Add synchronized keyword to various methods

base/src/main/java/de/staropensource/sosengine/base/Engine.java

@@ -343,7 +343,7 @@ public final class Engine implements SubsystemMainClass {
      * @param exitCode code to exit with, from 0-255
      * @since 1-alpha0
      */
-    public void shutdown(@Range(from = 0, to = 255) int exitCode) {
+    public synchronized void shutdown(@Range(from = 0, to = 255) int exitCode) {
         logger.info("Shutting engine down");
         shuttingDown = true;
 
@@ -379,7 +379,7 @@ public final class Engine implements SubsystemMainClass {
      *
      * @since 1-alpha0
      */
-    public void shutdown() {
+    public synchronized void shutdown() {
         shutdown(0);
     }
 }

base/src/main/java/de/staropensource/sosengine/base/EngineConfiguration.java

@@ -271,7 +271,7 @@ public final class EngineConfiguration implements SubsystemConfiguration {
     }
 
     /** {@inheritDoc} */
-    public void loadConfiguration(@NotNull Properties properties) {
+    public synchronized void loadConfiguration(@NotNull Properties properties) {
         // Define variables
         PropertyParser parser = new PropertyParser(properties);
 
@@ -318,12 +318,12 @@ public final class EngineConfiguration implements SubsystemConfiguration {
     }
 
     /** {@inheritDoc} */
-    public void loadConfiguration() {
+    public synchronized void loadConfiguration() {
         loadConfiguration(System.getProperties());
     }
 
     /** {@inheritDoc} */
-    public void loadDefaultConfiguration() {
+    public synchronized void loadDefaultConfiguration() {
         debug = false;
         debugEvents = false;
         debugShortcodeConverter = false;

base/src/main/java/de/staropensource/sosengine/base/classes/helpers/EventHelper.java

@@ -158,7 +158,7 @@ public class EventHelper {
      * @param clazz event listeners to (p)recompute, set to {@code null} to recompute all cached events
      * @since 1-alpha0
      */
-    public static void precomputeEventListeners(@Nullable Class<? extends Event> clazz) {
+    public static synchronized void precomputeEventListeners(@Nullable Class<? extends Event> clazz) {
         if (clazz == null)
             for (Class<? extends Event> event : cachedEventListeners.keySet())
                 precomputeEventListeners(event);
@@ -178,7 +178,7 @@ public class EventHelper {
      * @param clazz event class to remove cached event listeners for or {@code null} to remove all cached event listeners
      * @since 1-alpha0
      */
-    public static void removePrecomputedEventListeners(@Nullable Class<? extends Event> clazz) {
+    public static synchronized void removePrecomputedEventListeners(@Nullable Class<? extends Event> clazz) {
         if (clazz == null)
             cachedEventListeners.clear();
         else

base/src/main/java/de/staropensource/sosengine/base/data/info/EngineInformation.java

@@ -366,7 +366,7 @@ public final class EngineInformation {
      *
      * @since 1-alpha1
      */
-    public static void updateVariables() {
+    public static synchronized void updateVariables() {
         LoggerInstance logger = new LoggerInstance(new LogIssuer(EngineInformation.class, CodePart.ENGINE));
 
         // Load properties from bundled gradle.properties

base/src/main/java/de/staropensource/sosengine/base/logging/CrashHandler.java

@@ -109,7 +109,7 @@ public final class CrashHandler {
      * @param throwable simply to provide stacktrace and further insight into the crash, can be set to {@code null}
      * @since 1-alpha0
      */
-    public static void handleCrash(@NotNull LogIssuer logIssuer, @NotNull String message, @Nullable Throwable throwable) {
+    public static synchronized void handleCrash(@NotNull LogIssuer logIssuer, @NotNull String message, @Nullable Throwable throwable) {
         String base = crashTemplate;
 
         // Replace '%content%' with crash content
@@ -170,7 +170,7 @@ public final class CrashHandler {
       *       But hey, if someone breaks this method (which may be possible idk didn't test it) then congrats!
       */
     @NotNull
-    private static String processCrashContent(@NotNull LinkedHashMap<Object, Object> map, int indentationSize) {
+    private static synchronized String processCrashContent(@NotNull LinkedHashMap<Object, Object> map, int indentationSize) {
         StringBuilder content = new StringBuilder();
 
         for (Object key : map.keySet()) {
@@ -217,7 +217,7 @@ public final class CrashHandler {
      * @return crash content string
      * @since 1-alpha0
      */
-    public static String processCrashContent() {
+    public static synchronized String processCrashContent() {
         return processCrashContent(crashContent, 0);
     }
 }

base/src/main/java/de/staropensource/sosengine/base/logging/Logger.java

@@ -177,10 +177,6 @@ public final class Logger {
      * @since 1-alpha1
      */
     private static void processLogMessage(@NotNull LogIssuer issuer, @NotNull LogLevel level, @NotNull String message) {
-        // Check if level is allowed
-        if (level.compareTo(EngineConfiguration.getInstance().getLoggerLevel()) < 0)
-            return;
-
         // Evaluate all active rules
         for (LogRule rule : activeRules) {
             if (rule.evaluate(issuer, level, message)) {
@@ -234,6 +230,10 @@ public final class Logger {
         // Check if engine has initialized
         if (Engine.getInstance() == null) return;
 
+        // Dismiss if level is not allowed
+        if (level.compareTo(EngineConfiguration.getInstance().getLoggerLevel()) < 0)
+            return;
+
         if (EngineConfiguration.getInstance().isOptimizeLogging())
             // Optimizations enabled, add to message queue
             queuedMessages.add(new QueuedLogMessage(issuer, level, message));

base/src/main/java/de/staropensource/sosengine/base/utility/DependencyResolver.java

@@ -69,7 +69,7 @@ public final class DependencyResolver {
      * @return itself
      * @since 1-alpha1
      */
-    public DependencyResolver addVector(@NotNull DependencyVector vector) {
+    public synchronized DependencyResolver addVector(@NotNull DependencyVector vector) {
         vectors.add(vector);
         resolved = false;
         return this;
@@ -82,7 +82,7 @@ public final class DependencyResolver {
      * @return itself
      * @since 1-alpha1
      */
-    public DependencyResolver addVectors(@NotNull DependencyVector[] vectors) {
+    public synchronized DependencyResolver addVectors(@NotNull DependencyVector[] vectors) {
         addVectors(Arrays.stream(vectors).toList());
         resolved = false;
         return this;
@@ -95,7 +95,7 @@ public final class DependencyResolver {
      * @return itself
      * @since 1-alpha1
      */
-    public DependencyResolver addVectors(@NotNull Collection<? extends @NotNull DependencyVector> vectors) {
+    public synchronized DependencyResolver addVectors(@NotNull Collection<? extends @NotNull DependencyVector> vectors) {
         this.vectors.addAll(vectors);
         resolved = false;
         return this;
@@ -108,7 +108,7 @@ public final class DependencyResolver {
      * @return itself
      * @since 1-alpha1
      */
-    public DependencyResolver addVectors(@NotNull List<? extends @NotNull DependencyVector> vectors) {
+    public synchronized DependencyResolver addVectors(@NotNull List<? extends @NotNull DependencyVector> vectors) {
         this.vectors.addAll(vectors);
         resolved = false;
         return this;
@@ -121,7 +121,7 @@ public final class DependencyResolver {
      * @return itself
      * @since 1-alpha1
      */
-    public DependencyResolver addVectors(@NotNull ImmutableArrayList<? extends @NotNull DependencyVector> vectors) {
+    public synchronized DependencyResolver addVectors(@NotNull ImmutableArrayList<? extends @NotNull DependencyVector> vectors) {
         this.vectors.addAll(vectors);
         resolved = false;
         return this;
@@ -134,7 +134,7 @@ public final class DependencyResolver {
      * @return itself
      * @since 1-alpha1
      */
-    public DependencyResolver addVectors(@NotNull ImmutableLinkedList<? extends @NotNull DependencyVector> vectors) {
+    public synchronized DependencyResolver addVectors(@NotNull ImmutableLinkedList<? extends @NotNull DependencyVector> vectors) {
         this.vectors.addAll(vectors);
         resolved = false;
         return this;
@@ -147,7 +147,7 @@ public final class DependencyResolver {
      * @return itself
      * @since 1-alpha1
      */
-    public DependencyResolver addVectors(@NotNull Set<? extends @NotNull DependencyVector> vectors) {
+    public synchronized DependencyResolver addVectors(@NotNull Set<? extends @NotNull DependencyVector> vectors) {
         this.vectors.addAll(vectors);
         resolved = false;
         return this;
@@ -163,7 +163,7 @@ public final class DependencyResolver {
      * @since 1-alpha1
      */
     @SuppressWarnings("JavaReflectionInvocation")
-    public DependencyResolver resolve() throws UnmetDependenciesException, UnexpectedThrowableException {
+    public synchronized DependencyResolver resolve() throws UnmetDependenciesException, UnexpectedThrowableException {
         Map<DependencyVector, String> unmetDependencies = new HashMap<>();
         resolved = false;