Mac os 下打开java内存分析工具 mat
- 2019 年 10 月 7 日
- 笔记
下载MAT后, 解压得到mat.app, 但是直接点击打开出错, 显示错误信息在文件
/Users/along/.eclipse/762171948_macosx_cocoa_x86_64/configuration/1539580415773.log中.
1. 打开错误信息
cat /Users/along/.eclipse/762171948_macosx_cocoa_x86_64/configuration/1539580415773.log显示:
!SESSION 2018-10-15 13:13:35.692 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_181 java.vendor=Oracle Corporation BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_CN Framework arguments: -keyring /Users/along/.eclipse_keyring Command-line arguments: -os macosx -ws cocoa -arch x86_64 -keyring /Users/along/.eclipse_keyring !ENTRY org.eclipse.osgi 4 0 2018-10-15 13:13:36.824 !MESSAGE Application error !STACK 1 java.lang.IllegalStateException: The platform metadata area could not be written: /private/var/folders/6k/zthtjldx3p57hklv6rk636lr0000gn/T/AppTranslocation/A7533741-5F9A-499C-9ADA-6799A79C1AC3/d/mat.app/Contents/MacOS/workspace/.metadata. By default the platform writes its content under the current working directory when the platform is launched. Use the -data parameter to specify a different content area for the platform. at org.eclipse.core.internal.runtime.DataArea.assertLocationInitialized(DataArea.java:70) at org.eclipse.core.internal.runtime.DataArea.getStateLocation(DataArea.java:138) at org.eclipse.core.internal.preferences.InstancePreferences.getBaseLocation(InstancePreferences.java:44) at org.eclipse.core.internal.preferences.InstancePreferences.initializeChildren(InstancePreferences.java:209) at org.eclipse.core.internal.preferences.InstancePreferences.<init>(InstancePreferences.java:59) at org.eclipse.core.internal.preferences.InstancePreferences.internalCreate(InstancePreferences.java:220) at org.eclipse.core.internal.preferences.EclipsePreferences.create(EclipsePreferences.java:349) at org.eclipse.core.internal.preferences.EclipsePreferences.create(EclipsePreferences.java:337) at org.eclipse.core.internal.preferences.PreferencesService.createNode(PreferencesService.java:393) at org.eclipse.core.internal.preferences.RootPreferences.getChild(RootPreferences.java:60) at org.eclipse.core.internal.preferences.RootPreferences.getNode(RootPreferences.java:95) at org.eclipse.core.internal.preferences.RootPreferences.node(RootPreferences.java:84) at org.eclipse.core.internal.preferences.AbstractScope.getNode(AbstractScope.java:38) at org.eclipse.core.runtime.preferences.InstanceScope.getNode(InstanceScope.java:77) at org.eclipse.ui.preferences.ScopedPreferenceStore.getStorePreferences(ScopedPreferenceStore.java:225) at org.eclipse.ui.preferences.ScopedPreferenceStore.<init>(ScopedPreferenceStore.java:132) at org.eclipse.ui.plugin.AbstractUIPlugin.getPreferenceStore(AbstractUIPlugin.java:287) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:609) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:597) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148) at org.eclipse.mat.ui.rcp.Application.start(Application.java:26) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243) 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.eclipse.equinox.launcher.Main.invokeFramework(Main.java:656) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:592) at org.eclipse.equinox.launcher.Main.run(Main.java:1498)
重点是The platform metadata area could not be written: /private/var/folders/6k/zthtjldx3p57hklv6rk636lr0000gn/T/AppTranslocation/A7533741-5F9A-499C-9ADA-6799A79C1AC3/d/mat.app/Contents/MacOS/workspace/.metadata. By default the platform writes its content under the current working directory when the platform is launched. Use the -data parameter to specify a different content area for the platform.
需要使用 -data指定一个位置.
2. 指定data位置
在命令行执行 open, 显示帮助信息:
Usage: open [-e] [-t] [-f] [-W] [-R] [-n] [-g] [-h] [-s <partial SDK name>][-b <bundle identifier>] [-a <application>] [filenames] [--args arguments] Help: Open opens files from a shell. By default, opens each file using the default application for that file. If the file is in the form of a URL, the file will be opened as a URL. Options: -a Opens with the specified application. -b Opens with the specified application bundle identifier. -e Opens with TextEdit. -t Opens with default text editor. -f Reads input from standard input and opens with TextEdit. -F --fresh Launches the app fresh, that is, without restoring windows. Saved persistent state is lost, excluding Untitled documents. -R, --reveal Selects in the Finder instead of opening. -W, --wait-apps Blocks until the used applications are closed (even if they were already running). --args All remaining arguments are passed in argv to the application's main() function instead of opened. -n, --new Open a new instance of the application even if one is already running. -j, --hide Launches the app hidden. -g, --background Does not bring the application to the foreground. -h, --header Searches header file locations for headers matching the given filenames, and opens them. -s For -h, the SDK to use; if supplied, only SDKs whose names contain the argument value are searched. Otherwise the highest versioned SDK in each platform is used.
注意这里的–args 是可以传递参数的.
3. 最终执行命令
使用如下命令即可正常打开该mat.app.
open -a mat.app --args -data ~/workplace/heapdump/
