Throw a BuildException if the root directory does not exist, instead of letting IndexGen NPE

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@274540 13f79535-47bb-0310-9956-ffa450edef68
22 years ago · a511fb22e7
--- a/proposal/xdocs/src/org/apache/ant/xdoclet/IndexGen.java
+++ b/proposal/xdocs/src/org/apache/ant/xdoclet/IndexGen.java
@@ -81,6 +81,10 @@ public class IndexGen extends Task {

        String[] categories = rootDir.list();

        if (categories == null) {
            throw new BuildException("Root directory \"" + rootDir.getPath() + "\" does not exist!", getLocation());
        }

        StringBuffer sb = new StringBuffer();
        sb.append("<html><head><title>xdocs index</title></head>");
        sb.append("<body>");