Fix typos method and parameter

src/main/java/org/spdx/storage/IModelStore.java

@@ -43,7 +43,7 @@
  *
  */
 public interface IModelStore extends AutoCloseable {
-	
+
 	interface IModelStoreLock {
 		void unlock();
 	}
@@ -52,7 +52,7 @@ interface IModelStoreLock {
     interface ModelUpdate {
 		void apply() throws InvalidSPDXAnalysisException;
 	}
-	
+
 	/**
 	 * Different types of ID's
 	 */
@@ -62,7 +62,8 @@ enum IdType {
 		SpdxId, 			// ID's that start with SpdxRef-
 		ListedLicense, 		// ID's associated with listed licenses
 		Anonymous, 			// ID's for object only referenced internally
-		Unkown}				// ID's that just don't fit any pattern
+		Unkown				// ID's that just don't fit any pattern (supposed to be "Unknown")
+	}
 
 	/**
 	 * @param objectUri unique URI within the SPDX model store for the objects
@@ -223,17 +224,30 @@ boolean isPropertyValueAssignableTo(String objectUri, PropertyDescriptor propert
 	/**
 	 * In SPDX 2.2 license refs are allowed to be matched case-insensitive.  This function will return
 	 * the case-sensitive ID (e.g. if you have LicenseRef-ABC, calling this function with licenseref-abc will return LicenseRef-ABC
+	 * @param nameSpace the nameSpace used for the ID - the URI is formed by the nameSpace + "#" + caseInsensitiveId
+	 * @param caseInsensitiveId ID - case will be ignored
+	 * @return the case-sensitive ID if it exists
+	 */
+    Optional<String> getCaseSensitiveId(String nameSpace, String caseInsensitiveId);
+
+	/**
+	 * Alias for getCaseSensitiveId
 	 * @param nameSpace the nameSpace used for the ID - the URI is formed by the nameSpace + "#" + caseInsensisitiveId
 	 * @param caseInsensisitiveId ID - case will be ignored
 	 * @return the case-sensitive ID if it exists
+	 * @deprecated As of release 1.0, replaced by {@link #getCaseSensitiveId(String, String)}
 	 */
-    Optional<String> getCaseSensisitiveId(String nameSpace, String caseInsensisitiveId);
+	@Deprecated
+	default Optional<String> getCaseSensisitiveId(String nameSpace, String caseInsensisitiveId) {
+		return getCaseSensitiveId(nameSpace, caseInsensisitiveId);
+	}
 
 	/**
 	 * @param objectUri unique URI within the SPDX model store for the objects
 	 * @return type TypedValue containing the type of the ModelObject related to the ID
 	 */
     Optional<TypedValue> getTypedValue(String objectUri) throws InvalidSPDXAnalysisException;
+
 	/**
 	 * Deletes an item from the document
 	 * @param objectUri unique URI within the SPDX model store for the objects

src/main/java/org/spdx/storage/NullModelStore.java

@@ -156,8 +156,8 @@ public IdType getIdType(String objectUri) {
 	}
 
 	@Override
-	public Optional<String> getCaseSensisitiveId(String nameSpace,
-			String caseInsensisitiveId) {
+	public Optional<String> getCaseSensitiveId(String nameSpace,
+			String caseInsensitiveId) {
 		return Optional.empty();
 	}
 

src/test/java/org/spdx/storage/MockModelStore.java

@@ -194,8 +194,8 @@ public IdType getIdType(String objectUri) {
 	}
 
 	@Override
-	public Optional<String> getCaseSensisitiveId(String nameSpace,
-			String caseInsensisitiveId) {
+	public Optional<String> getCaseSensitiveId(String nameSpace,
+			String caseInsensitiveId) {
 		return Optional.empty();
 	}