Develop Reference

NoClassDefFoundError for org/apache/poi/xssf/usermodel/XSSFWorkbook

I've searched along foruns and even though there's a lot of issues regarding this same error, none of them actually helped me with solving this error.
I'm getting this error:
org.apache.cxf.interceptor.Fault: org/apache/poi/xssf/usermodel/XSSFWorkbook
at org.apache.cxf.service.invoker.AbstractInvoker.createFault(AbstractInvoker.java:162)
at [internal classes]
Caused by: java.lang.NoClassDefFoundError: org/apache/poi/xssf/usermodel/XSSFWorkbook
at com.test.GetFromExcel.readXLSX(GetFromExcel.java:25)
... 1 more
[ERROR ] SRVE0315E: Ocorreu uma exceção: java.lang.Throwable: org.apache.cxf.interceptor.Fault: org/apache/poi/xssf/usermodel/XSSFWorkbook
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:4998)
I've tried removing .m2 folder and downloading dependencies again, still not a successfull atempt.
I've added the .jar files, as you can see in the image.
And I can see that same class the error is complaining about listed right where the path indicates in org/apache/poi/xssf/usermodel/XSSFWorkbook .
Not clear to me why the error is frequent if I can see the class in my project.
Project's pom.xml as requested.
Thing is I have 2 other projects where I use this library and they both never gave me any headache like this to make POI library works. I used the same configuration I used previously in those projects.
<?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>
<parent>
<groupId>net.wasdev.maven.parent</groupId>
<artifactId>java8-parent</artifactId>
<version>1.4</version>
<relativePath></relativePath>
</parent>
<groupId>net.wasdev.wlp.sample</groupId>
<artifactId>my-project</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>MYPROJECT</name>
<url>http://google.com</url>
<licenses>
<license>
<name>The Apache Software License, Version 2.0</name>
<url>https://raw.github.com/WASdev/sample.servlet/master/LICENSE</url>
<distribution>repo</distribution>
</license>
</licenses>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-servlet_3.0_spec</artifactId>
<version>1.0</version>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- https://mvnrepository.com/artifact/net.wasdev.maven.tools.targets/liberty-apis -->
<dependency>
<groupId>net.wasdev.maven.tools.targets</groupId>
<artifactId>liberty-apis</artifactId>
<version>17.0.0.2</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.0</version>
</dependency>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>javax.mail-api</artifactId>
<version>1.5.1</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-servlet_3.0_spec</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>com.cloudant</groupId>
<artifactId>cloudant-client</artifactId>
<version>2.12.0</version>
</dependency>
<!-- lib local -->
<dependency>
<groupId>com.ibm.db2.jcc</groupId>
<artifactId>db2jcc</artifactId>
<version>3.1</version>
<scope>system</scope>
<systemPath>${basedir}/libs/db2jcc.jar</systemPath>
</dependency>
<dependency>
<groupId>org.xerial</groupId>
<artifactId>sqlite-jdbc</artifactId>
<version>3.8.11.2</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>2.22.2</version>
<scope>test</scope>
</dependency>
<!-- PropertyUtils -->
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.8.3</version>
</dependency>
<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.2</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-s3</artifactId>
<version>1.11.425</version>
</dependency>
<dependency>
<groupId>com.ibm.cos</groupId>
<artifactId>ibm-cos-java-sdk</artifactId>
<version>2.4.2</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.13</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>ooxml-schemas</artifactId>
<version>1.1</version>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
<warName>bms-code-management</warName>
<webXml>src/main/web.xml</webXml>
<warSourceDirectory>front/dist</warSourceDirectory>
</configuration>
</plugin>
<plugin>
<groupId>net.wasdev.wlp.maven.plugins</groupId>
<artifactId>liberty-maven-plugin</artifactId>
<version>1.2.1</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>net.wasdev.wlp.maven.plugins</groupId>
<artifactId>liberty-maven-plugin</artifactId>
<configuration>
<configFile>src/main/wlp/server.xml</configFile>
<bootstrapProperties>
<appLocation>../../../../../${project.build.finalName}</appLocation>
</bootstrapProperties>
</configuration>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
<executions>
<execution>
<id>copy-resources</id>
<phase>package</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/target/server</outputDirectory>
<resources>
<resource>
<directory>server</directory>
<filtering>true</filtering>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<reporting>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-project-info-reports-plugin</artifactId>
<version>2.7</version>
<configuration>
<dependencyLocationsEnabled>false</dependencyLocationsEnabled>
</configuration>
</plugin>
</plugins>
</reporting>
</project>

In my case I had to add the following dependencies in my pom.xml
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>5.2.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>5.2.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>javax.xml.stream</groupId>
<artifactId>stax-api</artifactId>
<version>1.0-2</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.11.0</version>
</dependency>
All those 4 libs with exact versions, including stax-api. It should be noted that I use Maven.
Hope it'll help someone (I literally spent hours to fix this problem).

Maven Project classes not compiling

I have a Maven Project which uses a Repast Simphony simulation. The goal is to display the simulation in the Browser which works fine. The simulation itself has been compiled beforehand and was working as intented. Now i want to change a function in one of the classes, but Eclipse wont take the change.
My Project is set up like this:
Project
-src/main/java <- My Rest Service
-src/main/resources <- My HTML, JS, CSS, etc
-repastSource <- My Repast simulation
-target <- Where the .class files land
-lib <- external .jars
In the repastSource folder there are many packages with .java-Files. These classes dont get compiled, as when i check the .class files in target they still have the old change date. I somehow compiled them once apparently, but I am not sure how I did this. I am quite new to Maven and appreciate any help.
When i run my projects with the goal of clean verify my repastSimulation .class files get deleted from the target-folder.
This is my 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>adaptpro.webapplication</groupId>
<artifactId>webapplication</artifactId>
<version>1.0.0</version>
<packaging>jar</packaging>
<name>webapplication</name>
<description>WebApplication</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-to-slf4j</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>agent</groupId>
<artifactId>discourse</artifactId>
<scope>system</scope>
<version>1</version>
<systemPath>${basedir}/lib/DiscourseAgent.jar</systemPath>
</dependency>
<dependency>
<groupId>repast.simphony</groupId>
<artifactId>repast.simphony</artifactId>
<scope>system</scope>
<version>1</version>
<systemPath>${basedir}/lib/repast.jar</systemPath>
</dependency>
<dependency>
<groupId>colt</groupId>
<artifactId>colt</artifactId>
<version>1.2.0</version>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>3.2.4</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>4.2</version>
</dependency>
<dependency>
<groupId>org.apache</groupId>
<artifactId>collections</artifactId>
<scope>system</scope>
<version>1</version>
<systemPath>${basedir}/lib/collections-generic-4.01.jar</systemPath>
</dependency>
<dependency>
<groupId>event</groupId>
<artifactId>event</artifactId>
<scope>system</scope>
<version>1</version>
<systemPath>${basedir}/lib/saf.core.runtime.jar</systemPath>
</dependency>
<dependency>
<groupId>net.sf.jpf</groupId>
<artifactId>jpf</artifactId>
<scope>system</scope>
<version>1</version>
<systemPath>${basedir}/lib/jpf-1.5.jar</systemPath>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.11.1</version>
</dependency>
<dependency>
<groupId>com.thoughtworks.xstream</groupId>
<artifactId>xstream</artifactId>
<version>1.4.10</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-1.2-api</artifactId>
<scope>system</scope>
<version>2.11.1</version>
<systemPath>${basedir}/lib/apache-log4j-2.11.1-bin/log4j-1.2-api-2.11.1.jar</systemPath>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.12.1.GA</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.11.1</version>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>${project.basedir}/src/main/resources</directory>
</resource>
<resource>
<directory>${project.build.directory}/generated-resources</directory>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<executions>
<execution>
<!-- Serves *only* to filter the wro.xml so it can get an absolute
path for the project -->
<id>copy-resources</id>
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/target/wro</outputDirectory>
<resources>
<resource>
<directory>src/main/wro</directory>
<filtering>true</filtering>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>ro.isdc.wro4j</groupId>
<artifactId>wro4j-maven-plugin</artifactId>
<version>1.7.6</version>
<executions>
<execution>
<phase>generate-resources</phase>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
<configuration>
<wroManagerFactory>ro.isdc.wro.maven.plugin.manager.factory.ConfigurableWroManagerFactory</wroManagerFactory>
<cssDestinationFolder>${project.build.directory}/generated-resources/static/css</cssDestinationFolder>
<jsDestinationFolder>${project.build.directory}/generated-resources/static/js</jsDestinationFolder>
<wroFile>${project.build.directory}/wro/wro.xml</wroFile>
<extraConfigFile>${basedir}/src/main/wro/wro.properties</extraConfigFile>
<contextFolder>${basedir}/src/main/wro</contextFolder>
</configuration>
<dependencies>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>jquery</artifactId>
<version>2.1.1</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>angularjs</artifactId>
<version>1.3.8</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>bootstrap</artifactId>
<version>3.2.0</version>
</dependency>
</dependencies>
</plugin>
Thanks in advance
Koenigstein

Thanks Daniele, that was my Mistake. Sometimes its easy like that :D

Spring Boot application fails to run - spring.resources.cache-period were left unbound

I'm having difficulties with my Spring Boot application which is not willing to run.
According to logs the reason of this situation is unbound spring.resources.cache-period property.
This property however is set in application.properties and compiler is even returning it's value.
I'll really appreciate if someone could lend me a hand with that issue.
Logs
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>com.gft</groupId>
<artifactId>app</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>app</name>
<description>Axon implementation for app project</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<axon.version>3.2</axon.version>
<junit.version>4.12</junit.version>
<lombok.version>1.16.20</lombok.version>
<assertj.version>3.9.1</assertj.version>
<jackson.version>2.9.5</jackson.version>
<hamcrest.version>1.3</hamcrest.version>
<s.dev.tools.version>1.3.0.RELEASE</s.dev.tools.version>
</properties>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- Axon -->
<dependency>
<groupId>org.axonframework</groupId>
<artifactId>axon-core</artifactId>
<version>${axon.version}</version>
</dependency>
<dependency>
<groupId>org.axonframework</groupId>
<artifactId>axon-spring-boot-starter</artifactId>
<version>${axon.version}</version>
</dependency>
<dependency>
<groupId>org.axonframework</groupId>
<artifactId>axon-test</artifactId>
<version>${axon.version}</version>
<scope>test</scope>
</dependency>
<!-- Testing -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-all</artifactId>
<version>${hamcrest.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<version>${s.dev.tools.version}</version>
</dependency>
<!-- Utilities -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>com.spotify</groupId>
<artifactId>docker-maven-plugin</artifactId>
<version>0.4.13</version>
<configuration>
<imageName>${project.artifactId}</imageName>
<baseImage>java</baseImage>
<entryPoint>["java", "-jar", "/${project.build.finalName}.jar"]</entryPoint>
<!-- copy the service's jar file from target into the root directory of the image -->
<resources>
<resource>
<targetPath>/</targetPath>
<directory>${project.build.directory}</directory>
<include>${project.build.finalName}.jar</include>
</resource>
</resources>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/lib</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
<mainClass>com.company.app.appApplication</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
application.properties

Just as #Stephane Nicoll suggested, I've changed spring-boot-devtools version to the one corresponding my Spring Boot version. This, along with deletion of previously provided spring.resources.cache-period property solved the issue.

I had the same problem.
You should remove the version to use spring-boot same version
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>

Also be aware of your user's global configuration file for devtools:
~/.spring-boot-devtools.properties
This might have deprecated values like the mentioned spring.resources.cache-period in it, that are no longer valid.
=> In my case, removing this old value solved the same error!
Also have a look at spring boot's documentation for the order of configurations:
https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-external-config.html#boot-features-external-config-application-property-files

Google Cloud Storage Runtime Error

I'm simply trying to list the contents of my Google Cloud Storage bucket from my GAE (java) using the following code:
GcsService gcsService = GcsServiceFactory.createGcsService(new RetryParams.Builder()
.initialRetryDelayMillis(10)
.retryMaxAttempts(10)
.totalRetryPeriodMillis(15000)
.build());
try{
ListResult list = gcsService.list("MyTestBucket", new ListOptions.Builder().setPrefix("testFolder").setRecursive(true).build());
}
It compiles, but when I run it I get the following error which I don't understand:
Caused by: java.lang.NoSuchMethodError: com.google.appengine.tools.cloudstorage.GcsService.list(Ljava/lang/String;Lcom/google/appengine/tools/cloudstorage/ListOptions;)Lcom/google/appengine/tools/cloudstorage/ListResult;
The POM dependency looks like this to include Google Storage:
<dependency>
<groupId>com.google.appengine.tools</groupId>
<artifactId>appengine-gcs-client</artifactId>
<version>0.6</version>
</dependency>
I've tried various <exclusions> but can't seem to make it work.
Thanks
Tim
POM File:
<?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>
<packaging>war</packaging>
<version>1.0</version>
<groupId>com.xyz.abc</groupId>
<artifactId>xyzclienttest</artifactId>
<properties>
<appengine.app.version>1</appengine.app.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<prerequisites>
<maven>3.1.0</maven>
</prerequisites>
<dependencies>
<!-- Compile/runtime dependencies -->
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-1.0-sdk</artifactId>
<version>1.9.54</version>
</dependency>
<dependency>
<groupId>com.google.appengine.tools</groupId>
<artifactId>appengine-gcs-client</artifactId>
<version>0.6</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
<version>2.17</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-moxy</artifactId>
<version>2.17</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.10</version>
</dependency>
<dependency>
<groupId>com.googlecode.objectify</groupId>
<artifactId>objectify</artifactId>
<version>5.1.5</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<dependency>
<groupId>javax.jdo</groupId>
<artifactId>jdo-api</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>com.github.mpkorstanje</groupId>
<artifactId>simmetrics-core</artifactId>
<version>3.2.3</version>
</dependency>
</dependencies>
<build> <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>versions-maven-plugin</artifactId>
<version>2.1</version>
<executions>
<execution>
<phase>compile</phase>
<goals>
<goal>display-dependency-updates</goal>
<goal>display-plugin-updates</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
</plugin>
<plugin>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-maven-plugin</artifactId>
<version>1.9.54</version>
<configuration>
<enableJarClasses>false</enableJarClasses>
<!-- Comment in the below snippet to bind to all IPs instead of just localhost -->
<!-- address>0.0.0.0</address>
<port>8080</port -->
<!-- Comment in the below snippet to enable local debugging with a remove debugger
like those included with Eclipse or IntelliJ -->
<!-- jvmFlags>
<jvmFlag>-agentlib:jdwp=transport=dt_socket,address=8000,server=y,suspend=n</jvmFlag>
</jvmFlags -->
</configuration>
</plugin>
</plugins>
</build>
<reporting>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>findbugs-maven-plugin</artifactId>
<configuration>
<!--
Enables analysis which takes more memory but finds more bugs.
If you run out of memory, changes the value of the effort element
to 'low'.
-->
<effort>Max</effort>
<!-- Reports all bugs (other values are medium and max) -->
<threshold>Low</threshold>
<onlyAnalyze>com.xyz.abc.*,com.xyz.abc.util.*</onlyAnalyze>
<!-- Produces XML report -->
<xmlOutput>true</xmlOutput>
<xmlOutputDirectory>target/site</xmlOutputDirectory>
</configuration>
</plugin>
</plugins>
</reporting>

Fixed it! I looked in the .war file and found that there were two versions of the appengine-gcs-client jar files. 0.2 and 0.6. I did an mvn clean and it sorted the problem. I really should have done that before :-( Live and learn!

Try removing <enableJarClasses>false</enableJarClasses>. I suspect this is causing the JAR for the GCS library not be be included in the artifact ran on GAE. As a result required classes might be missing.

Errors in the jar file

when I run it in eclipse and getting the output but I need this jar to run so that I need to create a batch file. My Manifest file has version and the classpath as this
Manifest-Version: 1.0
Main-Class: org.postprocessor.dao.DaoMain
I am I missing something here....thanks in advance
pom.xml
<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>SBP</groupId>
<artifactId>SBP</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>gt20047</name>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.1.RELEASE</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-asm -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-asm</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/asm/asm-all -->
<dependency>
<groupId>asm</groupId>
<artifactId>asm-all</artifactId>
<version>3.3.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.derby/derbynet -->
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derbynet</artifactId>
<version>10.12.1.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.derby/derbyclient -->
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derbyclient</artifactId>
<version>10.12.1.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>2.0.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-pool/commons-pool -->
<dependency>
<groupId>commons-pool</groupId>
<artifactId>commons-pool</artifactId>
<version>1.6</version>
</dependency>
<dependency>
<groupId>com.opencsv</groupId>
<artifactId>opencsv</artifactId>
<version>3.7</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-io -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>1.3.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>19.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-collections/commons-collections -->
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.0</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-csv</artifactId>
<version>1.3</version>
</dependency>
<dependency>
<groupId>net.lingala.zip4j</groupId>
<artifactId>zip4j</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
<build>
<finalName>gt20047</finalName>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>2.3</version>
<configuration>
<archive>
<manifest>
<!-- Jar file entry point -->
<mainClass>org.postprocessor.dao.DaoMain</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
</project>
here is my pom

This looks like a spring project in which case I would hope you have a pom.xml.
Either use the spring boot-plugin to produce an uber jar:
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.3.RELEASE</version>
</parent>
<groupId>com.foo</groupId>
<artifactId>bar</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
<properties>
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Or if you really want to roll your own use something like :
<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>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<manifestEntries>
<Main-Class>com.barclaycard.blackboxtester.Application</Main-Class>
<Build-Number>123</Build-Number>
</manifestEntries>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>