diff --git a/oap-server/oal-rt/src/main/java/org/apache/skywalking/oal/rt/OALRuntime.java b/oap-server/oal-rt/src/main/java/org/apache/skywalking/oal/rt/OALRuntime.java
index d7217b85b730..0562d38ffe73 100644
--- a/oap-server/oal-rt/src/main/java/org/apache/skywalking/oal/rt/OALRuntime.java
+++ b/oap-server/oal-rt/src/main/java/org/apache/skywalking/oal/rt/OALRuntime.java
@@ -316,9 +316,6 @@ private void generateMetricsBuilderClass(AnalysisResult metricsStmt) throws OALC
             throw new OALCompileException(e.getMessage(), e);
         }
 
-        ClassFile metricsClassClassFile = metricsBuilderClass.getClassFile();
-        ConstPool constPool = metricsClassClassFile.getConstPool();
-
         /**
          * Create empty construct
          */