions/java-metrics?

[yurishkuro]

A breaking change, unfortunately