我想在我的项目上运行mvn test.项目本身编译和安装,但man测试失败,输出如下:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.18:test (default-test) on project udms-server: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.18:test failed: There was an error in the forked process
[ERROR] java.lang.UnsupportedClassVersionError: some/project/Event : Unsupported major.minor version 52.0
[ERROR] at java.lang.ClassLoader.defineClass1(Native Method)
[ERROR] at java.lang.ClassLoader.defineClass(Unknown Source)
[ERROR] at java.security.SecureClassLoader.defineClass(Unknown Source)
[ERROR] at java.net.URLClassLoader.defineClass(Unknown Source)
[ERROR] at java.net.URLClassLoader.access$100(Unknown Source)
[ERROR] at java.net.URLClassLoader$1.run(Unknown Source)
[ERROR] at java.net.URLClassLoader$1.run(Unknown Source)
[ERROR] at java.security.AccessController.doPrivileged(Native Method)
[ERROR] at java.net.URLClassLoader.findClass(Unknown Source)
[ERROR] at java.lang.ClassLoader.loadClass(Unknown Source)
[ERROR] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
[ERROR] at …如何修复com/android/dx/command/dexer/Main:不支持的major.minor版本52.0
我的单曲build.gradle如下：
buildscript {
ext {
springBootVersion = '2.0.0.BUILD-SNAPSHOT'
}
repositories {
mavenCentral()
maven { url "https://repo.spring.io/snapshot" }
maven { url "https://repo.spring.io/milestone" }
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
}
apply plugin: 'java'
apply plugin: 'org.springframework.boot'
compileJava {
sourceCompatibility = 1.8
targetCompatibility = 1.8
}
version = '0.0.1-SNAPSHOT'
sourceCompatibility = 1.8
targetCompatibility = 1.8
compileOptions {
sourceCompatibility sourceCompatibility
targetCompatibility targetCompatibility
}
repositories {
mavenCentral()
maven { url "https://repo.spring.io/snapshot" }
maven { url "https://repo.spring.io/milestone" }
}
dependencies {
compile('org.springframework.boot:spring-boot-starter-data-jpa')
compile('org.springframework.boot:spring-boot-starter-jdbc')
compile('org.springframework.boot:spring-boot-starter-security') …在tomcat上启动drools服务时遇到错误.
12-Jul-2017 11:16:42.203 INFO [http-nio-8090-exec-1] org.apache.catalina.core.ApplicationContext.log HTMLManager: start: Starting web application '/kie-drools-wb-7.0.0.Final-tomcat8'
12-Jul-2017 11:17:07.252 SEVERE [http-nio-8090-exec-1] org.apache.catalina.core.ApplicationContext.log FAIL - Application at context path [/kie-drools-wb-7.0.0.Final-tomcat8] could not be started
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/kie-drools-wb-7.0.0.Final-tomcat8]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
at org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1307)
at org.apache.catalina.manager.HTMLManagerServlet.start(HTMLManagerServlet.java:665)
at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:211)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:136)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624) …GP是.exe我从这里下载的文件.当我尝试运行它时,我收到以下错误:
C:\GPP> gp -list
Exception in thread "main" java.lang.UnsupportedClassVersionError: pro/javacard/gp/GPTool : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
C:\GPP>
我该怎么处理？我应该删除JRE并安装新版本还是旧版本？
我当前的版本:
C:\GPP> java -version
java version "1.7.0_21"
Java(TM) SE Runtime Environment (build 1.7.0_21-b11)
Java HotSpot(TM) 64-Bit Server VM (build 23.21-b01, …推荐的Cassandra 2.0版Java 是Java 7.但Cassandra 3(特别是3.5版)推荐或要求使用哪个版本？
一些信息表明需要Java 7或Java 8; 也就是说,Java 7仍然可以:
Cassandra需要最稳定的Java 7或8版本
我搜索了这个问题，例如
如何修复 java.lang.UnsupportedClassVersionError: Unsupported major.minor version
但答案对我不起作用
我正在使用 jdk 1.7，我将编译器设置为 1.7.0_79，这意味着是 java 7，但是当我运行时，我仍然收到错误，我将项目字节码版本设置为 1.7 但同样的消息
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/hibernate/jpa/HibernatePersistenceProvider : Unsupported major.minor version 52.0
尝试在此行加载persistence.xml 时发生此异常
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
并在这一行的java代码中
EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("sample");
我想用Qt为Android制作应用程序(后来希望iOS).我已下载Android SDK Manager命令行工具并运行sdkmanager --list,但它出现以下错误:
C:\ Users\MyUser\Development\Android\sdk\tools\bin> sdkmanager --list
线程"main"中的异常java.lang.UnsupportedClassVersionError:com/android/sdklib/tool/SdkManagerCli:java.lang.ClassLoader.defineClass(ClassLoader)java.lang.ClassLoader.defineClass1(Native Method)中不支持的major.minor版本52.0 .java:800)java.net.URLC上的java.securityClassLoader.defineClass(SecureClassLoader.java:142)java.net.URLClassLoader.defineClass(URLClassLoader.java:449),java.net.URLClassLoader.access $ 100(URLClassLoader.java:71 )java.net.URLClassLoader $ 1.run(URLClassLoader.java:361)at java.net.URLClassLoader $ 1.run(URLClassLoader.java:355)at java.security.AccessController.doPrivileged(Native Method)at java.net. URLClassLoader.findClass(URLClassLoader.java:354)at java.lang.ClassLoader.loadClass(ClassLoader.java:425)at sun.misc.Launcher $ AppClassLoader.loadClass(Launcher.java:308)at java.lang.ClassLoader.loadClass (ClassLoader.java:358)at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
我正在使用Windows 10.
我已将SDK Manager的路径添加到Windows环境路径,并尝试从bin目录和另一个目录运行该命令.我仍然得到错误.
一些类似的问题建议检查/更新Java SE Development Kit.我已经尝试了版本7,8和9,但我仍然得到相同的错误.
我还尝试以管理员身份运行命令提示符.还是一样的错误.
我完全没有想法......
有谁知道我做错了什么？我以前没有Android应用程序开发或Java的经验.
我在我的系统上使用stanford-classifier-3.5.1 jar并尝试仅运行示例分类器.我收到以下错误:
Exception in thread "main" java.lang.UnsupportedClassVersionError: edu/stanford/nlp/classify/ColumnDataClassifier : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at ClassifierDemoStanford.main(ClassifierDemoStanford.java:20)
我试过Java版本1.6,1.7.自述文件说该软件需要Java 5(JDK 1.6.0+).请帮忙.
链接问题:https://github.com/jenca-cloud/docker-bimserver/issues/1
链接到Dockerfile:https://hub.docker.com/r/connoralexander/docker-bimserver/
大家好,我遇到Tomcat 8无法启动服务的问题.使用set username和password成功安装Tomcat 8.0.30.它成功地获取了BIMserver的最新.war文件版本并根据配置自动部署.然后BIMserver服务无法启动.在转到Tomcat管理器后,我们无法手动启动服务,因为它会抛出错误FAIL - Application at context path /BIMserver could not be started
我已经尝试使用以前版本的Tomcat 8和7但是得到了相同的错误.关于启动听众的问题可能是什么？
从catalina日志:
...
05-Jan-2016 11:30:58.047 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
05-Jan-2016 11:30:58.051 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 11752 ms
05-Jan-2016 11:33:02.276 SEVERE [http-nio-8080-exec-5] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file
05-Jan-2016 11:33:02.277 SEVERE [http-nio-8080-exec-5] org.apache.catalina.core.StandardContext.startInternal Context [/BIMserver] startup failed due to previous errors …