Deploy AppEngine Flexible using Spring boot + gradle, Jetty Error

Question

I have an application for Google App Engine Flexible using gradle and spring boot. my build.gradle file is as the following:

buildscript {
repositories {
    mavenCentral()
}
dependencies {
    classpath("org.springframework.boot:spring-boot-gradle-plugin:1.3.5.RELEASE")
    classpath 'io.spring.gradle:dependency-management-plugin:0.6.1.RELEASE'
    classpath("org.springframework.boot:spring-boot-gradle-plugin:1.3.5.RELEASE")
    classpath 'com.google.cloud.tools:appengine-gradle-plugin:+'    // latest App Engine Gradle tasks       
    }
}
    apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'spring-boot'
apply plugin: 'war'
apply plugin: 'com.google.cloud.tools.appengine'  // App Engine tasks
war {
    baseName = 'gs-accessing-mongodb-data-rest'
    version =  '0.1.0'
}
repositories {
    mavenCentral()
}
configurations {
    providedRuntime
}
sourceCompatibility = 1.8
targetCompatibility = 1.8
dependencies {
    providedCompile group: 'javax.servlet', name: 'servlet-api', version:'2.5'
    compile 'com.google.appengine:appengine:+'
    compile("org.springframework.boot:spring-boot-starter-data-rest")
    compile("org.springframework.boot:spring-boot-starter-data-mongodb")    
    //compile("org.springframework.boot:spring-boot-starter-web")  
    compile("org.springframework:spring-webmvc:4.2.3.RELEASE")
    compile("org.springframework:spring-tx:4.2.3.RELEASE")  
    testCompile("org.springframework.boot:spring-boot-starter-test") 
    compile("javax.servlet:jstl:1.2")
    //compile("javax.servlet:javax.servlet-api:2.5")
    compile("javax.servlet:servlet-api:2.5")  
    compile("org.codehaus.jackson:jackson-mapper-asl:1.9.13")
    compile("com.fasterxml.jackson.core:jackson-databind:2.5.3")
    compile("com.fasterxml.jackson.core:jackson-core:2.5.3")
    compile("commons-fileupload:commons-fileupload:1.3.1")
    compile("commons-io:commons-io:2.4")
    testCompile("junit:junit")
    providedRuntime 'org.apache.tomcat.embed:tomcat-embed-jasper'
    compile 'org.mongodb:mongo-java-driver:3.2.2'    
}
appengine {  // App Engine tasks configuration
  deploy {   // deploy configuration
    stopPreviousVersion = true  // default - stop the current version
    promote = true              // default - & make this the current version
  }
}
group = 'com.acin.shelfcheck'   // Generated output GroupId
version = '1.0-SNAPSHOT'          // Version in generated output
eclipse {
    project.natures 'org.eclipse.buildship.core.gradleprojectnature'
}

When I try to deploy my app in Google AppEngine Flexible, I get the following error:

    Application startup error:
        at org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(DeploymentManager.java:561)
        at org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.java:236)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
        at org.eclipse.jetty.server.Server.start(Server.java:452)
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:113)
        at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
        at org.eclipse.jetty.server.Server.doStart(Server.java:419)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1511)
        at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1438)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1437)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.eclipse.jetty.start.Main.invokeMain(Main.java:220)
        at org.eclipse.jetty.start.Main.start(Main.java:484)
        at org.eclipse.jetty.start.Main.main(Main.java:77)
2017-04-03 11:50:03.416:INFO:root:main: 2 Spring WebApplicationInitializers detected on classpath
2017-04-03 11:50:03.681:WARN:oejd.DeploymentManager:main: Unable to reach node goal: started
java.util.ServiceConfigurationError: org.apache.juli.logging.Log: Provider org.eclipse.jetty.apache.jsp.JuliLog not a subtype
        at java.util.ServiceLoader.fail(ServiceLoader.java:239)
        at java.util.ServiceLoader.access$300(ServiceLoader.java:185)
        at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:376)
        at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
        at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
        at org.apache.juli.logging.LogFactory.<init>(LogFactory.java:78)
        at org.apache.juli.logging.LogFactory.<clinit>(LogFactory.java:66)
        at org.apache.tomcat.websocket.server.WsServerContainer.<clinit>(WsServerContainer.java:76)
        at org.apache.tomcat.websocket.server.WsSci.init(WsSci.java:131)
        at org.apache.tomcat.websocket.server.WsSci.onStartup(WsSci.java:47)
        at org.eclipse.jetty.plus.annotation.ContainerInitializer.callStartup(ContainerInitializer.java:140)
        at org.eclipse.jetty.annotations.ServletContainerInitializersStarter.doStart(ServletContainerInitializersStarter.java:63)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:329)
        at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1480)
        at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1442)
        at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:788)
        at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:261)
        at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:540)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:41)
        at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:188)
        at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:499)
        at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:147)
        at org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:180)
        at org.eclipse.jetty.deploy.providers.WebAppProvider.fileAdded(WebAppProvider.java:452)
        at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:64)
        at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:610)
        at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:529)
        at org.eclipse.jetty.util.Scanner.scan(Scanner.java:392)
        at org.eclipse.jetty.util.Scanner.doStart(Scanner.java:313)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at org.eclipse.jetty.deploy.providers.ScanningAppProvider.doStart(ScanningAppProvider.java:150)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(DeploymentManager.java:561)
        at org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.java:236)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
        at org.eclipse.jetty.server.Server.start(Server.java:452)
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:113)
        at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
        at org.eclipse.jetty.server.Server.doStart(Server.java:419)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1511)
        at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1438)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1437)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.eclipse.jetty.start.Main.invokeMain(Main.java:220)
        at org.eclipse.jetty.start.Main.start(Main.java:484)
        at org.eclipse.jetty.start.Main.main(Main.java:77)

    java.lang.IllegalStateException: No Available Context
        at com.google.cloud.runtimes.jetty9.DeploymentCheck.lifeCycleStarted(DeploymentCheck.java:46)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.setStarted(AbstractLifeCycle.java:179)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
        at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1511)
        at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1438)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1437)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.eclipse.jetty.start.Main.invokeMain(Main.java:220)
        at org.eclipse.jetty.start.Main.start(Main.java:484)
        at org.eclipse.jetty.start.Main.main(Main.java:77)
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.eclipse.jetty.start.Main.invokeMain(Main.java:220)
        at org.eclipse.jetty.start.Main.start(Main.java:484)
        at org.eclipse.jetty.start.Main.main(Main.java:77)
Caused by: java.lang.IllegalStateException: No Available Context
        at com.google.cloud.runtimes.jetty9.DeploymentCheck.lifeCycleStarted(DeploymentCheck.java:46)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.setStarted(AbstractLifeCycle.java:179)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
        at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1511)
        at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1438)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1437)
        ... 7 more
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.eclipse.jetty.start.Main.invokeMain(Main.java:220)
        at org.eclipse.jetty.start.Main.start(Main.java:484)
        at org.eclipse.jetty.start.Main.main(Main.java:77)
Caused by: java.lang.IllegalStateException: No Available Context
        at com.google.cloud.runtimes.jetty9.DeploymentCheck.lifeCycleStarted(DeploymentCheck.java:46)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.setStarted(AbstractLifeCycle.java:179)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:69)
        at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1511)
        at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1438)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1437)
        ... 7 more

Where I have mistaken in my gradle file?

Answer 1

I met the same problem and solved as below.

1. create ServletInitializer.java (for deploy change jar -> war)

   • Spring Boot packaging the project to War

2. modify build.gradle

   • add dependencies graprovidedRuntime('org.springframework.boot:spring-boot-starter-tomcat')

example in build.gradle

buildscript {
    ext {
        springBootVersion = '2.0.3.RELEASE'
    }
    repositories {
        jcenter()
        mavenCentral()
    }

    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
        classpath 'com.google.cloud.tools:appengine-gradle-plugin:2.0.0-rc3'
    }
}

apply plugin: 'java'
apply plugin: 'war'  
apply plugin: 'eclipse'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
apply plugin: 'com.google.cloud.tools.appengine'



repositories {
    mavenCentral()


}

group   = "yourProjectID"        // Generated output GroupId
version = "1.0-SNAPSHOT"       // Version in generated output

sourceCompatibility = 1.8
targetCompatibility = 1.8

appengine {
    deploy {
        version = "GCLOUD_CONFIG"
        projectId = "GCLOUD_CONFIG"
    }
}

dependencies {

    compile("org.springframework.boot:spring-boot-starter-web")

     ....

    providedRuntime('org.springframework.boot:spring-boot-starter-tomcat')
}

Answer 2

As Joakim has explained to delete the org.apache.tomcat.websocket.server.WsSci I have excluded tomcat as it has been explained in this link as the following:

Example in Maven:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <exclusions>
        <exclusion>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-jetty</artifactId>
</dependency>

Example in Gradle:

    configurations {
compile.exclude module: "spring-boot-starter-tomcat"
}
dependencies {
    compile("org.springframework.boot:spring-boot-starter-web:1.5.2.RELEASE")
    compile("org.springframework.boot:spring-boot-starter-jetty:1.5.2.RELEASE")
    // ...
}

Answer 3

You have 2 containers setup in your application.

org.apache.tomcat.websocket.server.WsServerContainer

That is not possible on Jetty.

Look for the jar file that has the class org.apache.tomcat.websocket.server.WsSci and you'll either have to replace it with something that isn't Tomcat specific, or remove it.