hillview
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vmware
Big data spreadsheet
``` TableTarget.getDataQuantiles() java.lang.NullPointerException: Value should not be null at org.hillview.utils.Converters.checkNull(Converters.java:74) at org.hillview.sketches.highorder.MultiPostprocessedSketch.postProcess(MultiPostprocessedSketch.java:55) at org.hillview.sketches.highorder.MultiPostprocessedSketch.postProcess(MultiPostprocessedSketch.java:37) at org.hillview.RpcTarget$CompleteSketchResultObserver.onCompleted(RpcTarget.java:342) at org.hillview.RpcTarget.runObservedSketch(RpcTarget.java:424) at org.hillview.RpcTarget.runCompleteSketch(RpcTarget.java:444) at org.hillview.targets.TableTarget.getDataQuantiles(TableTarget.java:245) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at...
The data is parsed twice: once by grok, and once by Hillview.
With PR https://github.com/vmware/hillview/pull/607, we can use Graal to run different languages on the JVM. Other than the special casing for dates in `JSVirtualRowSnapshot`, the code is basically guest language agnostic....
