fix(get): 修复获取首个Manager会出现报错的问题

Author: CarmJos

api/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>minesql-parent</artifactId>
         <groupId>cc.carm.plugin</groupId>
-        <version>1.2.1</version>
+        <version>1.2.2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 

core/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>minesql-parent</artifactId>
         <groupId>cc.carm.plugin</groupId>
-        <version>1.2.1</version>
+        <version>1.2.2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <properties>

core/src/main/java/cc/carm/plugin/minesql/MineSQLRegistry.java

@@ -21,7 +21,9 @@ protected HashMap<String, SQLManager> getManagers() {
 
     @Override
     public @NotNull Optional<@Nullable SQLManager> getOptional(@Nullable String id) {
-        return Optional.of(this.managers.get(id));
+        if (id != null) return Optional.of(this.managers.get(id));
+        else if (managers.isEmpty()) return Optional.empty();
+        else return Optional.ofNullable(managers.values().iterator().next());
     }
 
     @Override

platforms/bukkit/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>minesql-parent</artifactId>
         <groupId>cc.carm.plugin</groupId>
-        <version>1.2.1</version>
+        <version>1.2.2</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>

platforms/bungee/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>minesql-parent</artifactId>
         <groupId>cc.carm.plugin</groupId>
-        <version>1.2.1</version>
+        <version>1.2.2</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>

platforms/velocity/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>minesql-parent</artifactId>
         <groupId>cc.carm.plugin</groupId>
-        <version>1.2.1</version>
+        <version>1.2.2</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>

plugin/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <artifactId>minesql-parent</artifactId>
         <groupId>cc.carm.plugin</groupId>
-        <version>1.2.1</version>
+        <version>1.2.2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <properties>

pom.xml

@@ -24,7 +24,7 @@
     <groupId>cc.carm.plugin</groupId>
     <artifactId>minesql-parent</artifactId>
     <packaging>pom</packaging>
-    <version>1.2.1</version>
+    <version>1.2.2</version>
     <modules>
         <module>api</module>
         <module>core</module>