Minor fixes to two tests which have compilation errors in Spring v6.

Author: tdonohue

src/test/java/org/orcid/record/ValidateV2IdentifiersTest.java

@@ -59,7 +59,7 @@ public void testFunding() throws SAXException, IOException, JAXBException, Parse
         assertEquals("funding:organization-defined-type",funding.getOrganizationDefinedType().getContent());
         assertNotNull(funding.getExternalIdentifiers());
         assertNotNull(funding.getExternalIdentifiers().getExternalIdentifier());
-        Assert.notEmpty(funding.getExternalIdentifiers().getExternalIdentifier());
+        Assert.notEmpty(funding.getExternalIdentifiers().getExternalIdentifier(), "not empty");
         assertEquals("grant_number",funding.getExternalIdentifiers().getExternalIdentifier().get(0).getType());
         assertEquals("funding:external-identifier-value",funding.getExternalIdentifiers().getExternalIdentifier().get(0).getValue());
         assertEquals(new Url("http://tempuri.org"),funding.getExternalIdentifiers().getExternalIdentifier().get(0).getUrl());

src/test/java/org/orcid/record/ValidateV2_1IdentifiersTest.java

@@ -59,7 +59,7 @@ public void testFunding() throws SAXException, IOException, JAXBException, Parse
         assertEquals("funding:organization-defined-type",funding.getOrganizationDefinedType().getContent());
         assertNotNull(funding.getExternalIdentifiers());
         assertNotNull(funding.getExternalIdentifiers().getExternalIdentifier());
-        Assert.notEmpty(funding.getExternalIdentifiers().getExternalIdentifier());
+        Assert.notEmpty(funding.getExternalIdentifiers().getExternalIdentifier(), "not empty");
         assertEquals("grant_number",funding.getExternalIdentifiers().getExternalIdentifier().get(0).getType());
         assertEquals("funding:external-identifier-value",funding.getExternalIdentifiers().getExternalIdentifier().get(0).getValue());
         assertEquals(new Url("http://tempuri.org"),funding.getExternalIdentifiers().getExternalIdentifier().get(0).getUrl());