diff --git a/sentinel-core/src/main/java/com/alibaba/csp/sentinel/eagleeye/EagleEyeCoreUtils.java b/sentinel-core/src/main/java/com/alibaba/csp/sentinel/eagleeye/EagleEyeCoreUtils.java
index 8874f721..615c73b7 100755
--- a/sentinel-core/src/main/java/com/alibaba/csp/sentinel/eagleeye/EagleEyeCoreUtils.java
+++ b/sentinel-core/src/main/java/com/alibaba/csp/sentinel/eagleeye/EagleEyeCoreUtils.java
@@ -194,44 +194,4 @@ final class EagleEyeCoreUtils {
         }
     }
 
-    // Unsafe mechanics
-    @SuppressWarnings("restriction")
-    private static final sun.misc.Unsafe UNSAFE = doGetUnsafe();
-
-    @SuppressWarnings("restriction")
-    public static sun.misc.Unsafe getUnsafe() {
-        return UNSAFE;
-    }
-
-    /**
-     * Returns a sun.misc.Unsafe. Suitable for use in a 3rd party package.
-     * Replace with a simple call to Unsafe.getUnsafe when integrating into a
-     * jdk.
-     *
-     * @return a sun.misc.Unsafe
-     */
-    @SuppressWarnings("restriction")
-    private static sun.misc.Unsafe doGetUnsafe() {
-        try {
-            return sun.misc.Unsafe.getUnsafe();
-        } catch (Throwable tryReflectionInstead) {
-        }
-        try {
-            return java.security.AccessController
-                .doPrivileged(new java.security.PrivilegedExceptionAction<sun.misc.Unsafe>() {
-                    @Override
-                    public sun.misc.Unsafe run() throws Exception {
-                        Class<sun.misc.Unsafe> k = sun.misc.Unsafe.class;
-                        for (java.lang.reflect.Field f : k.getDeclaredFields()) {
-                            f.setAccessible(true);
-                            Object x = f.get(null);
-                            if (k.isInstance(x)) { return k.cast(x); }
-                        }
-                        throw new NoSuchFieldError("the Unsafe");
-                    }
-                });
-        } catch (Throwable t) {
-            return null;
-        }
-    }
 }