Fix some quality fixes

Author: adrienlauer

checkstyle.xml

@@ -23,6 +23,11 @@
         <property name="eachLine" value="true"/>
     </module>
 
+    <module name="LineLength">
+        <property name="max" value="120"/>
+        <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>
+    </module>
+
     <module name="TreeWalker">
         <module name="OuterTypeFilename"/>
         <module name="IllegalTokenText">
@@ -37,10 +42,6 @@
             <property name="allowByTailComment" value="true"/>
             <property name="allowNonPrintableEscapes" value="true"/>
         </module>
-        <module name="LineLength">
-            <property name="max" value="120"/>
-            <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>
-        </module>
         <module name="AvoidStarImport"/>
         <module name="OneTopLevelClass"/>
         <module name="NoLineWrap"/>
@@ -205,24 +206,22 @@
         </module>
         <module name="NonEmptyAtclauseDescription"/>
         <module name="JavadocTagContinuationIndentation"/>
-        <!--<module name="SummaryJavadoc">-->
-            <!--<property name="forbiddenSummaryFragments"-->
-                      <!--value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )"/>-->
-        <!--</module>-->
+        <module name="SummaryJavadoc">
+            <property name="forbiddenSummaryFragments"
+                      value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )"/>
+        </module>
         <module name="JavadocParagraph"/>
         <module name="AtclauseOrder">
             <property name="tagOrder" value="@param, @return, @throws, @deprecated"/>
             <property name="target" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/>
         </module>
-        <module name="JavadocMethod">
-            <property name="scope" value="public"/>
-            <property name="allowMissingParamTags" value="true"/>
-            <property name="allowMissingThrowsTags" value="true"/>
-            <property name="allowMissingReturnTag" value="true"/>
+        <module name="MissingJavadocMethodCheck">
             <property name="allowMissingPropertyJavadoc" value="true"/>
             <property name="minLineCount" value="2"/>
+        </module>
+        <module name="JavadocMethod">
+            <property name="scope" value="public"/>
             <property name="allowedAnnotations" value="Override, Test"/>
-            <property name="allowThrowsTagsForSubclasses" value="true"/>
         </module>
         <module name="MethodName">
             <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9_]*$"/>

core/src/main/java/org/seedstack/seed/core/Seed.java

@@ -10,6 +10,7 @@
 
 import com.google.common.base.Strings;
 import com.google.common.collect.Lists;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import io.nuun.kernel.api.Kernel;
 import io.nuun.kernel.api.config.KernelConfiguration;
 import org.fusesource.jansi.Ansi;
@@ -191,6 +192,7 @@ static void markLifecycleExceptionHandlerEnabled() {
      *
      * @param args The launch arguments.
      */
+    @SuppressFBWarnings(value = "DM_EXIT", justification = "This is the entry point of the framework, to be used from main methods")
     public static void launch(String[] args) {
         try {
             final SeedLauncher seedLauncher;

core/src/main/java/org/seedstack/seed/core/internal/CoreModule.java

@@ -42,11 +42,19 @@ protected void configure() {
     }
 
     private <T> Matcher<T> createMatcherFromPredicate(Predicate<T> predicate) {
-        return new AbstractMatcher<T>() {
-            @Override
-            public boolean matches(T t) {
-                return predicate.test(t);
-            }
-        };
+        return new PredicateToMatcher<>(predicate);
+    }
+
+    private static class PredicateToMatcher<T> extends AbstractMatcher<T> {
+        private final Predicate<T> predicate;
+
+        public PredicateToMatcher(Predicate<T> predicate) {
+            this.predicate = predicate;
+        }
+
+        @Override
+        public boolean matches(T t) {
+            return predicate.test(t);
+        }
     }
 }

core/src/main/java/org/seedstack/seed/core/internal/configuration/AvailablePortFunctionHolder.java

@@ -27,25 +27,21 @@ public class AvailablePortFunctionHolder implements ConfigFunctionHolder {
     @ConfigFunction
     int availableTcpPort(String name) {
         return TCP_PORTS.computeIfAbsent(name, n -> {
-            synchronized (TCP_PORTS) {
-                for (int i = PORT_RANGE_MIN; i <= PORT_RANGE_MAX; i++) {
-                    if (isTcpPortAvailable(i)) {
-                        return i;
-                    }
+            for (int i = PORT_RANGE_MIN; i <= PORT_RANGE_MAX; i++) {
+                if (isTcpPortAvailable(i)) {
+                    return i;
                 }
-                throw new IllegalStateException("Unable to find an available TCP port in range " + PORT_RANGE_MIN + "-" + PORT_RANGE_MAX);
             }
+            throw new IllegalStateException("Unable to find an available TCP port in range " + PORT_RANGE_MIN + "-" + PORT_RANGE_MAX);
         });
     }
 
     @ConfigFunction
     int availableUdpPort(String name) {
         return UDP_PORTS.computeIfAbsent(name, n -> {
-            synchronized (UDP_PORTS) {
-                for (int i = PORT_RANGE_MIN; i <= PORT_RANGE_MAX; i++) {
-                    if (isUdpPortAvailable(i)) {
-                        return i;
-                    }
+            for (int i = PORT_RANGE_MIN; i <= PORT_RANGE_MAX; i++) {
+                if (isUdpPortAvailable(i)) {
+                    return i;
                 }
             }
             throw new IllegalStateException("Unable to find an available UDP port in range " + PORT_RANGE_MIN + "-" + PORT_RANGE_MAX);

specs/src/main/java/org/seedstack/seed/ClassConfiguration.java

@@ -7,6 +7,8 @@
  */
 package org.seedstack.seed;
 
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+
 import java.util.*;
 import java.util.function.BiConsumer;
 
@@ -112,6 +114,7 @@ public String get(String key) {
      * @param key the key to retrieve the value of.
      * @return the split value or null.
      */
+    @SuppressFBWarnings(value = "PZLA_PREFER_ZERO_LENGTH_ARRAYS", justification = "Null value denotes absence of key which is a valid use case")
     public String[] getArray(String key) {
         String s = map.get(key);
         if (s == null) {