Fix violations / improve documentation / refactor some code

src/main/java/org/sonar/runner/Main.java

 
 package org.sonar.runner;
 
+import org.sonar.runner.bootstrapper.utils.PrivateIOUtils;
+
 import org.sonar.runner.bootstrapper.BootstrapException;
-import org.sonar.runner.internal.PrivateIOUtils;
 import org.sonar.runner.utils.SonarRunnerVersion;
 
 import java.io.File;
 
   private static boolean debugMode = false;
 
+  /**
+   * Entry point of the program.
+   */
   public static void main(String[] args) {
     long startTime = System.currentTimeMillis();
     try {

src/main/java/org/sonar/runner/Runner.java

 public final class Runner {
 
   /**
+   * Old property used to activate debug level for logging.
+   * 
    * @deprecated Replaced by sonar.verbose since 1.2
    */
   @Deprecated
   public static final String PROPERTY_OLD_DEBUG_MODE = "runner.debug";
 
   /**
+   * Property used to increase logging information.
+   * 
    * @since 1.2
    */
   public static final String PROPERTY_VERBOSE = "sonar.verbose";
 
   /**
+   * Property used to specify the working directory for the runner. May be a relative or absolute path. 
+   * 
    * @since 1.4
    */
   public static final String PROPERTY_WORK_DIRECTORY = "sonar.working.directory";
+
+  /**
+   * Default value of the working directory.
+   */
   public static final String DEF_VALUE_WORK_DIRECTORY = ".sonar";
 
   /**
+   * Property used to specify the base directory of the project to analyse.
+   * 
    * @since 1.5
    */
   public static final String PROPERTY_PROJECT_DIR = "sonar.projectDir";
 
   /**
+   * Property used to specify the name of the tool that will run a Sonar analysis.
+   * 
    * @since 1.5
    */
   public static final String PROPERTY_ENVIRONMENT_INFORMATION_KEY = "sonar.environment.information.key";
 
   /**
+   * Property used to specify the version of the tool that will run a Sonar analysis.
+   * 
    * @since 1.5
    */
   public static final String PROPERTY_ENVIRONMENT_INFORMATION_VERSION = "sonar.environment.information.version";

src/main/java/org/sonar/runner/RunnerException.java

 package org.sonar.runner;
 
 /**
+ * Exception thrown by the Sonar Runner when something bad happens.
+ * 
  * @since 1.2
  */
 public class RunnerException extends RuntimeException {
 
   private static final long serialVersionUID = 4810407777585753030L;
 
+  /**
+   * See {@link RuntimeException}
+   */
   public RunnerException(String message) {
     super(message);
   }
 
+  /**
+   * See {@link RuntimeException}
+   */
   public RunnerException(Throwable cause) {
     super(cause);
   }
 
+  /**
+   * See {@link RuntimeException}
+   */
   public RunnerException(String message, Throwable cause) {
     super(message, cause);
   }

src/main/java/org/sonar/runner/bootstrapper/BootstrapException.java

  */
 package org.sonar.runner.bootstrapper;
 
+/**
+ * Exception thrown by the bootstrapper when something bad happens.
+ */
 public class BootstrapException extends RuntimeException {
 
+  private static final long serialVersionUID = -4974995497654796971L;
+
+  /**
+   * See {@link RuntimeException}
+   */
   public BootstrapException(String message) {
     super(message);
   }
 
+  /**
+   * See {@link RuntimeException}
+   */
   public BootstrapException(Throwable cause) {
     super(cause);
   }
 
+  /**
+   * See {@link RuntimeException}
+   */
   public BootstrapException(String message, Throwable cause) {
     super(message, cause);
   }

src/main/java/org/sonar/runner/bootstrapper/Bootstrapper.java

  */
 package org.sonar.runner.bootstrapper;
 
-import org.sonar.runner.internal.PrivateIOUtils;
+import org.sonar.runner.bootstrapper.utils.PrivateIOUtils;
+
 import org.sonar.runner.utils.SonarRunnerVersion;
 
 import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * Bootstrapper used to download everything from the server and create the correct classloader required to execute a Sonar analysis in isolation.
+ */
 public class Bootstrapper {
 
   private static final String VERSION_PATH = "/api/server/version";

src/main/java/org/sonar/runner/internal/PrivateIOUtils.java → src/main/java/org/sonar/runner/bootstrapper/utils/PrivateIOUtils.java

  * License along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
  */
-package org.sonar.runner.internal;
+package org.sonar.runner.bootstrapper.utils;
 
 import java.io.Closeable;
 import java.io.File;

src/main/java/org/sonar/runner/internal/package-info.java → src/main/java/org/sonar/runner/bootstrapper/utils/package-info.java

  * Internal package that provides utils for internal purposes.
  * Should not be used by consumers.
  */
-package org.sonar.runner.internal;
+package org.sonar.runner.bootstrapper.utils;

src/main/java/org/sonar/runner/model/Launcher.java

 import org.sonar.api.utils.SonarException;
 import org.sonar.batch.Batch;
 import org.sonar.batch.bootstrapper.EnvironmentInformation;
-import org.sonar.runner.Main;
 import org.sonar.runner.Runner;
 
 import java.io.File;
   }
 
   /**
-   * This method invoked from {@link Main}. Do not rename it.
+   * Main entry point.
    */
   public void execute() {
     File baseDir = new File(propertiesFromRunner.getProperty(Runner.PROPERTY_PROJECT_DIR));

src/main/java/org/sonar/runner/utils/SonarRunnerVersion.java

  */
 package org.sonar.runner.utils;
 
-import org.sonar.runner.internal.PrivateIOUtils;
+import org.sonar.runner.bootstrapper.utils.PrivateIOUtils;
 
 import java.io.IOException;
 import java.io.InputStream;

src/test/java/org/sonar/runner/bootstrapper/BootstrapClassLoaderTest.java

 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
-import org.sonar.runner.bootstrapper.BootstrapClassLoader;
 
 import static org.fest.assertions.Assertions.assertThat;
 

src/test/java/org/sonar/runner/bootstrapper/BootstrapperTest.java

 package org.sonar.runner.bootstrapper;
 
 import org.junit.Test;
-import org.sonar.runner.bootstrapper.Bootstrapper;
 
 import java.io.File;
 import java.io.IOException;

src/test/java/org/sonar/runner/model/LauncherTest.java

  */
 package org.sonar.runner.model;
 
-import org.sonar.runner.Runner;
-
-import org.sonar.runner.model.Launcher;
-
 import org.apache.commons.configuration.BaseConfiguration;
 import org.apache.commons.configuration.Configuration;
 import org.junit.Test;
+import org.sonar.runner.Runner;
 
 import java.util.Properties;
 

src/test/java/org/sonar/runner/utils/SonarRunnerVersionTest.java

  */
 package org.sonar.runner.utils;
 
-import org.sonar.runner.utils.SonarRunnerVersion;
-
 import org.junit.Test;
 
 import static org.fest.assertions.Assertions.assertThat;