最近在执行bash gradlew clean build之后，macOS Catalina(10.15.6)系统处于长时间的卡顿状态。尽管已经编译结束了，依旧要持续非常长的一段时间才能恢复顺畅。
在执行top命令之后，发现进程mds,mds_stores 持续维持在高负荷运行状态，基本上把CPU跟磁盘IO全部占用。
网上搜索了一下，这两个服务是macOS Catalina(10.15.6)系统的索引服务，由于编译过程中瞬间删除，又重新产生大量的临时文件，数量在几万个，大小达到若干GB。索引服务尝试对这些文件进行索引，引起极大的系统开销。
解决方法就是临时或者永久关闭索引服务
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$ sudo mdutil -a -i off |
重新打开的话，执行
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$ sudo mdutil -a -i on |
macOS Catalina 10.15.6，使用HomeBrew执行brew install java,安装了目前最新的openjdk-14.0.1之后，执行bash gradlew clean build,报告如下错误信息：
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com.xxxx.plugin.face.FaceTest > executeAsync_Success FAILED java.lang.RuntimeException at ReflectionHelpers.java:223 Caused by: java.lang.RuntimeException at ReflectionHelpers.java:208 Caused by: java.lang.IllegalAccessException at UnsafeFieldAccessorImpl.java:76 |
目前测试发现，升级Robolectric版本并不能解决问题。其实对于Android Studio来说，完全可以指定Android Studio自带的JDK进行编译。
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$ echo "export JAVA_HOME='/Applications/Android Studio.app/Contents/jre/jdk/Contents/Home'" >> ~/.bashrc $ source ~/.bashrc # 由于macOS Catalina 10.15.6已经切换到zsh了，因此需要配置zsh的配置文件 $ echo "export JAVA_HOME='/Applications/Android Studio.app/Contents/jre/jdk/Contents/Home'" >> ~/.zprofile $ source ~/.zprofile |
关闭SHELL，之后重新打开新的SHELL，重新执行编译命令即可。
建议Android版本发布使用的JDK就是Android Studio自带的JDK，这样可以保证应用的稳定性，减少由于JDK差异导致的各种问题。
当前建议的版本
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$ java -version openjdk version "1.8.0_242-release" OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593) OpenJDK 64-Bit Server VM (build 25.242-b3-6222593, mixed mode) |
使用Robolectric进行Android代码测试的时候，随着测试用例的增多，可能会报告如下错误（Windows下常见）：
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> Task :biz-h5:testDebugUnitTest com.xxxx.plugin.face.FaceTest > executeAsync_Success FAILED org.mockito.exceptions.base.MockitoException at FaceTest.java:71 Caused by: java.lang.ClassCastException at FaceTest.java:71 |
原因为Mockto使用了编译缓存导致加载类的时候出现异常。解决方法是禁止Mockto缓存测试类的代码。
在Android测试项目的src/test/java下创建一个名为org.mockito.configuration的包,然后实现一个名为MockitoConfiguration.java的类，如下：
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package org.mockito.configuration; public class MockitoConfiguration extends DefaultMockitoConfiguration { @Override public boolean enableClassCache() { return false; } } |
这样当再次执行测试用例的时候，就已经不使用缓存了。
macOS Catalina 10.15.6，使用HomeBrew执行brew install java,安装了目前最新的openjdk-14.0.1之后，执行bash gradlew clean build,报告如下错误信息：
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java.lang.NoClassDefFoundError: Could not initialize class org.codehaus.groovy.vmplugin.v7.Java7 at org.codehaus.groovy.vmplugin.VMPluginFactory.<clinit>(VMPluginFactory.java:43) at org.codehaus.groovy.reflection.GroovyClassValueFactory.<clinit>(GroovyClassValueFactory.java:35) at org.codehaus.groovy.reflection.ClassInfo.<clinit>(ClassInfo.java:107) at org.codehaus.groovy.reflection.ReflectionCache.getCachedClass(ReflectionCache.java:95) at org.codehaus.groovy.reflection.ReflectionCache.<clinit>(ReflectionCache.java:39) at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.registerMethods(MetaClassRegistryImpl.java:210) at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.<init>(MetaClassRegistryImpl.java:108) at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.<init>(MetaClassRegistryImpl.java:86) at groovy.lang.GroovySystem.<clinit>(GroovySystem.java:36) at org.codehaus.groovy.runtime.InvokerHelper.<clinit>(InvokerHelper.java:86) at groovy.lang.GroovyObjectSupport.getDefaultMetaClass(GroovyObjectSupport.java:59) at groovy.lang.GroovyObjectSupport.<init>(GroovyObjectSupport.java:32) at org.gradle.internal.extensibility.DefaultExtraPropertiesExtension.<init>(DefaultExtraPropertiesExtension.java:29) at org.gradle.internal.extensibility.DefaultConvention.<init>(DefaultConvention.java:49) at org.gradle.internal.extensibility.ExtensibleDynamicObject.<init>(ExtensibleDynamicObject.java:60) at org.gradle.internal.instantiation.generator.MixInExtensibleDynamicObject.<init>(MixInExtensibleDynamicObject.java:35) at org.gradle.initialization.DefaultSettings_Decorated.getAsDynamicObject(Unknown Source) at org.gradle.initialization.SettingsFactory.createSettings(SettingsFactory.java:58) at org.gradle.initialization.ScriptEvaluatingSettingsProcessor.process(ScriptEvaluatingSettingsProcessor.java:61) at org.gradle.initialization.PropertiesLoadingSettingsProcessor.process(PropertiesLoadingSettingsProcessor.java:38) at org.gradle.initialization.SettingsEvaluatedCallbackFiringSettingsProcessor.process(SettingsEvaluatedCallbackFiringSettingsProcessor.java:34) at org.gradle.initialization.RootBuildCacheControllerSettingsProcessor.process(RootBuildCacheControllerSettingsProcessor.java:36) at org.gradle.initialization.BuildOperationSettingsProcessor$2.call(BuildOperationSettingsProcessor.java:50) at org.gradle.initialization.BuildOperationSettingsProcessor$2.call(BuildOperationSettingsProcessor.java:47) at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416) at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406) at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165) at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250) at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158) at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102) at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36) at org.gradle.initialization.BuildOperationSettingsProcessor.process(BuildOperationSettingsProcessor.java:47) at org.gradle.initialization.DefaultSettingsLoader.findSettingsAndLoadIfAppropriate(DefaultSettingsLoader.java:102) at org.gradle.initialization.DefaultSettingsLoader.findAndLoadSettings(DefaultSettingsLoader.java:45) at org.gradle.initialization.SettingsAttachingSettingsLoader.findAndLoadSettings(SettingsAttachingSettingsLoader.java:35) at org.gradle.internal.composite.CommandLineIncludedBuildSettingsLoader.findAndLoadSettings(CommandLineIncludedBuildSettingsLoader.java:34) at org.gradle.internal.composite.ChildBuildRegisteringSettingsLoader.findAndLoadSettings(ChildBuildRegisteringSettingsLoader.java:52) at org.gradle.internal.composite.CompositeBuildSettingsLoader.findAndLoadSettings(CompositeBuildSettingsLoader.java:35) at org.gradle.initialization.DefaultSettingsPreparer.prepareSettings(DefaultSettingsPreparer.java:36) at org.gradle.initialization.BuildOperatingFiringSettingsPreparer$LoadBuild.doLoadBuild(BuildOperatingFiringSettingsPreparer.java:59) at org.gradle.initialization.BuildOperatingFiringSettingsPreparer$LoadBuild.run(BuildOperatingFiringSettingsPreparer.java:54) at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402) at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394) at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165) at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250) at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158) at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92) at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31) at org.gradle.initialization.BuildOperatingFiringSettingsPreparer.prepareSettings(BuildOperatingFiringSettingsPreparer.java:42) at org.gradle.initialization.DefaultGradleLauncher.prepareSettings(DefaultGradleLauncher.java:197) at org.gradle.initialization.DefaultGradleLauncher.doClassicBuildStages(DefaultGradleLauncher.java:141) at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:130) at org.gradle.initialization.DefaultGradleLauncher.executeTasks(DefaultGradleLauncher.java:110) at org.gradle.internal.invocation.GradleBuildController$1.execute(GradleBuildController.java:60) at org.gradle.internal.invocation.GradleBuildController$1.execute(GradleBuildController.java:57) at org.gradle.internal.invocation.GradleBuildController$3.create(GradleBuildController.java:85) at org.gradle.internal.invocation.GradleBuildController$3.create(GradleBuildController.java:78) at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:189) at org.gradle.internal.work.StopShieldingWorkerLeaseService.withLocks(StopShieldingWorkerLeaseService.java:40) at org.gradle.internal.invocation.GradleBuildController.doBuild(GradleBuildController.java:78) at org.gradle.internal.invocation.GradleBuildController.run(GradleBuildController.java:57) at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:31) at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35) at org.gradle.launcher.exec.BuildOutcomeReportingBuildActionRunner.run(BuildOutcomeReportingBuildActionRunner.java:63) at org.gradle.tooling.internal.provider.ValidatingBuildActionRunner.run(ValidatingBuildActionRunner.java:32) at org.gradle.launcher.exec.BuildCompletionNotifyingBuildActionRunner.run(BuildCompletionNotifyingBuildActionRunner.java:39) at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$3.call(RunAsBuildOperationBuildActionRunner.java:51) at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$3.call(RunAsBuildOperationBuildActionRunner.java:45) at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416) at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406) at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165) at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250) at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158) at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102) at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36) at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner.run(RunAsBuildOperationBuildActionRunner.java:45) at org.gradle.launcher.exec.InProcessBuildActionExecuter$1.transform(InProcessBuildActionExecuter.java:50) at org.gradle.launcher.exec.InProcessBuildActionExecuter$1.transform(InProcessBuildActionExecuter.java:47) at org.gradle.composite.internal.DefaultRootBuildState.run(DefaultRootBuildState.java:80) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:47) at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:31) at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:42) at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:28) at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:78) at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:52) at org.gradle.tooling.internal.provider.SubscribableBuildActionExecuter.execute(SubscribableBuildActionExecuter.java:60) at org.gradle.tooling.internal.provider.SubscribableBuildActionExecuter.execute(SubscribableBuildActionExecuter.java:38) at org.gradle.tooling.internal.provider.SessionScopeBuildActionExecuter.execute(SessionScopeBuildActionExecuter.java:68) at org.gradle.tooling.internal.provider.SessionScopeBuildActionExecuter.execute(SessionScopeBuildActionExecuter.java:38) at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:37) at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:26) at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:43) at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:29) at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:60) at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:32) at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:55) at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:41) at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:48) at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:32) at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:68) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104) at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:39) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104) at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:27) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104) at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:35) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104) at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.create(ForwardClientInput.java:78) at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.create(ForwardClientInput.java:75) at org.gradle.util.Swapper.swap(Swapper.java:38) at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:75) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104) at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104) at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:63) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104) at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:82) at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:37) at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:104) at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:52) at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:297) at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64) at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56) at java.base/java.lang.Thread.run(Thread.java:832) FAILURE: Build failed with an exception. |
修改
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distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip |
为
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distributionUrl=https\://services.gradle.org/distributions/gradle-6.6-all.zip |
就行了 。
出现原因是这个版本的gradle 对macOS版本支持的不是很完善(其实是JDK的版本适配问题）。Windows版本打包倒是没有问题（Windows用openjdk-14.0.1一样有问题)。
java.lang.NoClassDefFoundError: Could not initialize class org.codehaus.groovy.vmplugin.v7.Ja【已解决】
最近更新HomeBrew的时候，一直报错，如下：
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$ brew update fatal: could not read Username for 'https://github.com': terminal prompts disabled |
执行
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$ git config --global --add url."git@github.com:".insteadOf "https://github.com/" $ brew update Host key verification failed. fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. Host key verification failed. fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. Host key verification failed. fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. Host key verification failed. fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. Error: Fetching /usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask failed! homebrew/homebrew-science does not exist! Run `brew untap homebrew/homebrew-science` to remove it. Fetching /usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask-versions failed! Fetching /usr/local/Homebrew/Library/Taps/homebrew/homebrew-services failed! |
执行如下命令即可：
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$ brew untap homebrew/homebrew-science $ brew untap homebrew/homebrew-cask-versions $ brew untap homebrew/homebrew-services $ git config --global --remove-section url."git@github.com:" |
Git Error: Could could not read Username for 'https://github.com': terminal prompts disabled
使用域名访问群晖服务器上的网站的时候，报告500错误（直接使用IP地址访问的时候，不会报错），如下图：
第一步：下载下载地址：https://www.macz.com/mac/6487.html
第二步：解压后直接打开，会弹出一个对话框，这时在你的touchbar上就可以看到了
自定义WordPress插件的时候，需要判断当前用户的角色是不是网站管理员，如果是管理员的情况下才允许使用插件功能，否则禁止使用。
对于自定义主题的情况，可以使用如下代码：
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function is_administrator() { // wp_get_current_user函数仅限在主题的functions.php中使用 $currentUser = wp_get_current_user(); if(!empty($currentUser->roles) && in_array('administrator', $currentUser->roles)) return True; // 是管理员 else return False; // 非管理员 } |
对于自定义插件的情况，可以使用如下代码：
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function is_administrator() { if( is_user_logged_in() ) { //用户已登录，检查用户角色 global $current_user; if((!empty($current_user)) && (!empty($current_user->roles)) && in_array('administrator', $current_user->roles)) return True; // 是管理员 } return False; // 非管理员 } |
更简单的代码如下：
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function is_administrator() { if( current_user_can( 'manage_options' ) ) { return True; } return False; // 非管理员 } |
重新安装的ubuntu 18.04系统上初次安装python3-pip之后，执行升级命令，出现如下错误信息：
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$ sudo apt-get install python3-pip $ sudo pip3 install --upgrade pip Traceback (most recent call last): File "/usr/local/bin/pip3", line 7, in <module> from pip._internal import main ModuleNotFoundError: No module named 'pip._internal' |
解决方法为重新升级安装一次 pip，如下：
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$ python3 -m pip install --upgrade pip |
今天在执行brew upgrade的时候出现如下错误：
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$ brew upgrade Updating Homebrew... Error: Cask 'java7' is unreadable: undefined method `undent' for #<String:0x00007fcff5421ec8> |
原因为某次更新之后，配置文件增加了某些不必要的字段。更要命的是，不能执行卸载命令来删除出问题的安装包。解决方法为删除这个字段。
方案如下：
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$ find "$(brew --prefix)/Caskroom/"java7'/.metadata' -type f -name '*.rb' | xargs grep 'EOS.undent' --files-with-matches | xargs sed -i '' 's/EOS.undent/EOS/' $ find "$(brew --prefix)/Caskroom/"java'/.metadata' -type f -name '*.rb' | xargs grep 'EOS.undent' --files-with-matches | xargs sed -i '' 's/EOS.undent/EOS/' $ brew uninstall java7 $ brew cleanup $ brew update $ brew upgrade |