Hi Rob,
could it be that you have these two settings as shown:
I noticed that my code crashes with an NPE if the Profiling info is
requested without first running the SHACL validation.
I will fix this for 7.1 final, and I hope you can easily work around
this by changing either of the two check boxes?
Thanks
Holger
PS: The difficulty with error handling is not to print better error
messages but to first understand all cases where a value could be null.
If I know that something can be null, I wouldn't even have to worry
about a better error message in the first place...
On 2021-11-24 9:31 am, [email protected] wrote:
Have a very simple little ontology with some shapes that all displays
and behaves as expected in the UI for an ontology asset until I turn
on "problems and suggestions", then some (but not all) classes throw a
exception report on focus.
problems and suggestions on the graph claims to generate some results
but fails to present.
digging into the underlying graphql queries if fails on the field
"focusNode { uri label }"
with the following ("best practice" completely opaque NPE :-) ):
Exception while fetching data (/graphReport/profile) : null
java.lang.NullPointerException
at
org.topbraid.shaclx.graphql.query.engine.ResultsSupport.lambda$2(ResultsSupport.java:89)
at
graphql.execution.ExecutionStrategy.fetchField(ExecutionStrategy.java:222)
I ran SHACL validation on the shapes in TBC- no issues.
class it fails on look like this:
:X
a owl:Class ;
a sh:NodeShape ;
rdfs:comment "a comment" ;
rdfs:isDefinedBy : ;
rdfs:label "A label" ;
rdfs:subClassOf :Y;
.
where :Y is another class that looks exactly the same and doesnt have
a problem...
The set of classes available in graphql - querying the meta-shapes
includes all the classes.
The available classes select box in the graphql link on the export
tab has only one I can discover (:Z a sibling of :X)
GraphQL allows me to search on that one but not the others
if i hack the query
http://localhost:8083/tbl/graphql/surveylineobs/%3AOccupationObservation
then it seems happy to query for instances (none as expected - but no
errors)
am i missing something obvious?
are there other diagnostic approaches I can use?
Can we entreat as users never to be faced with NPEs and always to
indicate what thing raised the error..
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