Fix javadoc encoding

build.gradle

@@ -242,6 +242,7 @@ subprojects {
 
   tasks.withType(Javadoc) {
     options.addStringOption('Xdoclint:none', '-quiet')
+    options.encoding = 'UTF-8'
   }
 
   task sourcesJar(type: Jar, dependsOn: classes) {

sonar-plugin-api/src/main/java/org/sonar/api/server/debt/DebtRemediationFunction.java

@@ -48,7 +48,7 @@ public interface DebtRemediationFunction {
      * <p>
      * <code>Total remediation cost = base effort + (number of noncompliance x gap multiplier)</code>
      * 
-     * <p>The rule must provide the "gap" value when raising an issue. Let’s take as a example the “Paragraphs should not be too complex” rule.
+     * <p>The rule must provide the "gap" value when raising an issue. Let's take as a example the "Paragraphs should not be too complex" rule.
      * If you set the rule threshold to 20, and you have a paragraph with a complexity of 27, you have 7 points of complexity
      * to remove. Internally, this is called the Gap. In that case, if you use the LINEAR_OFFSET configuration
      * with an base effort of 4h and a remediation cost of 1mn, the effort for this issue related to a

sonar-plugin-api/src/main/java/org/sonar/api/server/ws/WebService.java

@@ -523,7 +523,7 @@ public interface WebService extends Definable<WebService.Context> {
       this.changelog = newAction.changelog;
 
       checkState(this.handler != null, "RequestHandler is not set on action %s", path);
-      logWarningIf(isNullOrEmpty(this.description), "Description is not set on action " + path);
+      logWarningIf(isNullOrEmpty(this.description), "Description is not set on action " + path);
       logWarningIf(isNullOrEmpty(this.since), "Since is not set on action " + path);
       logWarningIf(!this.post && this.responseExample == null, "The response example is not set on action " + path);
 

sonar-plugin-api/src/main/java/org/sonar/api/utils/log/Logger.java

@@ -32,7 +32,7 @@ import javax.annotation.Nullable;
  *
  *   public void doSomething() {
  *     LOGGER.info("something valuable for production environment");
- *     LOGGER.warn("message with arguments {} and {}", "foo", 42);
+ *     LOGGER.warn("message with arguments {} and {}", "foo", 42);
  *   }
  * }
  * </pre>