Runtime error while running a Spring Session + Spring Boot application
maven, spring, spring-boot, spring-mvc-test, spring-session
Solution
I see a few places for cleanup:
- You have conflicting Spring versions in your pom. Specifically spring-web-4.1.3 is explicitly listed and Spring Boot 1.1.10 brings in Spring 4.0.8. Remove every version from your pom (except Spring Session & embedded-redis) which are not yet managed by Spring Boot) and let the spring-boot-starter-parent manage it
- Remove the spring-web dependency all together (it is already included in spring-boot-starter-web)
- Replace the security dependencies with spring-boot-starter-security
You can find the summary below:
<?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>org.springframework</groupId>
<artifactId>gs-spring-boot</artifactId>
<version>0.1.0</version>
<!-- ... -->
<packaging>war</packaging>
<!-- ... -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.1.10.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
<version>1.0.0.RELEASE</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>com.orange.redis-embedded</groupId>
<artifactId>embedded-redis</artifactId>
<version>0.5</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<artifactId>maven-failsafe-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
Problem
I am trying to run this Spring Session example available here but, I've used Maven instead of Gradle. I get the following error both while a) Running the WAR file and b) Deploying the WAR in an WildFly8.2 server A quick search suggests that the problem could be conflicting versions among various dependencies quoted in the pom.xml. What is the root cause & solution for this error ? Error while Running or Deploying the WAR ``` 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:483) at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.boot.SpringApplicationRunListener : org.springframework.boot.context.event.EventPublishingRunListener at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:381) at org.springframework.boot.SpringApplication.getRunListeners(SpringApplication.java:352) at org.springframework.boot.SpringApplication.run(SpringApplication.java:274) at org.springframework.boot.SpringApplication.run(SpringApplication.java:952) at org.springframework.boot.SpringApplication.run(SpringApplication.java:941) at hello.Application.main(Application.java:25) ... 6 more Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:408) at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:377) ... 11 more Caused by: java.lang.NoSuchFieldError: INSTANCE at org.springframework.boot.SpringApplication.asUnmodifiableOrderedSet(SpringApplication.java:1031) at org.springframework.boot.SpringApplication.getListeners(SpringApplication.java:930) at org.springframework.boot.context.event.EventPublishingRunListener.<init>(EventPublishingRunListener.java:47) ... 16 more ``` Here is my complete 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>org.springframework</groupId> <artifactId>gs-spring-boot</artifactId> <version>0.1.0</version> <!-- ... --> <packaging>war</packaging> <!-- ... --> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.1.10.RELEASE</version> </parent> <dependencies> <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-tomcat</artifactId> <scope>provided</scope> </dependency> <!-- <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>3.1.1.RELEASE</version> </dependency> --> <dependency> <groupId>org.springframework.session</groupId> <artifactId>spring-session-data-redis</artifactId> <version>1.0.0.RELEASE</version> <type>pom</type> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.1.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-web</artifactId> <version>3.2.5.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-config</artifactId> <version>3.2.5.RELEASE</version> </dependency> <dependency> <groupId>com.orange.redis-embedded</groupId> <artifactId>embedded-redis</artifactId> <version>0.5</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> </properties> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> <plugin> <artifactId>maven-failsafe-plugin</artifactId> <executions> <execution> <goals> <goal>integration-test</goal> <goal>verify</goal> </goals> </execution> </executions> </plugin> </plugins> </build> </project> ```