From 18b3de8bd2dc0bebfe54f8b93c52944d3b0f2495 Mon Sep 17 00:00:00 2001
From: Guillaume Martres <smarter@ubuntu.com>
Date: Sun, 27 Jan 2019 15:20:15 +0100
Subject: [PATCH] sbt-dotty: fix "sbt doc" after the Java rewrite

If args0 is bigger than retained, `retained.toArray(args0)` will fill
args0 with the elements of retained and fill the rest with `null`,
leading to an NPE later on. This was caught by the sbt scripted tests and
can be reproduced by running:

sbt-dotty/scripted sbt-dotty/example-project
---
 sbt-bridge/src/xsbt/DottydocRunner.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sbt-bridge/src/xsbt/DottydocRunner.java b/sbt-bridge/src/xsbt/DottydocRunner.java
index 48883ab13e3c..31a9cc97a43b 100644
--- a/sbt-bridge/src/xsbt/DottydocRunner.java
+++ b/sbt-bridge/src/xsbt/DottydocRunner.java
@@ -67,7 +67,7 @@ public void run() {
         }
         return msg.toString();
       });
-      args = retained.toArray(args0);
+      args = retained.toArray(new String[retained.size()]);
     } else {
       args = args0;
     }