Validate Patient against http://fhir.ch/ig/ch-elm/StructureDefinition/ChElmPatientInitials|1.3.1...java.lang.NullPointerException: Cannot invoke "String.length()" because "s" is null
at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.funcLength(FHIRPathEngine.java:5754)
at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.evaluateFunction(FHIRPathEngine.java:3975)
at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.execute(FHIRPathEngine.java:1555)
at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.execute(FHIRPathEngine.java:1567)
at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.execute(FHIRPathEngine.java:1567)
at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.execute(FHIRPathEngine.java:1562)
at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.execute(FHIRPathEngine.java:1583)
at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.evaluate(FHIRPathEngine.java:828)
Validate Patient against http://fhir.ch/ig/ch-elm/StructureDefinition/ChElmPatientInitials|1.3.1...java.lang.NullPointerException: Cannot invoke "String.length()" because "s" is null at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.funcLength(FHIRPathEngine.java:5754) at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.evaluateFunction(FHIRPathEngine.java:3975) at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.execute(FHIRPathEngine.java:1555) at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.execute(FHIRPathEngine.java:1567) at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.execute(FHIRPathEngine.java:1567) at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.execute(FHIRPathEngine.java:1562) at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.execute(FHIRPathEngine.java:1583) at org.hl7.fhir.r5.fhirpath.FHIRPathEngine.evaluate(FHIRPathEngine.java:828)