--- a/langtools/src/share/classes/com/sun/tools/javac/util/JCDiagnostic.java	Wed Jul 05 16:40:31 2017 +0200
+++ b/langtools/src/share/classes/com/sun/tools/javac/util/JCDiagnostic.java	Fri Aug 22 11:46:29 2008 +0100
@@ -296,7 +296,7 @@
             line = column = -1;
         else {
             line = source.getLineNumber(n);
-            column = source.getColumnNumber(n);
+            column = source.getColumnNumber(n, true);
         }
     }