1

I've a application with spring boot + cassandra + spark. I builded the file .war, but it's not loading. I prepared the packed based on the spring boot's documentation. The pom, inicialization class, ...

I cheked all the stackoverflow about this topic, but I did not find any this like this.

However, I have this stacktrace:

12-Feb-2021 17:47:19.321 SEVERE [main] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive [/opt/tomcat/webapps/SSP-0.0.1.war]
java.lang.IllegalStateException: Error starting child
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:706)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:978)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1848)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
    at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:773)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
    at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1576)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:309)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
    at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423)
    at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:936)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:843)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:434)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:772)
    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.apache.catalina.startup.Bootstrap.start(Bootstrap.java:342)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:473)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/SSP-0.0.1]]
    at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
    ... 37 more
Caused by: java.lang.NullPointerException
    at org.springframework.boot.cli.app.SpringApplicationWebApplicationInitializer.getSources(SpringApplicationWebApplicationInitializer.java:61)
    at org.springframework.boot.cli.app.SpringApplicationWebApplicationInitializer.onStartup(SpringApplicationWebApplicationInitializer.java:47)
    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:174)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5166)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    ... 38 more

The POM.XML

<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>SSP</groupId>
<artifactId>SSP</artifactId>
<packaging>war</packaging>
<version>0.0.1</version>
<name>SSP</name>
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.4.2</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>
<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <scope>test</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-tomcat -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot</artifactId>
    </dependency>
    <dependency>
        <groupId>javax.persistence</groupId>
        <artifactId>javax.persistence-api</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-cassandra -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-cassandra</artifactId>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    <dependency>
        <groupId>org.python</groupId>
        <artifactId>jython</artifactId>
        <version>2.7.2</version>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.datastax.spark/spark-cassandra-connector -->
    <dependency>
        <groupId>com.datastax.spark</groupId>
        <artifactId>spark-cassandra-connector_2.12</artifactId>
        <version>3.0.0</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.apache.spark/spark-core -->
    <dependency>
        <groupId>org.apache.spark</groupId>
        <artifactId>spark-core_2.12</artifactId>
        <version>3.1.0</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.apache.spark/spark-sql -->
    <dependency>
        <groupId>org.apache.spark</groupId>
        <artifactId>spark-sql_2.12</artifactId>
        <version>3.1.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-exec</artifactId>
        <version>1.3</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
    </dependency>
    <dependency>
        <groupId>org.javassist</groupId>
        <artifactId>javassist</artifactId>
        <version>3.27.0-GA</version>
    </dependency>
    <dependency>
        <groupId>javax.xml.bind</groupId>
        <artifactId>jaxb-api</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.webjars.npm/chart.js -->
    <dependency>
        <groupId>org.webjars.npm</groupId>
        <artifactId>chart.js</artifactId>
        <version>2.9.3</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.webjars.bower/jquery -->
    <dependency>
        <groupId>org.webjars.bower</groupId>
        <artifactId>jquery</artifactId>
        <version>3.2.1</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-math3 -->
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-math3</artifactId>
        <version>3.6.1</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.yaml/snakeyaml -->
    <dependency>
        <groupId>org.yaml</groupId>
        <artifactId>snakeyaml</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.webjars/jquery -->
    <dependency>
        <groupId>org.webjars</groupId>
        <artifactId>jquery</artifactId>
        <version>3.5.1</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.webjars/jquery-ui -->
    <dependency>
        <groupId>org.webjars</groupId>
        <artifactId>jquery-ui</artifactId>
        <version>1.12.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-rng-parent</artifactId>
        <version>1.3</version>
        <type>pom</type>
    </dependency>
    <dependency>
        <groupId>org.hamcrest</groupId>
        <artifactId>hamcrest-core</artifactId>
        <scope>test</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.json/json -->
    <dependency>
        <groupId>org.json</groupId>
        <artifactId>json</artifactId>
        <version>20200518</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-math3</artifactId>
        <version>3.6.1</version>
    </dependency>
    <dependency>
        <groupId>com.opencsv</groupId>
        <artifactId>opencsv</artifactId>
        <version>4.2</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.datastax.cassandra/cassandra-driver-core -->
    <dependency>
        <groupId>com.datastax.cassandra</groupId>
        <artifactId>cassandra-driver-core</artifactId>
        <version>4.0.0</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/joda-time/joda-time -->
    <dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
        <version>2.10.10</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-cli -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-cli</artifactId>
        <version>2.4.2</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-configuration-processor</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/javax.servlet/servlet-api -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>2.5</version>
        <scope>provided</scope>
    </dependency>
</dependencies>
<build>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven 
            defaults (may be moved to parent pom) -->
        <plugins>
            <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
            <plugin>
                <artifactId>maven-clean-plugin</artifactId>
                <version>3.1.0</version>
            </plugin>
            <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
            <plugin>
                <artifactId>maven-resources-plugin</artifactId>
                <version>3.0.2</version>
            </plugin>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.0</version>
            </plugin>
            <plugin>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.22.1</version>
            </plugin>
            <plugin>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.0.2</version>
            </plugin>
            <plugin>
                <artifactId>maven-install-plugin</artifactId>
                <version>2.5.2</version>
            </plugin>
            <plugin>
                <artifactId>maven-deploy-plugin</artifactId>
                <version>2.8.2</version>
            </plugin>
            <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
            <plugin>
                <artifactId>maven-site-plugin</artifactId>
                <version>3.7.1</version>
            </plugin>
            <plugin>
                <artifactId>maven-project-info-reports-plugin</artifactId>
                <version>3.0.0</version>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.2.6.RELEASE</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </pluginManagement>
    <resources>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>true</filtering>
        </resource>
    </resources>
</build>

My SpringBootServletInitializer

@SpringBootApplication
@EntityScan(basePackages = { "br.com.genesis.*" })
@EnableCassandraRepositories(basePackages = { "br.com.genesis." })
@ComponentScan(basePackages = {"br.com.genesis.*"})
public class AppSSP extends SpringBootServletInitializer 
{
    public static void main( String[] args )
    {
        SpringApplication.run(AppSSP.class, args);
    }
}

Thanks for the help,

Aaron
  • 55,518
  • 11
  • 116
  • 132
Luciana Oliveira
  • 822
  • 4
  • 14
  • 35
  • Unlike other questions like [this one](https://stackoverflow.com/q/12340128/11748454), your problem is not caused by Tomcat itself, but one of the libraries. You might consider [changing the title](https://stackoverflow.com/posts/66180575/edit) of your question to `NullPointerException in SpringApplicationWebApplicationInitializer` or similar to attract the attention of Spring experts. – Piotr P. Karwasz Feb 13 '21 at 10:26

1 Answers1

3

I can see org.springframework.boot.cli.app.SpringApplicationWebApplicationInitializer in the stack trace. That class is part of Spring Boot's CLI and shouldn't be involved when you're building an application with Maven or Gradle. Looking at your pom, I can see the following dependency:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-cli</artifactId>
    <version>2.4.2</version>
</dependency>

The CLI isn't intended to be used as a dependency and it's unlikely that your application needs it. Removing the dependency from your pom should fix the NullPointerException that's causing your application to fail to start.

You may also want to review some of the other versions in your pom.xml. For example, I can see that you're using 2.4.2 of spring-boot-starter-parent but have overridden the version of spring-boot-maven-plugin to 2.2.6.RELEASE. You should remove <version>2.2.6.RELEASE</version> and allow spring-boot-starter-parent to control the version.

Andy Wilkinson
  • 108,729
  • 24
  • 257
  • 242