fix fileExtension()

eclipse-n4js · Jan 22, 2024 · a30d4bf · a30d4bf
1 parent ea88915
commit a30d4bf
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/plugins/org.eclipse.n4js.utils/src/org/eclipse/n4js/utils/URIUtils.java b/plugins/org.eclipse.n4js.utils/src/org/eclipse/n4js/utils/URIUtils.java
@@ -93,12 +93,17 @@ static private int fileExtensionIndex(URI uri) {
 		if (firstIdx < 0) {
 			return -1;
 		}
+		boolean foundDot = false;
 		for (int idx = firstIdx; idx > 0; idx--) {
 			if (lastSegment.charAt(idx) == '.') {
+				foundDot = true;
 				firstIdx = idx + 1;
 				break;
 			}
 		}
+		if (!foundDot) {
+			return -1;
+		}
 		String ext1 = lastSegment.substring(firstIdx);
 		if (extensionPrefixes.containsKey(ext1)) {
 			int scndIdx = firstIdx - 2;