From 53e95d02abda7a56ed81e8271dc850d41a3577ba Mon Sep 17 00:00:00 2001
From: "Michael N. Lipp" <mnl@mnl.de>
Date: Fri, 9 Jun 2023 15:43:50 +0200
Subject: [PATCH] Improve handling of common error.

---
 .../src/org/jdrupes/vmoperator/runner/qemu/Runner.java   | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/Runner.java b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/Runner.java
index 539c24b..942e078 100644
--- a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/Runner.java
+++ b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/Runner.java
@@ -203,11 +203,12 @@ public class Runner extends Component {
         // Configuration store with file in /etc (default)
         File config = new File(cmdLine.getOptionValue('c',
             "/etc/" + APP_NAME + "/config.yaml"));
-        try {
-            attach(new YamlConfigurationStore(channel(), config, false));
-        } catch (IOException e) {
-            System.err.println("Cannot open configuration file " + config);
+        // Don't rely on night config to produce a good exception
+        // for this simple case
+        if (!Files.isReadable(config.toPath())) {
+            throw new IOException("Cannot read configuration file " + config);
         }
+        attach(new YamlConfigurationStore(channel(), config, false));
         fire(new WatchFile(config.toPath()));
     }