[Truffle] Fix logger when output is not a TTY.

* System.console() would be null. * Log to stderr, not stdout. * Fixes #4327.
jruby · Nov 21, 2016 · acad490 · acad490
1 parent d6b317b
commit acad490
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/truffle/src/main/java/org/jruby/truffle/Log.java b/truffle/src/main/java/org/jruby/truffle/Log.java
@@ -28,7 +28,7 @@ private static Logger createLogger() {
 
             @Override
             public void publish(LogRecord record) {
-                System.console().format("[ruby] %s %s%n", record.getLevel().getName(), record.getMessage());
+                System.err.printf("[ruby] %s %s%n", record.getLevel().getName(), record.getMessage());
             }
 
             @Override