Merge branch 'issue273' of github.com:spdx/Spdx-Java-Library into issue273

Author: goneall

src/main/java/org/spdx/storage/simple/InMemSpdxStore.java

@@ -414,10 +414,10 @@ public void leaveCriticalSection(IModelStoreLock lock) {
 	}
 
 	@Override
-	public Optional<String> getCaseSensitiveId(String nameSpace, String caseInsensisitiveId) {
+	public Optional<String> getCaseSensitiveId(String nameSpace, String caseInsensitiveId) {
 		Objects.requireNonNull(nameSpace, "Namespace can not be null");
-		Objects.requireNonNull(caseInsensisitiveId, "CaseInsensisitiveId can not be null");
-		String objectUri = nameSpace + "#" + caseInsensisitiveId;
+		Objects.requireNonNull(caseInsensitiveId, "CaseInsensitiveId can not be null");
+		String objectUri = nameSpace + "#" + caseInsensitiveId;
 		StoredTypedItem item = typedValueMap.get(objectUri.toLowerCase());
 		if (Objects.isNull(item)) {
 			return Optional.empty();