下载地址

https://www.eclipse.org/mat/downloads.php

出错分析

下载Eclipse Memory Analyzer在mac上打开的时候出现以下异常：

!SESSION 2019-05-21 13:02:20.172 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.8.0_65
java.vendor=Oracle Corporation
BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=zh_CN
Framework arguments:  -keyring /Users/leidongdong02/.eclipse_keyring
Command-line arguments:  -os macosx -ws cocoa -arch x86_64 -keyring /Users/leidongdong02/.eclipse_keyring

!ENTRY org.eclipse.osgi 4 0 2019-05-21 13:02:26.355
!MESSAGE Application error
!STACK 1
java.lang.IllegalStateException: The platform metadata area could not be written: /private/var/folders/72/byjy11cs0dj_z3rjtxnj_nn00000gn/T/AppTranslocation/7620FEB8-2147-4058-9E04-D7EC7AC53525/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:497)
	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)

原因

/private/var/folders/k4/knjt7v5x59l25z_tqmvg094r0000gn/T/AppTranslocation/3CBB3175-DD9A-4A3A-B93F-898BA4445384/d/mat.app/Contents/MacOS/workspace/.metadata是只读文件

解决方案

mat.app/Contents/MacOS/MemoryAnalyzer -data ~/bin/mat_data/