Issue
I am trying to integrate Gatling to perform automation load testing. but I am getting different errors. I need some help on this topic.
I am using JDK-11 version
My Controller class as follows
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/health")
public class HealthController {
private static final Logger LOGGER = LoggerFactory.getLogger(HealthController.class);
@Autowired
OptionRepository repository;
@GetMapping("/{id}/options")
public List<Health> findAllOptions(@PathVariable("id") Long id) {
return (List<Health>) repository.findAll(id);
}
@GetMapping("/{id}/valid/dates")
public List<Health> findByDates(@PathVariable("id") Long id) {
return repository.findDates(id);
}
}
@Data
class Health{
List<String> options;
List<String> dates;
}
My build.gradle as follows
/* ========================
* Build
* ========================
*/
buildscript {
ext {
springBootVersion = '2.4.4.RELEASE'
}
repositories {
mavenCentral()
maven {
url "https://plugins.gradle.org/m2/"
}
maven { url 'https://repo.spring.io/snapshot' }
jcenter()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:2.4.4")
classpath "io.spring.gradle:dependency-management-plugin:0.6.1.RELEASE"
}
}
/* ========================
* Plugins
* ========================
*/
apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
apply plugin: 'jacoco'
apply plugin: 'scala'
apply plugin: 'java-library'
/* ========================
* Project Info
* ========================
*/
version = '1.0.0'
sourceCompatibility = 11
targetCompatibility = 11
defaultTasks 'bootRun'
tasks.withType(JavaCompile) {
options.encoding = 'UTF-8'
}
/* ========================
* Dependencies
* =========================
*/
repositories {
mavenCentral()
maven { url 'https://repo.spring.io/snapshot' }
}
configurations {
providedRuntime
}
dependencies {
compileOnly 'org.projectlombok:lombok:1.18.16'
annotationProcessor 'org.projectlombok:lombok:1.18.16'
testCompileOnly 'org.projectlombok:lombok:1.18.16'
testAnnotationProcessor 'org.projectlombok:lombok:1.18.16'
compile('org.springframework.boot:spring-boot-starter-actuator')
compile('org.springframework.boot:spring-boot-starter-web')
compile('org.springframework.boot:spring-boot-starter-security')
compile 'org.springframework.boot:spring-boot-starter-thymeleaf'
compile ('org.springframework.security.oauth.boot:spring-security-oauth2-autoconfigure:2.4.4')
compile('io.jsonwebtoken:jjwt:0.9.0')
compile ('org.apache.commons:commons-csv:1.8')
compile("org.mybatis.spring.boot:mybatis-spring-boot-starter:2.1.3")
compile 'org.apache.commons:commons-lang3:3.6'
compile 'org.apache.commons:commons-collections4:4.0'
runtime('org.springframework.boot:spring-boot-devtools')
providedRuntime('org.springframework.boot:spring-boot-starter-tomcat')
runtimeOnly('org.postgresql:postgresql:42.2.19')
testCompile('org.springframework.boot:spring-boot-starter-test')
testCompile('com.github.javafaker:javafaker:0.15')
implementation ('org.mybatis.spring.boot:mybatis-spring-boot-test-autoconfigure:1.2.2')
implementation ('org.liquibase:liquibase-core:4.3.2')
implementation ('org.springdoc:springdoc-openapi-maven-plugin:1.2')
implementation ('org.springdoc:springdoc-openapi-ui:1.5.5')
implementation ('com.microsoft.sqlserver:mssql-jdbc:9.2.1.jre8')
//Tried with this libraries
//compile 'org.scala-lang:scala-library:2.10.1'
//implementation ('net.alchim31.maven:scala-maven-plugin:4.5.1')
//implementation ('io.gatling:gatling-maven-plugin:3.1.2')
testCompile('io.gatling.highcharts:gatling-charts-highcharts:2.3.0')
}
/* ========================
* Task Configuration
* ========================
*/
test {
finalizedBy jacocoTestReport // report is always generated after tests run
filter {
excludeTestsMatching "com.dev.*"
}
}
test.onlyIf { project.hasProperty('executeTests') }
jacoco {
toolVersion = "0.8.6"
}
jacocoTestReport {
reports {
xml.enabled false
csv.enabled false
html.destination file("${buildDir}/reports/jacoco")
}
afterEvaluate {
classDirectories.setFrom(files(classDirectories.files.collect {
fileTree(dir: it,
exclude: ['**/domain/**'
]
)
}))
}
}
apply plugin: 'jacoco'
jacocoTestCoverageVerification {
violationRules {
rule {
limit {
minimum = 0.9
}
}
rule {
enabled = false
element = 'CLASS'
includes = ['org.gradle.*']
limit {
counter = 'LINE'
value = 'TOTALCOUNT'
maximum = 0.3
}
}
}
}
/**
* Gatling load tests
*/
task loadTest(type: JavaExec) {
dependsOn testClasses
description = "Load Test With Gatling"
group = "Load Test"
classpath = sourceSets.test.runtimeClasspath
jvmArgs = [
"-Dgatling.core.directory.binaries=${sourceSets.test.output.classesDirs.toString()}"
]
main = "io.gatling.app.Gatling"
args = [
"--simulation", "com.dev.ApiGatlingSimulationTest",
"--results-folder", "${buildDir}/gatling-results",
//"--binaries-folder", sourceSets.test.output.classesDirs.toString(),
"--bodies-folder", sourceSets.test.resources.srcDirs.toList().first().toString() + "/gatling/bodies",
]
}
def logbackGatlingConfig() {
return sourceSets.test.resources.find { it.name == 'logback-gatling.xml' }
}
bootJar { baseName = 'migroes-services' }
My scala test suit as follows
package com.dev
import io.gatling.core.scenario.Simulation
import io.gatling.core.Predef._
import io.gatling.http.Predef._
import java.util.Date
import scala.concurrent.duration.FiniteDuration
import scala.concurrent.duration.Duration
import java.util.concurrent.TimeUnit
class ApiGatlingSimulationTest extends Simulation {
val scn = scenario("Dev Status").repeat(1000, "n") {
exec(
http("Get All Options")
.get("http://localhost:8080/health/dev-001/options")
.check(status.is(200))
).pause(Duration.apply(5, TimeUnit.MILLISECONDS))
}.repeat(1000, "n") {
exec(
http("Valid Dates")
.get("http://localhost:8090/health/dev-002/valid/dates")
.check(status.is(200))
)
}
setUp(scn.inject(atOnceUsers(30))).maxDuration(FiniteDuration.apply(10, "minutes"))
}
Currently I am getting below error from Command line.
I am first running the application via STS & then trying to fire gradle loadTest command.
D:\dev-repo\migroes-services>gradle clean build
> Task :compileJava
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
> Task :compileTestJava
Note: D:\dev-repo\migroes-services\src\test\java\com\dev\services\TestUtils.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.8.3/userguide/command_line_interface.html#sec:command_line_warnings
BUILD SUCCESSFUL in 1m 3s
8 actionable tasks: 8 executed
D:\dev-repo\migroes-services>gradle loadTest
> Task :loadTest
21:02:53.898 [GatlingSystem-akka.actor.default-dispatcher-2] INFO akka.event.slf4j.Slf4jLogger - Slf4jLogger started
Exception in thread "main" io.gatling.core.session.el.ElParserException: Failed to parse VIN with error 'class [B cannot be cast to class [C ([B and [C are in module java.base of loader 'bootstrap')'
at io.gatling.core.session.el.ElCompiler.parseEl(ElCompiler.scala:249)
at io.gatling.core.session.el.ElCompiler$.parse(ElCompiler.scala:171)
at io.gatling.core.session.el.ElCompiler$.compile(ElCompiler.scala:174)
at io.gatling.core.session.el.package$El$.el$extension(package.scala:26)
at io.gatling.core.ValidationImplicits.stringToExpression(ValidationImplicits.scala:48)
at io.gatling.core.ValidationImplicits.stringToExpression$(ValidationImplicits.scala:48)
at io.gatling.core.Predef$.stringToExpression(Predef.scala:22)
at com.dev.ApiGatlingSimulationTest.<init>(ApiGatlingSimulationTest.scala:15)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at java.base/java.lang.Class.newInstance(Class.java:584)
at io.gatling.app.Runner.run0(Runner.scala:79)
at io.gatling.app.Runner.run(Runner.scala:64)
at io.gatling.app.Gatling$.start(Gatling.scala:59)
at io.gatling.app.Gatling$.fromArgs(Gatling.scala:43)
at io.gatling.app.Gatling$.main(Gatling.scala:35)
at io.gatling.app.Gatling.main(Gatling.scala)
> Task :loadTest FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':loadTest'.
> Process 'command 'C:\Program Files\Java\jdk-11.0.8\bin\java.exe'' finished with non-zero exit value 1
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.8.3/userguide/command_line_interface.html#sec:command_line_warnings
BUILD FAILED in 15s
6 actionable tasks: 1 executed, 5 up-to-date
I am getting most of time below error.
Exception in thread "main" io.gatling.core.session.el.ElParserException: Failed to parse VIN with error 'class [B cannot be cast to class [C ([B and [C are in module java.base of loader 'bootstrap')'
I tried to reach out several different blogs and similar situations on different platform. till now no luck !!
Solution
testCompile('io.gatling.highcharts:gatling-charts-highcharts:2.3.0')
You're trying to use Gatling 2 that has been dead for years. Please upgrade. Latest version is 3.5.1 as of now.
Answered By - Stéphane LANDELLE
Answer Checked By - Candace Johnson (JavaFixing Volunteer)
