Make sure each cycle for cache control is finished before starting the next

V1_16/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_16</artifactId>

V1_16_2/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_16_2</artifactId>

V1_16_4/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_16_4</artifactId>

V1_17/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_17</artifactId>

V1_18/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_18</artifactId>

V1_18_2/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_18_2</artifactId>

V1_19/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_19</artifactId>

V1_19_3/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_19_3</artifactId>

V1_19_4/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_19_4</artifactId>

V1_20/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_20</artifactId>

V1_20_2/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_20_2</artifactId>

V1_20_3/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_20_3</artifactId>

V1_20_5/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_20_5</artifactId>

V1_20_6/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_20_6</artifactId>

V1_21/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_21</artifactId>

V1_21_1/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_21_1</artifactId>

V1_21_2/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_21_2</artifactId>

V1_21_3/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_21_3</artifactId>

V1_21_4/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-V1_21_4</artifactId>

abstraction/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>com.loohp</groupId>
         <artifactId>ImageFrame-Parent</artifactId>
-        <version>1.7.14.6</version>
+        <version>1.7.14.7</version>
     </parent>
 
     <artifactId>ImageFrame-Abstraction</artifactId>

common/pom.xml

@@ -26,7 +26,7 @@
 
     <groupId>com.loohp</groupId>
     <artifactId>ImageFrame</artifactId>
-    <version>1.7.14.6</version>
+    <version>1.7.14.7</version>
     <packaging>jar</packaging>
 
     <name>ImageFrame</name>

common/src/main/java/com/loohp/imageframe/objectholders/ImageMap.java

@@ -126,17 +126,17 @@ public abstract class ImageMap {
         return manager;
     }
 
-    public abstract void loadColorCache();
+    protected abstract void loadColorCache();
 
-    public void reloadColorCache() {
+    protected void reloadColorCache() {
         if (hasColorCached()) {
             loadColorCache();
         }
     }
 
-    public abstract boolean hasColorCached();
+    protected abstract boolean hasColorCached();
 
-    public abstract void unloadColorCache();
+    protected abstract void unloadColorCache();
 
     public int getImageIndex() {
         return imageIndex;

common/src/main/java/com/loohp/imageframe/objectholders/ImageMapCacheControlTask.java

@@ -22,21 +22,26 @@ package com.loohp.imageframe.objectholders;
 
 import com.loohp.imageframe.ImageFrame;
 
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicReference;
+
 public class ImageMapCacheControlTask implements Runnable, AutoCloseable {
     
     private final ImageMap imageMap;
 
-    private int noViewerCounts;
-    private boolean locked;
+    private final AtomicBoolean locked;
+    private final AtomicBoolean closed;
 
-    private final Scheduler.ScheduledTask task;
+    private final AtomicReference<Scheduler.ScheduledTask> task;
+    private final AtomicInteger noViewerCounts;
 
     public ImageMapCacheControlTask(ImageMap imageMap) {
         this.imageMap = imageMap;
-        this.noViewerCounts = 0;
-        this.locked = false;
-
-        this.task = Scheduler.runTaskTimerAsynchronously(ImageFrame.plugin, this, 0, 1);
+        this.noViewerCounts = new AtomicInteger(0);
+        this.locked = new AtomicBoolean(false);
+        this.closed = new AtomicBoolean(false);
+        this.task = new AtomicReference<>(Scheduler.runTaskLaterAsynchronously(ImageFrame.plugin, this, 5));
     }
 
     public ImageMap getImageMap() {
@@ -44,32 +49,41 @@ public class ImageMapCacheControlTask implements Runnable, AutoCloseable {
     }
 
     public boolean isLocked() {
-        return locked;
+        return locked.get();
     }
 
     public void setLocked(boolean locked) {
-        this.locked = locked;
+        this.locked.set(locked);
     }
 
     @Override
     public void run() {
-        if (locked) {
+        if (closed.get()) {
             return;
         }
-        if (imageMap.hasViewers()) {
-            noViewerCounts = 0;
-            if (!imageMap.hasColorCached()) {
-                imageMap.loadColorCache();
-            }
-        } else {
-            if (noViewerCounts++ > 200 && imageMap.hasColorCached()) {
-                imageMap.unloadColorCache();
+        if (!locked.get()) {
+            if (imageMap.hasViewers()) {
+                noViewerCounts.set(0);
+                if (!imageMap.hasColorCached()) {
+                    imageMap.loadColorCache();
+                }
+            } else {
+                if (noViewerCounts.getAndIncrement() > 200 && imageMap.hasColorCached()) {
+                    imageMap.unloadColorCache();
+                }
             }
         }
+        this.task.set(Scheduler.runTaskLaterAsynchronously(ImageFrame.plugin, this, 5));
     }
 
     @Override
     public void close() {
-        task.cancel();
+        closed.set(true);
+        task.updateAndGet(t -> {
+            if (t != null) {
+                t.cancel();
+            }
+            return t;
+        });
     }
 }

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.loohp</groupId>
     <artifactId>ImageFrame-Parent</artifactId>
-    <version>1.7.14.6</version>
+    <version>1.7.14.7</version>
     <packaging>pom</packaging>
 
     <properties>