Empty class names are not valid

vjovanov · vjovanov · commit 052dbdee014f · 2025-10-03T14:10:21.000+02:00
diff --git a/substratevm/src/com.oracle.svm.configure/src/com/oracle/svm/configure/ClassNameSupport.java b/substratevm/src/com.oracle.svm.configure/src/com/oracle/svm/configure/ClassNameSupport.java
@@ -181,6 +181,9 @@ private static boolean isValidWrappingArrayElementType(String name, int startInd
     }
 
     private static boolean isValidFullyQualifiedClassName(String name, int startIndex, int endIndex, char packageSeparator) {
+        if (name.isEmpty()) {
+            return false;
+        }
         int lastPackageSeparatorIndex = -1;
         for (int i = startIndex; i < endIndex; ++i) {
             char current = name.charAt(i);

Original file line number	Diff line number	Diff line change
`@@ -181,6 +181,9 @@ private static boolean isValidWrappingArrayElementType(String name, int startInd`
`181`	`181`	`}`
`182`	`182`
`183`	`183`	`private static boolean isValidFullyQualifiedClassName(String name, int startIndex, int endIndex, char packageSeparator) {`
	`184`	`+ if (name.isEmpty()) {`
	`185`	`+ return false;`
	`186`	`+ }`
`184`	`187`	`int lastPackageSeparatorIndex = -1;`
`185`	`188`	`for (int i = startIndex; i < endIndex; ++i) {`
`186`	`189`	`char current = name.charAt(i);`