spring - Could not get the value for parameter contextFolder for plugin execution default -

i developing spring boot application based on spring security demo. got following error in pom.xml file when try execute application. complete code uploaded in github. using eclipse ide spring plugin. configured spring boot folder structure, wro folder , resources. spring security, spring boot , angular js being used single page application. so, far spring security not implemented in demo.

could not value parameter contextfolder plugin execution default (ro.isdc.wro4j:wro4j-maven-plugin:1.8.0:run:default:generate-resources)  org.eclipse.core.runtime.coreexception: not value parameter contextfolder plugin execution default     @ org.eclipse.m2e.core.internal.embedder.mavenimpl.getmojoparametervalue(mavenimpl.java:950)     @ org.jboss.tools.m2e.wro4j.internal.wro4jbuildparticipant.getcontextroots(wro4jbuildparticipant.java:151)     @ org.jboss.tools.m2e.wro4j.internal.wro4jbuildparticipant.build(wro4jbuildparticipant.java:86)     @ org.eclipse.m2e.core.internal.builder.mavenbuilderimpl.build(mavenbuilderimpl.java:137)     @ org.eclipse.m2e.core.internal.builder.mavenbuilder$1.method(mavenbuilder.java:172)     @ org.eclipse.m2e.core.internal.builder.mavenbuilder$1.method(mavenbuilder.java:1)     @ org.eclipse.m2e.core.internal.builder.mavenbuilder$buildmethod$1$1.call(mavenbuilder.java:115)     @ org.eclipse.m2e.core.internal.embedder.mavenexecutioncontext.executebare(mavenexecutioncontext.java:176)     @ org.eclipse.m2e.core.internal.embedder.mavenexecutioncontext.execute(mavenexecutioncontext.java:112)     @ org.eclipse.m2e.core.internal.builder.mavenbuilder$buildmethod$1.call(mavenbuilder.java:105)     @ org.eclipse.m2e.core.internal.embedder.mavenexecutioncontext.executebare(mavenexecutioncontext.java:176)     @ org.eclipse.m2e.core.internal.embedder.mavenexecutioncontext.execute(mavenexecutioncontext.java:151)     @ org.eclipse.m2e.core.internal.embedder.mavenexecutioncontext.execute(mavenexecutioncontext.java:99)     @ org.eclipse.m2e.core.internal.builder.mavenbuilder$buildmethod.execute(mavenbuilder.java:86)     @ org.eclipse.m2e.core.internal.builder.mavenbuilder.build(mavenbuilder.java:200)     @ org.eclipse.core.internal.events.buildmanager$2.run(buildmanager.java:735)     @ org.eclipse.core.runtime.saferunner.run(saferunner.java:42)     @ org.eclipse.core.internal.events.buildmanager.basicbuild(buildmanager.java:206)     @ org.eclipse.core.internal.events.buildmanager.basicbuild(buildmanager.java:246)     @ org.eclipse.core.internal.events.buildmanager$1.run(buildmanager.java:301)     @ org.eclipse.core.runtime.saferunner.run(saferunner.java:42)     @ org.eclipse.core.internal.events.buildmanager.basicbuild(buildmanager.java:304)     @ org.eclipse.core.internal.events.buildmanager.basicbuildloop(buildmanager.java:360)     @ org.eclipse.core.internal.events.buildmanager.build(buildmanager.java:383)     @ org.eclipse.core.internal.events.autobuildjob.dobuild(autobuildjob.java:144)     @ org.eclipse.core.internal.events.autobuildjob.run(autobuildjob.java:235)     @ org.eclipse.core.internal.jobs.worker.run(worker.java:55) caused by: org.apache.maven.plugin.pluginresolutionexception: plugin ro.isdc.wro4j:wro4j-maven-plugin:1.8.0 or 1 of dependencies not resolved: failed collect dependencies @ ro.isdc.wro4j:wro4j-maven-plugin:jar:1.8.0 -> org.webjars:jquery:jar:${jquery.version}     @ org.apache.maven.plugin.internal.defaultplugindependenciesresolver.resolveinternal(defaultplugindependenciesresolver.java:214)     @ org.apache.maven.plugin.internal.defaultplugindependenciesresolver.resolve(defaultplugindependenciesresolver.java:149)     @ org.eclipse.m2e.core.internal.project.registry.eclipseplugindependenciesresolver.resolve(eclipseplugindependenciesresolver.java:59)     @ org.apache.maven.plugin.internal.defaultmavenpluginmanager.createpluginrealm(defaultmavenpluginmanager.java:400)     @ org.apache.maven.plugin.internal.defaultmavenpluginmanager.setuppluginrealm(defaultmavenpluginmanager.java:372)     @ org.apache.maven.plugin.defaultbuildpluginmanager.getpluginrealm(defaultbuildpluginmanager.java:231)     @ org.eclipse.m2e.core.internal.embedder.mavenimpl.getmojoparametervalue(mavenimpl.java:925)     ... 26 more caused by: org.eclipse.aether.collection.dependencycollectionexception: failed collect dependencies @ ro.isdc.wro4j:wro4j-maven-plugin:jar:1.8.0 -> org.webjars:jquery:jar:${jquery.version}     @ org.eclipse.aether.internal.impl.defaultdependencycollector.collectdependencies(defaultdependencycollector.java:291)     @ org.eclipse.aether.internal.impl.defaultrepositorysystem.collectdependencies(defaultrepositorysystem.java:316)     @ org.apache.maven.plugin.internal.defaultplugindependenciesresolver.resolveinternal(defaultplugindependenciesresolver.java:202)     ... 32 more caused by: org.eclipse.aether.resolution.artifactdescriptorexception: failed read artifact descriptor org.webjars:jquery:jar:${jquery.version}     @ org.apache.maven.repository.internal.defaultartifactdescriptorreader.loadpom(defaultartifactdescriptorreader.java:282)     @ org.apache.maven.repository.internal.defaultartifactdescriptorreader.readartifactdescriptor(defaultartifactdescriptorreader.java:198)     @ org.eclipse.aether.internal.impl.defaultdependencycollector.resolvecachedartifactdescriptor(defaultdependencycollector.java:535)     @ org.eclipse.aether.internal.impl.defaultdependencycollector.getartifactdescriptorresult(defaultdependencycollector.java:519)     @ org.eclipse.aether.internal.impl.defaultdependencycollector.processdependency(defaultdependencycollector.java:409)     @ org.eclipse.aether.internal.impl.defaultdependencycollector.processdependency(defaultdependencycollector.java:363)     @ org.eclipse.aether.internal.impl.defaultdependencycollector.process(defaultdependencycollector.java:351)     @ org.eclipse.aether.internal.impl.defaultdependencycollector.collectdependencies(defaultdependencycollector.java:254)     ... 34 more caused by: org.eclipse.aether.resolution.artifactresolutionexception: failure transfer org.webjars:jquery:pom:${jquery.version} https://repo.spring.io/libs-release cached in local repository, resolution not reattempted until update interval of spring-releases has elapsed or updates forced. original error: not transfer artifact org.webjars:jquery:pom:${jquery.version} from/to spring-releases (https://repo.spring.io/libs-release): failed transfer https://repo.spring.io/libs-release/org/webjars/jquery/${jquery.version}/jquery-${jquery.version}.pom. error code 400, bad request     @ org.eclipse.aether.internal.impl.defaultartifactresolver.resolve(defaultartifactresolver.java:444)     @ org.eclipse.aether.internal.impl.defaultartifactresolver.resolveartifacts(defaultartifactresolver.java:246)     @ org.eclipse.aether.internal.impl.defaultartifactresolver.resolveartifact(defaultartifactresolver.java:223)     @ org.apache.maven.repository.internal.defaultartifactdescriptorreader.loadpom(defaultartifactdescriptorreader.java:267)     ... 41 more caused by: org.eclipse.aether.transfer.artifacttransferexception: failure transfer org.webjars:jquery:pom:${jquery.version} https://repo.spring.io/libs-release cached in local repository, resolution not reattempted until update interval of spring-releases has elapsed or updates forced. original error: not transfer artifact org.webjars:jquery:pom:${jquery.version} from/to spring-releases (https://repo.spring.io/libs-release): failed transfer https://repo.spring.io/libs-release/org/webjars/jquery/${jquery.version}/jquery-${jquery.version}.pom. error code 400, bad request     @ org.eclipse.aether.internal.impl.defaultupdatecheckmanager.newexception(defaultupdatecheckmanager.java:238)     @ org.eclipse.aether.internal.impl.defaultupdatecheckmanager.checkartifact(defaultupdatecheckmanager.java:206)     @ org.eclipse.aether.internal.impl.defaultartifactresolver.gatherdownloads(defaultartifactresolver.java:585)     @ org.eclipse.aether.internal.impl.defaultartifactresolver.performdownloads(defaultartifactresolver.java:503)     @ org.eclipse.aether.internal.impl.defaultartifactresolver.resolve(defaultartifactresolver.java:421)     ... 44 more     pom.xml /springbootdemo line 108    maven build problem 

and pom.xml 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>      <groupid>com.example</groupid>     <artifactid>springbootdemo</artifactid>     <version>0.0.1-snapshot</version>     <packaging>jar</packaging>      <name>springbootdemo</name>     <description>demo project spring boot</description>      <parent>         <groupid>org.springframework.boot</groupid>         <artifactid>spring-boot-starter-parent</artifactid>         <version>1.5.6.release</version>         <relativepath/>      </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-data-jpa</artifactid>         </dependency> -->         <dependency>             <groupid>org.springframework.boot</groupid>             <artifactid>spring-boot-starter-data-rest</artifactid>         </dependency>          <dependency>             <groupid>org.springframework.boot</groupid>             <artifactid>spring-boot-starter-web</artifactid>         </dependency>          <dependency>             <groupid>mysql</groupid>             <artifactid>mysql-connector-java</artifactid>             <scope>runtime</scope>         </dependency>         <dependency>             <groupid>org.springframework.boot</groupid>             <artifactid>spring-boot-starter-test</artifactid>             <scope>test</scope>         </dependency>         <dependency>             <groupid>org.springframework.security</groupid>             <artifactid>spring-security-test</artifactid>             <scope>test</scope>         </dependency>         <dependency>             <groupid>com.jayway.jsonpath</groupid>             <artifactid>json-path</artifactid>             <scope>test</scope>         </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>         <artifactid>maven-resources-plugin</artifactid>         <executions>           <execution>             <!-- serves *only* filter wro.xml can absolute                           path project -->             <id>copy-resources</id>             <phase>validate</phase>             <goals>               <goal>copy-resources</goal>             </goals>             <configuration>               <outputdirectory>${basedir}/target/wro</outputdirectory>               <resources>                 <resource>                   <directory>src/main/wro</directory>                   <filtering>true</filtering>                 </resource>               </resources>             </configuration>           </execution>         </executions>       </plugin>     <plugin>       <groupid>org.springframework.boot</groupid>       <artifactid>spring-boot-maven-plugin</artifactid>     </plugin>     <plugin>       <groupid>ro.isdc.wro4j</groupid>       <artifactid>wro4j-maven-plugin</artifactid>       <version>1.8.0</version>       <executions>         <execution>           <phase>generate-resources</phase>           <goals>             <goal>run</goal>           </goals>         </execution>       </executions>       <configuration>         <wromanagerfactory>ro.isdc.wro.maven.plugin.manager.factory.configurablewromanagerfactory</wromanagerfactory>         <cssdestinationfolder>${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>${project.build.directory}/wro/wro.properties</extraconfigfile>         <contextfolder>${project.build.directory}/wro</contextfolder>       </configuration>       <dependencies>         <dependency>           <groupid>org.webjars</groupid>           <artifactid>jquery</artifactid>           <version>${jquery.version}</version>         </dependency>         <dependency>           <groupid>org.webjars</groupid>           <artifactid>angularjs</artifactid>           <version>${angularjs.version}</version>         </dependency>         <dependency>           <groupid>org.webjars</groupid>           <artifactid>bootstrap</artifactid>           <version>${bootstrap.version}</version>         </dependency>       </dependencies>     </plugin>   </plugins> </build>      <repositories>         <repository>             <id>spring-releases</id>             <url>https://repo.spring.io/libs-release</url>         </repository>     </repositories>      <pluginrepositories>         <pluginrepository>             <id>spring-releases</id>             <url>https://repo.spring.io/libs-release</url>         </pluginrepository>     </pluginrepositories>  </project>