Fix getting primary groups for offline users

common/src/main/java/me/lucko/luckperms/common/constants/Message.java

@@ -409,7 +409,7 @@ public enum Message {
     private static String format(String s, Object... objects) {
         for (int i = 0; i < objects.length; i++) {
             Object o = objects[i];
-            s = s.replace("{" + i + "}", o.toString());
+            s = s.replace("{" + i + "}", String.valueOf(o));
         }
         return s;
     }

common/src/main/java/me/lucko/luckperms/common/contexts/ContextManager.java

@@ -39,6 +39,7 @@ import java.util.concurrent.TimeUnit;
 public class ContextManager<T> {
 
     private final List<ContextCalculator<T>> calculators = new CopyOnWriteArrayList<>();
+    private final List<ContextCalculator<?>> staticCalculators = new CopyOnWriteArrayList<>();
 
     private final LoadingCache<T, ContextSet> cache = Caffeine.newBuilder()
             .weakKeys()
@@ -61,6 +62,18 @@ public class ContextManager<T> {
         calculators.add(0, calculator);
     }
 
+    public void registerStaticCalculator(ContextCalculator<?> calculator) {
+        staticCalculators.add(0, calculator);
+    }
+
+    public ContextSet getStaticContexts() {
+        MutableContextSet accumulator = MutableContextSet.create();
+        for (ContextCalculator<?> calculator : staticCalculators) {
+            calculator.giveApplicableContext(null, accumulator);
+        }
+        return accumulator.makeImmutable();
+    }
+
     public int getCalculatorsSize() {
         return calculators.size();
     }

common/src/main/java/me/lucko/luckperms/common/primarygroup/AllParentsByWeightHolder.java

@@ -25,8 +25,11 @@
 
 package me.lucko.luckperms.common.primarygroup;
 
+import lombok.NonNull;
+
 import me.lucko.luckperms.api.Contexts;
 import me.lucko.luckperms.api.Node;
+import me.lucko.luckperms.api.context.ContextSet;
 import me.lucko.luckperms.common.core.model.Group;
 import me.lucko.luckperms.common.core.model.User;
 import me.lucko.luckperms.common.utils.ExtractedContexts;
@@ -40,7 +43,7 @@ public class AllParentsByWeightHolder extends StoredHolder {
     private String cachedValue = null;
     private boolean useCached = false;
 
-    public AllParentsByWeightHolder(User user) {
+    public AllParentsByWeightHolder(@NonNull User user) {
         super(user);
         user.getStateListeners().add(() -> useCached = false);
     }
@@ -52,7 +55,8 @@ public class AllParentsByWeightHolder extends StoredHolder {
         }
 
         Contexts contexts = user.getPlugin().getContextForUser(user);
-        cachedValue = user.resolveInheritancesAlmostEqual(ExtractedContexts.generate(contexts)).stream()
+        ContextSet contextSet = contexts != null ? contexts.getContexts() : user.getPlugin().getContextManager().getStaticContexts();
+        cachedValue = user.resolveInheritancesAlmostEqual(ExtractedContexts.generate(contextSet)).stream()
                 .filter(Node::isGroupNode)
                 .filter(Node::getValue)
                 .map(n -> Optional.ofNullable(user.getPlugin().getGroupManager().getIfLoaded(n.getGroupName())))

common/src/main/java/me/lucko/luckperms/common/primarygroup/ParentsByWeightHolder.java

@@ -25,8 +25,11 @@
 
 package me.lucko.luckperms.common.primarygroup;
 
+import lombok.NonNull;
+
 import me.lucko.luckperms.api.Contexts;
 import me.lucko.luckperms.api.Node;
+import me.lucko.luckperms.api.context.ContextSet;
 import me.lucko.luckperms.common.core.model.Group;
 import me.lucko.luckperms.common.core.model.User;
 
@@ -39,7 +42,7 @@ public class ParentsByWeightHolder extends StoredHolder {
     private String cachedValue = null;
     private boolean useCached = false;
 
-    public ParentsByWeightHolder(User user) {
+    public ParentsByWeightHolder(@NonNull User user) {
         super(user);
         user.getStateListeners().add(() -> useCached = false);
     }
@@ -51,7 +54,8 @@ public class ParentsByWeightHolder extends StoredHolder {
         }
 
         Contexts contexts = user.getPlugin().getContextForUser(user);
-        cachedValue = user.flattenAndMergeNodesToList(contexts.getContexts()).stream()
+        ContextSet contextSet = contexts != null ? contexts.getContexts() : user.getPlugin().getContextManager().getStaticContexts();
+        cachedValue = user.flattenAndMergeNodesToList(contextSet).stream()
                 .filter(Node::isGroupNode)
                 .filter(Node::getValue)
                 .map(n -> Optional.ofNullable(user.getPlugin().getGroupManager().getIfLoaded(n.getGroupName())))