Use Logger instead of System.out and System.err (#10328).

Change-Id: Icf53bdb80caf7a6989b90cf5ce83dd328d3e73dd

1 files changed, 17 insertions, 0 deletions

diff --git a/theme-compiler/src/com/vaadin/sass/internal/ScssStylesheet.java b/theme-compiler/src/com/vaadin/sass/internal/ScssStylesheet.java
index ed6b98f5ac..63f59cdfab 100644
--- a/theme-compiler/src/com/vaadin/sass/internal/ScssStylesheet.java
+++ b/theme-compiler/src/com/vaadin/sass/internal/ScssStylesheet.java
@@ -24,11 +24,13 @@ import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.logging.LogManager;
 import java.util.logging.Logger;
 
 import org.w3c.css.sac.CSSException;
 import org.w3c.css.sac.InputSource;
 
+import com.vaadin.buildhelpers.CompileTheme;
 import com.vaadin.sass.internal.handler.SCSSDocumentHandler;
 import com.vaadin.sass.internal.handler.SCSSDocumentHandlerImpl;
 import com.vaadin.sass.internal.handler.SCSSErrorHandler;
@@ -457,4 +459,19 @@ public class ScssStylesheet extends Node {
     public void setCharset(String charset) {
         this.charset = charset;
     }
+
+    static {
+        String logFile = System.getProperty("java.util.logging.config.file");
+        if (logFile == null) {
+            try {
+                LogManager.getLogManager().readConfiguration(
+                        CompileTheme.class
+                                .getResourceAsStream("/logging.properties"));
+            } catch (SecurityException e) {
+                e.printStackTrace();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
 }