Fix exception when SVG icon name has no file extension

poce1don · poce1don · commit 7fc26fe77e85 · 2026-01-24T20:44:50.000-03:00
diff --git a/flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/FlatSVGIcon.java b/flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/FlatSVGIcon.java
@@ -524,7 +524,8 @@ private static SVGDocument loadSVGUncached( URL url ) {
 	private URL getIconURL( String name, boolean dark ) {
 		if( dark ) {
 			int dotIndex = name.lastIndexOf( '.' );
-			name = name.substring( 0, dotIndex ) + "_dark" + name.substring( dotIndex );
+			if ( dotIndex > 0 )
+				name = name.substring( 0, dotIndex ) + "_dark" + name.substring( dotIndex );
 		}
 
 		ClassLoader cl = (classLoader != null) ? classLoader : FlatSVGIcon.class.getClassLoader();

Original file line number	Diff line number	Diff line change
`@@ -524,7 +524,8 @@ private static SVGDocument loadSVGUncached( URL url ) {`
`524`	`524`	`private URL getIconURL( String name, boolean dark ) {`
`525`	`525`	`if( dark ) {`
`526`	`526`	`int dotIndex = name.lastIndexOf( '.' );`
`527`		`- name = name.substring( 0, dotIndex ) + "_dark" + name.substring( dotIndex );`
	`527`	`+ if ( dotIndex > 0 )`
	`528`	`+ name = name.substring( 0, dotIndex ) + "_dark" + name.substring( dotIndex );`
`528`	`529`	`}`
`529`	`530`
`530`	`531`	`ClassLoader cl = (classLoader != null) ? classLoader : FlatSVGIcon.class.getClassLoader();`