Upgrade carts service to java 18

Dockerfile

@@ -1,4 +1,4 @@
-FROM java:openjdk-8-alpine
+FROM openjdk:18-alpine
 
 WORKDIR /usr/src/app
 COPY ./target/*.jar ./app.jar

docker/carts/Dockerfile

@@ -1,24 +1,9 @@
-FROM weaveworksdemos/msd-java:jre-latest
+FROM openjdk:18-jdk-alpine
 
 WORKDIR /usr/src/app
 COPY *.jar ./app.jar
 
-RUN	chown -R ${SERVICE_USER}:${SERVICE_GROUP} ./app.jar
+RUN chown -R root:root ./app.jar
 
-USER ${SERVICE_USER}
-
-ARG BUILD_DATE
-ARG BUILD_VERSION
-ARG COMMIT
-
-LABEL org.label-schema.vendor="Weaveworks" \
-  org.label-schema.build-date="${BUILD_DATE}" \
-  org.label-schema.version="${BUILD_VERSION}" \
-  org.label-schema.name="Socks Shop: Cart" \
-  org.label-schema.description="REST API for Cart service" \
-  org.label-schema.url="https://github.com/microservices-demo/carts" \
-  org.label-schema.vcs-url="github.com:microservices-demo/carts.git" \
-  org.label-schema.vcs-ref="${COMMIT}" \
-  org.label-schema.schema-version="1.0"
-
-ENTRYPOINT ["/usr/local/bin/java.sh","-jar","./app.jar", "--port=80"]
+USER root
+ENTRYPOINT ["java","-jar","./app.jar", "--port=8080"]

pom.xml

@@ -14,29 +14,55 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.0.4.RELEASE</version>
+        <version>3.0.2</version>
+        <relativePath/>
     </parent>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <java.version>1.8</java.version>
+        <java.version>18</java.version>
         <prometheus.version>0.0.21</prometheus.version>
     </properties>
 
     <dependencies>
+      <dependency>
+          <groupId>org.hibernate.validator</groupId>
+          <artifactId>hibernate-validator</artifactId>
+      </dependency>
+      <dependency>
+          <groupId>com.h2database</groupId>
+          <artifactId>h2</artifactId>
+      </dependency>
+      <dependency>
+          <groupId>org.springframework.boot</groupId>
+          <artifactId>spring-boot-starter-data-jpa</artifactId>
+          <version>3.0.2</version>
+      </dependency>
+      <dependency>
+          <groupId>org.springframework</groupId>
+          <artifactId>spring-core</artifactId>
+          <version>6.0.4</version>
+      </dependency>
+        <dependency>
+            <groupId>javax.validation</groupId>
+            <artifactId>validation-api</artifactId>
+            <version>2.0.1.Final</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13.2</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-rest</artifactId>
+            <version>3.0.2</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-mongodb</artifactId>
         </dependency>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-zipkin</artifactId>
-            <version>1.1.0.RELEASE</version>
-        </dependency>
         <dependency>
             <groupId>io.prometheus</groupId>
             <artifactId>simpleclient_spring_boot</artifactId>
@@ -55,6 +81,7 @@
         <dependency>
             <groupId>org.springframework.data</groupId>
             <artifactId>spring-data-rest-hal-browser</artifactId>
+            <version>3.3.9.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -73,6 +100,11 @@
             <version>0.8.4</version>
             <scope>test</scope>
         </dependency>
+	<dependency>
+	    <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+            <version>4.0.1</version>
+	</dependency>
     </dependencies>
 
     <build>
@@ -81,11 +113,12 @@
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>3.0.2</version>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.19.1</version>
+		<version>3.0.0-M8</version>
                 <configuration>
                     <includes>
                         <include>**/Unit*.java</include>
@@ -98,7 +131,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-failsafe-plugin</artifactId>
-                <version>2.18.1</version>
+		<version>3.0.0-M8</version>
                 <configuration>
                     <includes>
                         <include>**/IT*.java</include>
@@ -119,7 +152,7 @@
             <plugin>
                 <groupId>org.jacoco</groupId>
                 <artifactId>jacoco-maven-plugin</artifactId>
-                <version>0.7.6.201602180812</version>
+                <version>0.8.8</version>
                 <executions>
                     <execution>
                         <id>prepare-agent</id>

scripts/build.sh

@@ -24,7 +24,9 @@ else
 fi
 CODE_DIR=$(cd $SCRIPT_DIR/..; pwd)
 echo $CODE_DIR
-$DOCKER_CMD run --rm -v $HOME/.m2:/root/.m2 -v $CODE_DIR:/usr/src/mymaven -w /usr/src/mymaven maven:3.6-jdk-11 mvn -q -DskipTests package
+$DOCKER_CMD run --rm -v $HOME/.m2:/root/.m2 -v $CODE_DIR:/usr/src/mymaven -w /usr/src/mymaven maven:3.8.5-openjdk-18 mvn -q -e -DskipTests package
+
+echo $(ls -lt $CODE_DIR/target/*.jar)
 
 cp $CODE_DIR/target/*.jar $CODE_DIR/docker/carts
 

src/main/java/works/weave/socks/cart/CartApplication.java

@@ -1,11 +1,9 @@
 package works.weave.socks.cart;
 
-import io.prometheus.client.spring.boot.EnablePrometheusEndpoint;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
-@EnablePrometheusEndpoint
 public class CartApplication {
     public static void main(String[] args) {
         SpringApplication.run(CartApplication.class, args);

src/main/java/works/weave/socks/cart/configuration/MongoConfiguration.java

@@ -5,17 +5,7 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
-import com.mongodb.MongoClientOptions;
-
 @Configuration
 @AutoConfigureBefore(MongoAutoConfiguration.class)
 public class MongoConfiguration {
-
-    @Bean
-    public MongoClientOptions optionsProvider() {
-        MongoClientOptions.Builder optionsBuilder = new MongoClientOptions.Builder();
-        optionsBuilder.serverSelectionTimeout(10000);
-        MongoClientOptions options = optionsBuilder.build();
-        return options;
-    }
 }

src/main/java/works/weave/socks/cart/middleware/HTTPMonitoringInterceptor.java

@@ -13,8 +13,8 @@
 import org.springframework.web.servlet.mvc.condition.PatternsRequestCondition;
 import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
 
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
 import java.util.HashSet;
 import java.util.Set;