diff --git a/http-api/pom.xml b/http-api/pom.xml
index 8941ca7970..ccd886a376 100644
--- a/http-api/pom.xml
+++ b/http-api/pom.xml
@@ -40,7 +40,6 @@
 		<maven.git.commit.id.version>2.2.6</maven.git.commit.id.version>
 
 		<git.commit.id.abbrev>nogit</git.commit.id.abbrev>
-		<project.build.java.target>1.7</project.build.java.target>
 		<git.dirty>false</git.dirty>
 	</properties>
 
@@ -115,39 +114,5 @@
 				</executions>
 			</plugin>
 		</plugins>
-		<pluginManagement>
-			<plugins>
-				<plugin>
-					<groupId>io.takari.maven.plugins</groupId>
-					<artifactId>takari-lifecycle-plugin</artifactId>
-					<version>${maven.takari-lifecycle-plugin.verson}</version>
-					<executions>
-						<execution>
-							<id>compile</id>
-							<goals>
-								<goal>compile</goal>
-							</goals>
-							<phase>compile</phase>
-							<configuration>
-								<source>8</source>
-								<proc>proc</proc>
-								<!-- or "javac" to use javac java compiler -->
-								<compilerId>jdt</compilerId>
-							</configuration>
-						</execution>
-					</executions>
-				</plugin>
-				<plugin>
-					<groupId>org.apache.maven.plugins</groupId>
-					<artifactId>maven-compiler-plugin</artifactId>
-					<version>${maven.compiler.plugin.version}</version>
-					<configuration>
-						<!-- disable maven-compiler-plugin -->
-						<skipMain>true</skipMain>
-						<skip>true</skip>
-					</configuration>
-				</plugin>
-			</plugins>
-		</pluginManagement>
 	</build>
 </project>
diff --git a/pom.xml b/pom.xml
index 27b8245644..057d2088d2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -38,7 +38,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<java.version>1.8</java.version>
-		<lombok.version>1.18.8</lombok.version>
+		<lombok.version>1.18.4</lombok.version>
 		<checkstyle.version>8.3</checkstyle.version>
 		<logback.version>1.2.3</logback.version>
 		<gson.version>2.8.5</gson.version>
@@ -353,7 +353,7 @@
 								<target>${java.version}</target>
 								<proc>proc</proc>
 								<!-- or "javac" to use javac java compiler -->
-								<compilerId>jdt</compilerId>
+								<compilerId>javac</compilerId>
 							</configuration>
 						</execution>
 					</executions>