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feat: add Java dynamic dedup sample
Signed-off-by: Asish Kumar <officialasishkumar@gmail.com>
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‎java-dedup/.gitignore‎

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/target/
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/keploy/
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/keploy.yml
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/dedupData.yaml
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/duplicates.yaml
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/*.log

‎java-dedup/Dockerfile‎

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ARG JAVA_VERSION=8
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FROM eclipse-temurin:${JAVA_VERSION}-jre
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WORKDIR /app
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COPY target/java-dedup-0.0.1-SNAPSHOT.jar /app/app.jar
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COPY target/jacocoagent.jar /app/jacocoagent.jar
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COPY target/classes /app/target/classes
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ENV KEPLOY_JAVA_CLASS_DIRS=/app/target/classes
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EXPOSE 8080
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ENTRYPOINT ["java", "-javaagent:/app/jacocoagent.jar=address=127.0.0.1,port=36320,destfile=/tmp/jacoco-keploy.exec,output=tcpserver", "-jar", "/app/app.jar"]

‎java-dedup/README.md‎

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# Java Dynamic Deduplication Sample
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This sample is a small Spring Boot application used by Keploy CI to validate Java dynamic deduplication in native and Docker runs.
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Build the application after installing the Java SDK locally:
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```bash
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mvn -B -DskipTests package
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```
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Run it natively with JaCoCo TCP server mode:
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```bash
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java -javaagent:target/jacocoagent.jar=address=127.0.0.1,port=36320,destfile=target/jacoco-keploy.exec,output=tcpserver \
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-jar target/java-dedup-0.0.1-SNAPSHOT.jar
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```
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Run it with Docker Compose after the Maven package step has created `target/java-dedup-0.0.1-SNAPSHOT.jar`:
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```bash
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docker compose up --build
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```
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For a more restricted container run:
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```bash
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docker compose -f docker-compose.yml -f docker-compose.restricted.yml up --build
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```

‎java-dedup/docker-compose.restricted.yml‎

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services:
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java-dedup:
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read_only: true
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tmpfs:
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- /tmp
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cap_drop:
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- ALL
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security_opt:
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- no-new-privileges:true

‎java-dedup/docker-compose.yml‎

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services:
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java-dedup:
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build:
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context: .
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dockerfile: Dockerfile
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args:
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JAVA_VERSION: ${JAVA_VERSION:-8}
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container_name: dedup-java
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ports:
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- "8080:8080"
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environment:
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KEPLOY_JAVA_CLASS_DIRS: /app/target/classes

‎java-dedup/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.7.18</version>
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<relativePath/>
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</parent>
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<groupId>io.keploy.samples</groupId>
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<artifactId>java-dedup</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<name>java-dedup</name>
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<description>Keploy Java dynamic deduplication sample</description>
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<properties>
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<java.version>1.8</java.version>
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<keploy.sdk.version>0.0.1-SNAPSHOT</keploy.sdk.version>
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<jacoco.version>0.8.12</jacoco.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>io.keploy</groupId>
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<artifactId>keploy-sdk</artifactId>
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<version>${keploy.sdk.version}</version>
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</dependency>
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<dependency>
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<groupId>org.jacoco</groupId>
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<artifactId>org.jacoco.agent</artifactId>
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<version>${jacoco.version}</version>
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<classifier>runtime</classifier>
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<scope>runtime</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-dependency-plugin</artifactId>
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<version>3.6.1</version>
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<executions>
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<execution>
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<id>copy-jacoco-agent</id>
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<phase>package</phase>
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<goals>
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<goal>copy</goal>
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</goals>
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<configuration>
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<artifactItems>
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<artifactItem>
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<groupId>org.jacoco</groupId>
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<artifactId>org.jacoco.agent</artifactId>
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<version>${jacoco.version}</version>
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<classifier>runtime</classifier>
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<type>jar</type>
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<outputDirectory>${project.build.directory}</outputDirectory>
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<destFileName>jacocoagent.jar</destFileName>
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</artifactItem>
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</artifactItems>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

‎java-dedup/src/main/java/io/keploy/samples/javadedup/DedupController.java‎

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package io.keploy.samples.javadedup;
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import io.keploy.samples.javadedup.model.Item;
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import io.keploy.samples.javadedup.model.Product;
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import io.keploy.samples.javadedup.model.User;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.DeleteMapping;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.PutMapping;
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import org.springframework.web.bind.annotation.RequestBody;
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import org.springframework.web.bind.annotation.RestController;
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import java.time.Instant;
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import java.util.Arrays;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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@RestController
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public class DedupController {
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@GetMapping("/")
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public Map<String, Object> health() {
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Map<String, Object> response = new LinkedHashMap<>();
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response.put("status", "ok");
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return response;
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}
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@GetMapping("/hello/{name}")
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public String hello(@PathVariable String name) {
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return greeting(name);
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}
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@PostMapping("/user")
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public Map<String, Object> createUser(@RequestBody User user) {
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Map<String, Object> response = new LinkedHashMap<>();
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response.put("message", "User created successfully");
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response.put("user", user);
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return response;
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}
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@PutMapping("/item/{id}")
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public Map<String, Object> updateItem(@PathVariable String id, @RequestBody Item item) {
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Map<String, Object> response = new LinkedHashMap<>();
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response.put("message", "Item updated successfully");
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response.put("id", id);
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response.put("updatedData", item);
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return response;
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}
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@GetMapping("/products")
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public List<Product> products() {
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return Arrays.asList(
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new Product("prod001", "Eco-friendly Water Bottle", "A reusable bottle.",
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Arrays.asList("eco", "kitchen")),
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new Product("prod002", "Wireless Charger", "Charges your devices.",
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Arrays.asList("tech", "mobile"))
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);
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}
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@DeleteMapping("/products/{id}")
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public Map<String, Object> deleteProduct(@PathVariable String id) {
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Map<String, Object> response = new LinkedHashMap<>();
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response.put("status", "product " + id + " deleted");
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return response;
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}
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@GetMapping("/api/v2/users")
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public Map<String, Object> apiUsers() {
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Map<String, Object> first = new LinkedHashMap<>();
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first.put("name", "gamma");
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Map<String, Object> second = new LinkedHashMap<>();
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second.put("name", "delta");
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Map<String, Object> response = new LinkedHashMap<>();
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response.put("version", 2);
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response.put("users", Arrays.asList(first, second));
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return response;
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}
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@GetMapping("/timestamp")
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public Map<String, Object> timestamp() {
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Map<String, Object> response = new LinkedHashMap<>();
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response.put("current_time", Instant.now().toString());
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return response;
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}
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@GetMapping("/status/{name}")
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public ResponseEntity<Map<String, Object>> status(@PathVariable String name) {
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Map<String, Object> response = new LinkedHashMap<>();
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response.put("message", greeting(name));
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response.put("service", "java-dedup");
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return new ResponseEntity<>(response, HttpStatus.OK);
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}
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private String greeting(String name) {
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return "Hello, " + name + "!";
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}
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}

‎java-dedup/src/main/java/io/keploy/samples/javadedup/JavaDedupApplication.java‎

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package io.keploy.samples.javadedup;
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import io.keploy.servlet.KeployMiddleware;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.context.annotation.Import;
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@SpringBootApplication
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@Import(KeployMiddleware.class)
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public class JavaDedupApplication {
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public static void main(String[] args) {
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SpringApplication.run(JavaDedupApplication.class, args);
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}
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}

‎java-dedup/src/main/java/io/keploy/samples/javadedup/model/Item.java‎

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package io.keploy.samples.javadedup.model;
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import java.math.BigDecimal;
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public class Item {
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private String id;
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private String name;
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private BigDecimal price;
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public Item() {
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}
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public Item(String id, String name, BigDecimal price) {
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this.id = id;
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this.name = name;
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this.price = price;
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}
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public String getId() {
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return id;
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}
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public void setId(String id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public BigDecimal getPrice() {
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return price;
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}
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public void setPrice(BigDecimal price) {
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this.price = price;
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}
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}

‎java-dedup/src/main/java/io/keploy/samples/javadedup/model/Product.java‎

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package io.keploy.samples.javadedup.model;
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import java.util.List;
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public class Product {
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private String productId;
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private String name;
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private String description;
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private List<String> tags;
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public Product() {
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}
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public Product(String productId, String name, String description, List<String> tags) {
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this.productId = productId;
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this.name = name;
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this.description = description;
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this.tags = tags;
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}
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public String getProductId() {
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return productId;
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}
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public void setProductId(String productId) {
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this.productId = productId;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public String getDescription() {
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return description;
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}
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public void setDescription(String description) {
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this.description = description;
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}
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public List<String> getTags() {
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return tags;
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}
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public void setTags(List<String> tags) {
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this.tags = tags;
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}
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}

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