SONARPLUGINS-2256 Do not force UTF-8 as the default charset

=> By default sonar-runner should not use UTF-8 to read source code 
   files but the default encoding of the JVM.

2 files changed, 19 insertions, 3 deletions

diff --git a/src/main/java/org/sonar/runner/Main.java b/src/main/java/org/sonar/runner/Main.java
index 09a4c01..ee3449b 100644
--- a/src/main/java/org/sonar/runner/Main.java
+++ b/src/main/java/org/sonar/runner/Main.java
@@ -25,6 +25,7 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Locale;
 import java.util.Properties;
 
 /**
@@ -68,6 +69,7 @@ public final class Main {
       Logs.info("Java version: " + System.getProperty("java.version", "<unknown>")
         + ", vendor: " + System.getProperty("java.vendor", "<unknown>"));
       Logs.info("OS name: \"" + System.getProperty("os.name") + "\", version: \"" + System.getProperty("os.version") + "\", arch: \"" + System.getProperty("os.arch") + "\"");
+      Logs.info("Default locale: \"" + Locale.getDefault() + "\", source code encoding: \"" + runner.getSourceCodeEncoding() + "\"");
       if (debugMode) {
         Logs.info("Other system properties:");
         Logs.info("  - sun.arch.data.model: \"" + System.getProperty("sun.arch.data.model") + "\"");
diff --git a/src/main/java/org/sonar/runner/Runner.java b/src/main/java/org/sonar/runner/Runner.java
index 6c4e6df..e17face 100644
--- a/src/main/java/org/sonar/runner/Runner.java
+++ b/src/main/java/org/sonar/runner/Runner.java
@@ -25,6 +25,7 @@ import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Properties;
@@ -102,6 +103,8 @@ public final class Runner {
    */
   private static final String[] UNSUPPORTED_VERSIONS = {"1", "2.0", "2.1", "2.2", "2.3", "2.4", "2.5", "2.6", "2.7", "2.8", "2.9", "2.10"};
 
+  private static final String PROPERTY_SOURCE_ENCODING = "sonar.sourceEncoding";
+
   private File projectDir;
   private File workDir;
   private String[] unmaskedPackages;
@@ -114,6 +117,10 @@ public final class Runner {
     // set the default values for the Sonar Runner - they can be overriden with #setEnvironmentInformation
     this.properties.put(PROPERTY_ENVIRONMENT_INFORMATION_KEY, "Runner");
     this.properties.put(PROPERTY_ENVIRONMENT_INFORMATION_VERSION, Version.getVersion());
+    // sets the encoding if not forced
+    if (!properties.containsKey(PROPERTY_SOURCE_ENCODING)) {
+      properties.setProperty(PROPERTY_SOURCE_ENCODING, Charset.defaultCharset().name());
+    }
     // and init the directories
     initDirs();
   }
@@ -187,6 +194,13 @@ public final class Runner {
   }
 
   /**
+   * @return the source code encoding that will be used by Sonar
+   */
+  public String getSourceCodeEncoding() {
+    return properties.getProperty(PROPERTY_SOURCE_ENCODING);
+  }
+
+  /**
    * @return global properties, project properties and command-line properties
    */
   protected Properties getProperties() {
@@ -204,9 +218,9 @@ public final class Runner {
   private BootstrapClassLoader createClassLoader(Bootstrapper bootstrapper) {
     URL url = getJarPath();
     return bootstrapper.createClassLoader(
-      new URL[]{url}, // Add JAR with Sonar Runner - it's a Jar which contains this class
-      getClass().getClassLoader(),
-      unmaskedPackages);
+        new URL[] {url}, // Add JAR with Sonar Runner - it's a Jar which contains this class
+        getClass().getClassLoader(),
+        unmaskedPackages);
   }
 
   /**