diff --git a/scavenger-agent-java/src/main/java/com/navercorp/scavenger/javaagent/collecting/MethodRegistry.java b/scavenger-agent-java/src/main/java/com/navercorp/scavenger/javaagent/collecting/MethodRegistry.java
index dab8e59d..a6990cf7 100644
--- a/scavenger-agent-java/src/main/java/com/navercorp/scavenger/javaagent/collecting/MethodRegistry.java
+++ b/scavenger-agent-java/src/main/java/com/navercorp/scavenger/javaagent/collecting/MethodRegistry.java
@@ -7,7 +7,6 @@
 import lombok.Getter;
 
 import com.navercorp.scavenger.util.HashGenerator;
-import com.navercorp.scavenger.util.Signatures;
 
 public class MethodRegistry {
     public static final String SYNTHETIC_SIGNATURE_HASH = "";
@@ -15,11 +14,13 @@ public class MethodRegistry {
     @Getter
     private final Map<String, String> byteBuddySignatureToHash = new ConcurrentHashMap<>();
 
+    private static final Pattern SYNTHETIC_SIGNATURE_PATTERN = Pattern.compile(".*\\$\\$(Enhancer|FastClass)BySpringCGLIB\\$\\$.*");
+
     public String getHash(String byteBuddySignature, boolean legacyCompatibilityMode) {
         String hash = this.byteBuddySignatureToHash.get(byteBuddySignature);
 
         if (hash == null) {
-            if (Signatures.containsSyntheticPattern(byteBuddySignature)) {
+            if (SYNTHETIC_SIGNATURE_PATTERN.matcher(byteBuddySignature).matches()) {
                 hash = SYNTHETIC_SIGNATURE_HASH;
             } else {
                 String signature = extractSignature(byteBuddySignature);
diff --git a/scavenger-collector/src/main/kotlin/com/navercorp/scavenger/model/Publication.kt b/scavenger-collector/src/main/kotlin/com/navercorp/scavenger/model/Publication.kt
index bd95a7d1..87e5969f 100644
--- a/scavenger-collector/src/main/kotlin/com/navercorp/scavenger/model/Publication.kt
+++ b/scavenger-collector/src/main/kotlin/com/navercorp/scavenger/model/Publication.kt
@@ -6,12 +6,12 @@ import com.navercorp.scavenger.dto.CommonImportResultDto
 import com.navercorp.scavenger.dto.InvocationImportDto
 import com.navercorp.scavenger.exception.UnknownPublicationException
 import com.navercorp.scavenger.util.HashGenerator
-import com.navercorp.scavenger.util.Signatures
 import io.codekvast.javaagent.model.v4.CodeBasePublication4
 import io.codekvast.javaagent.model.v4.CommonPublicationData4
 import io.codekvast.javaagent.model.v4.InvocationDataPublication4
 import java.io.InputStream
 import java.io.ObjectInputStream
+import java.util.regex.Pattern
 
 sealed interface Publication {
     fun getCommonImportDto(customerId: Long): CommonImportDto
@@ -107,7 +107,7 @@ sealed class LegacyPublication private constructor(val commonData: CommonPublica
         override fun getCodeBaseImportDto(commonImportResultDto: CommonImportResultDto): CodeBaseImportDto =
             with(commonImportResultDto) {
                 val entries = pub.entries
-                    .filterNot { Signatures.containsSyntheticPattern(it.signature) }
+                    .filterNot { syntheticSignaturePattern.matcher(it.signature).matches() }
                     .map {
                         CodeBaseImportDto.CodeBaseEntry(
                             declaringType = it.methodSignature.declaringType,
@@ -140,13 +140,17 @@ sealed class LegacyPublication private constructor(val commonData: CommonPublica
                     applicationId = applicationId,
                     environmentId = environmentId,
                     invocations = pub.invocations
-                        .filterNot { Signatures.containsSyntheticPattern(it) }
+                        .filterNot { syntheticSignaturePattern.matcher(it).matches() }
                         .map { HashGenerator.Md5.from(it) }
                         .sorted(),
                     invokedAtMillis = pub.recordingIntervalStartedAtMillis,
                 )
             }
     }
+
+    companion object {
+        val syntheticSignaturePattern: Pattern = Pattern.compile(".*\\.\\.(Enhancer|FastClass)BySpringCGLIB\\.\\..*")
+    }
 }
 
 fun InputStream.toLegacyPublication(): LegacyPublication {
diff --git a/scavenger-model/build.gradle.kts b/scavenger-model/build.gradle.kts
index 94be0519..55daaf3f 100644
--- a/scavenger-model/build.gradle.kts
+++ b/scavenger-model/build.gradle.kts
@@ -22,10 +22,6 @@ dependencies {
     implementation("io.grpc:grpc-kotlin-stub:${property("grpcKotlinVersion")}")
     implementation("io.grpc:grpc-protobuf:${property("grpcVersion")}")
     implementation("javax.annotation:javax.annotation-api:1.3.2")
-
-    testImplementation("org.junit.jupiter:junit-jupiter-api:5.7.2")
-    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.7.2")
-    testImplementation("org.assertj:assertj-core:3.22.0")
 }
 
 tasks.withType<JavaCompile> {
diff --git a/scavenger-model/src/main/java/com/navercorp/scavenger/util/Signatures.java b/scavenger-model/src/main/java/com/navercorp/scavenger/util/Signatures.java
deleted file mode 100644
index 29d24f56..00000000
--- a/scavenger-model/src/main/java/com/navercorp/scavenger/util/Signatures.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package com.navercorp.scavenger.util;
-
-import java.util.regex.Pattern;
-
-public final class Signatures {
-
-    private static final Pattern SYNTHETIC_SIGNATURE_PATTERN = Pattern.compile(".*\\$\\$(Enhancer|FastClass)BySpringCGLIB\\$\\$.*");
-
-    private Signatures() {
-        // utility class
-    }
-
-    public static boolean containsSyntheticPattern(String signature) {
-        return SYNTHETIC_SIGNATURE_PATTERN.matcher(signature).matches();
-    }
-}
diff --git a/scavenger-model/src/test/java/com/navercorp/scavenger/util/SignaturesTest.java b/scavenger-model/src/test/java/com/navercorp/scavenger/util/SignaturesTest.java
deleted file mode 100644
index e0c5b9df..00000000
--- a/scavenger-model/src/test/java/com/navercorp/scavenger/util/SignaturesTest.java
+++ /dev/null
@@ -1,44 +0,0 @@
-package com.navercorp.scavenger.util;
-
-import static org.assertj.core.api.Assertions.assertThat;
-
-import org.junit.jupiter.api.Test;
-
-class SignaturesTest {
-
-    @Test
-    void returnsTrueIfSignatureContainsEnhancerBySpringCGLIB() {
-        // given
-        String signature = "TestClass$$EnhancerBySpringCGLIB$$hash.testMethod()";
-
-        // when
-        boolean actual = Signatures.containsSyntheticPattern(signature);
-
-        // then
-        assertThat(actual).isTrue();
-    }
-
-    @Test
-    void returnsTrueIfSignatureContainsFastClassBySpringCGLIB() {
-        // given
-        String signature = "TestClass$$FastClassBySpringCGLIB$$hash.testMethod()";
-
-        // when
-        boolean actual = Signatures.containsSyntheticPattern(signature);
-
-        // then
-        assertThat(actual).isTrue();
-    }
-
-    @Test
-    void returnsFalseIfDoesNotContainsPattern() {
-        // given
-        String signature = "TestClass$hash.testMethod()";
-
-        // when
-        boolean actual = Signatures.containsSyntheticPattern(signature);
-
-        // then
-        assertThat(actual).isFalse();
-    }
-}