FIX NPE in statisticsSpeciesByInstitute

src/main/java/org/genesys2/server/model/genesys/Accession.java

@@ -58,7 +58,7 @@ public class Accession extends VersionedAuditedModel {
 	@JoinColumn(name = "taxonomyId")
 	private Taxonomy taxonomy1;
 
-	@ManyToOne(cascade = {}, optional = false)
+	@ManyToOne(cascade = {}, optional = true)
 	@JoinColumn(name = "taxonomyId2")
 	private Taxonomy2 taxonomy;
 

src/main/java/org/genesys2/server/service/impl/GenesysServiceImpl.java

@@ -366,7 +366,8 @@ public class GenesysServiceImpl implements GenesysService, TraitService, Dataset
 	public Page<Object[]> statisticsSpeciesByInstitute(FaoInstitute institute, Pageable pageable) {
 		Page<Object[]> page = accessionRepository.statisticsSpeciesInInstitute(institute, pageable);
 		for (Object[] r : page.getContent()) {
-			r[0] = taxonomyService.get((Long) r[0]);
+			if (r[0] != null)
+				r[0] = taxonomyService.get((Long) r[0]);
 		}
 		return page;
 	}