diff --git a/src/main/java/net/lamgc/oracle/sentry/oci/compute/ssh/PublicKeyAuthInfo.java b/src/main/java/net/lamgc/oracle/sentry/oci/compute/ssh/PublicKeyAuthInfo.java
index eed2c27..1c56ecc 100644
--- a/src/main/java/net/lamgc/oracle/sentry/oci/compute/ssh/PublicKeyAuthInfo.java
+++ b/src/main/java/net/lamgc/oracle/sentry/oci/compute/ssh/PublicKeyAuthInfo.java
@@ -1,9 +1,6 @@
 package net.lamgc.oracle.sentry.oci.compute.ssh;
 
-import org.apache.sshd.common.config.keys.FilePasswordProvider;
-
 import java.io.File;
-import java.security.KeyPair;
 
 /**
  * 公钥登录认证配置.
diff --git a/src/main/java/net/lamgc/oracle/sentry/oci/compute/ssh/SshAuthInfo.java b/src/main/java/net/lamgc/oracle/sentry/oci/compute/ssh/SshAuthInfo.java
index b453b98..bc97516 100644
--- a/src/main/java/net/lamgc/oracle/sentry/oci/compute/ssh/SshAuthInfo.java
+++ b/src/main/java/net/lamgc/oracle/sentry/oci/compute/ssh/SshAuthInfo.java
@@ -3,7 +3,6 @@ package net.lamgc.oracle.sentry.oci.compute.ssh;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.IOException;
 import java.security.PublicKey;
 
 /**
diff --git a/src/main/java/net/lamgc/oracle/sentry/script/groovy/GroovyTriggerProvider.java b/src/main/java/net/lamgc/oracle/sentry/script/groovy/GroovyTriggerProvider.java
index 56fabf3..52b5cd8 100644
--- a/src/main/java/net/lamgc/oracle/sentry/script/groovy/GroovyTriggerProvider.java
+++ b/src/main/java/net/lamgc/oracle/sentry/script/groovy/GroovyTriggerProvider.java
@@ -3,9 +3,7 @@ package net.lamgc.oracle.sentry.script.groovy;
 import com.google.common.base.Strings;
 import net.lamgc.oracle.sentry.script.groovy.trigger.GroovyTrigger;
 import net.lamgc.oracle.sentry.script.groovy.trigger.TriggerName;
-import org.springframework.scheduling.Trigger;
 
-import java.util.Locale;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.ServiceLoader;
diff --git a/src/main/java/net/lamgc/oracle/sentry/script/tools/http/HttpAccessResponse.java b/src/main/java/net/lamgc/oracle/sentry/script/tools/http/HttpAccessResponse.java
index 0cf0708..56bf626 100644
--- a/src/main/java/net/lamgc/oracle/sentry/script/tools/http/HttpAccessResponse.java
+++ b/src/main/java/net/lamgc/oracle/sentry/script/tools/http/HttpAccessResponse.java
@@ -6,7 +6,6 @@ import org.apache.http.HttpResponse;
 import org.apache.http.StatusLine;
 import org.apache.http.util.EntityUtils;
 
-import java.io.File;
 import java.io.IOException;
 import java.util.Locale;
 import java.util.Map;