SQSCANNER-23 Support the new 'MessageException' unchecked exception and log by default the error stack trace only when a non-MessageException is thrown

src/main/java/org/sonarsource/scanner/cli/Cli.java

         props.setProperty("sonar.verbose", "true");
         debugEnabled = true;
         logger.setDebugEnabled(true);
-        logger.setDisplayStackTrace(true);
 
       } else if ("-D".equals(arg) || "--define".equals(arg)) {
         i++;

src/main/java/org/sonarsource/scanner/cli/Logs.java

 public class Logs {
   private DateTimeFormatter timeFormatter;
   private boolean debugEnabled = false;
-  private boolean displayStackTrace = false;
   private PrintStream stdOut;
   private PrintStream stdErr;
 
     this.debugEnabled = debugEnabled;
   }
 
-  public void setDisplayStackTrace(boolean displayStackTrace) {
-    this.displayStackTrace = displayStackTrace;
-  }
-
   public boolean isDebugEnabled() {
     return debugEnabled;
   }
 
   public void error(String message, Throwable t) {
     print(stdErr, "ERROR: " + message);
-    if (t != null && displayStackTrace) {
+    if (t != null) {
       t.printStackTrace(stdErr);
     }
   }

src/main/java/org/sonarsource/scanner/cli/Main.java

       || "DEBUG".equalsIgnoreCase(props.getProperty("sonar.log.level"))
       || "TRACE".equalsIgnoreCase(props.getProperty("sonar.log.level"))) {
       logger.setDebugEnabled(true);
-      logger.setDisplayStackTrace(true);
     }
   }
 

src/test/java/org/sonarsource/scanner/cli/LogsTest.java

   @Test
   public void testError() {
     Exception e = new NullPointerException("exception");
-    logs.setDisplayStackTrace(false);
     logs.error("error1");
     verify(stdErr).println("ERROR: error1");
 
     logs.error("error2", e);
     verify(stdErr).println("ERROR: error2");
-
-    verifyNoMoreInteractions(stdOut, stdErr);
-
-    logs.setDisplayStackTrace(true);
-    logs.error("error3", e);
-    verify(stdErr).println("ERROR: error3");
+    verify(stdErr).println(e);
     // other interactions to print the exception..
   }
 

src/test/java/org/sonarsource/scanner/cli/MainTest.java

 
     // Logger used for callback should have debug enabled
     verify(logs).setDebugEnabled(true);
-    verify(logs).setDisplayStackTrace(true);
 
     ArgumentCaptor<Properties> propertiesCapture = ArgumentCaptor.forClass(Properties.class);
     verify(runner).runAnalysis(propertiesCapture.capture());