diff --git a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/job/AlgorithmAPI.java b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/job/AlgorithmAPI.java
index c965e02a56..b0e0d06925 100644
--- a/hugegraph-api/src/main/java/com/baidu/hugegraph/api/job/AlgorithmAPI.java
+++ b/hugegraph-api/src/main/java/com/baidu/hugegraph/api/job/AlgorithmAPI.java
@@ -21,15 +21,6 @@
 
 import java.util.Map;
 
-import javax.inject.Singleton;
-import javax.ws.rs.Consumes;
-import javax.ws.rs.NotFoundException;
-import javax.ws.rs.POST;
-import javax.ws.rs.Path;
-import javax.ws.rs.PathParam;
-import javax.ws.rs.Produces;
-import javax.ws.rs.core.Context;
-
 import org.slf4j.Logger;
 
 import com.baidu.hugegraph.HugeGraph;
@@ -46,6 +37,15 @@
 import com.codahale.metrics.annotation.Timed;
 import com.google.common.collect.ImmutableMap;
 
+import jakarta.inject.Singleton;
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.NotFoundException;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.Context;
+
 @Path("graphs/{graph}/jobs/algorithm")
 @Singleton
 public class AlgorithmAPI extends API {
diff --git a/hugegraph-core/src/main/java/com/baidu/hugegraph/job/algorithm/AbstractAlgorithm.java b/hugegraph-core/src/main/java/com/baidu/hugegraph/job/algorithm/AbstractAlgorithm.java
index 943debb4b8..dbe3f7e2b8 100644
--- a/hugegraph-core/src/main/java/com/baidu/hugegraph/job/algorithm/AbstractAlgorithm.java
+++ b/hugegraph-core/src/main/java/com/baidu/hugegraph/job/algorithm/AbstractAlgorithm.java
@@ -57,8 +57,7 @@
 import com.baidu.hugegraph.util.E;
 import com.baidu.hugegraph.util.JsonUtil;
 import com.baidu.hugegraph.util.ParameterUtil;
-
-import jersey.repackaged.com.google.common.base.Objects;
+import com.google.common.base.Objects;
 
 @SuppressWarnings("deprecation") // StringEscapeUtils
 public abstract class AbstractAlgorithm implements Algorithm {
@@ -382,9 +381,7 @@ protected Iterator<Vertex> vertices(Object label, long limit) {
             ConditionQuery query = new ConditionQuery(HugeType.VERTEX);
             query.capacity(Query.NO_CAPACITY);
             query.limit(limit);
-            if (label != null) {
-                query.eq(HugeKeys.LABEL, this.getVertexLabelId(label));
-            }
+            query.eq(HugeKeys.LABEL, this.getVertexLabelId(label));
             return this.graph().vertices(query);
         }
 
@@ -544,8 +541,8 @@ public JsonMap() {
             this(4 * (int) Bytes.KB);
         }
 
-        public JsonMap(int initCapaticy) {
-            this.json = new StringBuilder(initCapaticy);
+        public JsonMap(int initCapacity) {
+            this.json = new StringBuilder(initCapacity);
         }
 
         public void startObject() {
diff --git a/hugegraph-core/src/main/java/com/baidu/hugegraph/job/algorithm/SubgraphStatAlgorithm.java b/hugegraph-core/src/main/java/com/baidu/hugegraph/job/algorithm/SubgraphStatAlgorithm.java
index d91748e41e..4779905e00 100644
--- a/hugegraph-core/src/main/java/com/baidu/hugegraph/job/algorithm/SubgraphStatAlgorithm.java
+++ b/hugegraph-core/src/main/java/com/baidu/hugegraph/job/algorithm/SubgraphStatAlgorithm.java
@@ -22,7 +22,7 @@
 import java.util.Iterator;
 import java.util.Map;
 
-import org.apache.commons.configuration.PropertiesConfiguration;
+import org.apache.commons.configuration2.PropertiesConfiguration;
 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
 import org.apache.tinkerpop.gremlin.structure.Vertex;
 import org.slf4j.Logger;
@@ -90,7 +90,6 @@ private HugeGraph createTempGraph(UserJob<Object> job) {
         PropertiesConfiguration config = new PropertiesConfiguration();
         config.setProperty(CoreOptions.BACKEND.name(), "memory");
         config.setProperty(CoreOptions.STORE.name(), name);
-        config.setDelimiterParsingDisabled(true);
         /*
          * NOTE: this temp graph don't need to init backend because no task info
          * required, also not set started because no task to be scheduled.
@@ -129,12 +128,11 @@ protected static boolean copySchema(Map<String, Object> parameters) {
 
     private static class Traverser extends AlgoTraverser {
 
-        private static Map<String, Object> PARAMS = ImmutableMap.of(
-                                                    "depth", 10L,
-                                                    "degree", -1L,
-                                                    "sample", -1L,
-                                                    "top", -1L /* sorted */,
-                                                    "workers", 0);
+        private static final Map<String, Object> PARAMS = ImmutableMap.of("depth", 10L,
+                                                                          "degree", -1L,
+                                                                          "sample", -1L,
+                                                                          "top", -1L /* sorted */,
+                                                                          "workers", 0);
 
         public Traverser(UserJob<Object> job) {
             super(job);