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java.lang.NullPointerException: 	at sun.reflect.GeneratedConstructorAccessor171.newInstance(Unknown Source)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)	at java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:598)	at java.util.concurrent.ForkJoinTask.reportException(ForkJoinTask.java:677)	at java.util.concurrent.ForkJoinTask.invoke(ForkJoinTask.java:735)	at java.util.stream.ForEachOps$ForEachOp.evaluateParallel(ForEachOps.java:160)	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateParallel(ForEachOps.java:174)	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:233)	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:583)	at com.tradair.tnet.services.trades.TradeService.updateUnrealizedPNL(TradeService.java:173)