[INFO] Error stacktraces are turned on. [INFO] Scanning for projects… [WARNING] [WARNING] Some problems were encountered while building the effective model for com.alibaba:dubbo-admin:war:2.5.8 [WARNING] ‘build.plugins.plugin.version’ for org.apache.maven.plugins:maven-compiler-plugin is missing. @ com.alibaba:dubbo-parent:2.5.8, /Users/xxx/Documents/PrayerData/GitRepo/dubbo/pom.xml, line 465, column 21 [WARNING] ‘build.plugins.plugin.version’ for org.apache.maven.plugins:maven-surefire-plugin is missing. @ com.alibaba:dubbo-parent:2.5.8, /Users/xxx/Documents/PrayerData/GitRepo/dubbo/pom.xml, line 388, column 21 [WARNING] ‘build.plugins.plugin.version’ for org.apache.maven.plugins:maven-jar-plugin is missing. @ com.alibaba:dubbo-parent:2.5.8, /Users/xxx/Documents/PrayerData/GitRepo/dubbo/pom.xml, line 374, column 21 [WARNING] ‘build.plugins.plugin.version’ for org.apache.maven.plugins:maven-source-plugin is missing. @ com.alibaba:dubbo-parent:2.5.8, /Users/xxx/Documents/PrayerData/GitRepo/dubbo/pom.xml, line 475, column 21 [WARNING] ‘build.plugins.plugin.version’ for org.apache.maven.plugins:maven-deploy-plugin is missing. @ com.alibaba:dubbo-parent:2.5.8, /Users/xxx/Documents/PrayerData/GitRepo/dubbo/pom.xml, line 458, column 21 [WARNING] [WARNING] It is highly recommended to fix these problems because they threaten the stability of your build. [WARNING] [WARNING] For this reason, future Maven versions might no longer support building such malformed projects. [WARNING] [INFO] [INFO] ———————————————————————— [INFO] Building dubbo-admin 2.5.8 [INFO] ———————————————————————— [WARNING] The POM for io.netty:netty:jar:3.10.5.Final is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details [INFO] [INFO] — maven-resources-plugin:2.6:resources (default-resources) @ dubbo-admin — [INFO] Using ‘UTF-8’ encoding to copy filtered resources. [INFO] Copying 1 resource [INFO] [INFO] — maven-compiler-plugin:3.1:compile (default-compile) @ dubbo-admin — [INFO] Changes detected – recompiling the module! [INFO] Compiling 130 source files to /Users/xxx/Documents/PrayerData/GitRepo/dubbo/dubbo-admin/target/classes [INFO] ———————————————————————— [INFO] BUILD FAILURE [INFO] ———————————————————————— [INFO] Total time: 1.799 s [INFO] Finished at: 2017-06-09T19:24:06+08:00 [INFO] Final Memory: 12M/155M [INFO] ———————————————————————— [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project dubbo-admin: Compilation failure -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project dubbo-admin: Compilation failure at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:51) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:309) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:194) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:107) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:955) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290) at org.apache.maven.cli.MavenCli.main (MavenCli.java:194) 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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356) Caused by: org.apache.maven.plugin.compiler.CompilationFailureException: Compilation failure at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute (AbstractCompilerMojo.java:862) at org.apache.maven.plugin.compiler.CompilerMojo.execute (CompilerMojo.java:129) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:134) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:51) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:309) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:194) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:107) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:955) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290) at org.apache.maven.cli.MavenCli.main (MavenCli.java:194) 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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356) [ERROR] [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
如果安装正常，按下Enter键后不会出现任何异常信息。我在ubuntu server 16.04上安装后，验证时报如下错误：
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import factory File "/venv/lib64/python3.5/site-packages/factory/__init__.py", line 46, in <module> from .faker import Faker File "/venv/lib64/python3.5/site-packages/factory/faker.py", line 41, in <module> import faker File "/venv/lib64/python3.5/site-packages/faker/__init__.py", line 7, in <module> raise ImportError(error) ImportError: The ``fake-factory`` package is now called ``Faker``.
public class FatherA { private String a; public String getA() { return a; } public void setA(String a) { this.a = a; } }
子类
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public class Children extends FatherA { private String b; public String getB() { return b; } public void setB(String b) { this.b = b; } }
实现
ArrayList和ArrayList是两个不同的泛型
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public class Test { public static void main(String[] args) { Children cl = new Children(); cl.setB("1"); cl.setA("2"); List<Children> list = new ArrayList<Children>(); list.add(cl); getA(list); System.out.println(cl.getA()); } private static <T extends FatherA> void getA(List<T> list) { for (int i = 0; i < list.size(); i++) { list.get(i).setA("3"); } } }