mac打开android sdk manager空白
问题相关代码，请勿粘贴截图
下载android-sdk包后，解压，解压后进入tools目录,执行./android打开的android sdk manager空白，一直加载中，只能强制退出
运行结果及报错内容
终端中报错如下：
java.lang.NullPointerException
at org.eclipse.swt.widgets.Control.internal_new_GC(Unknown Source)
at org.eclipse.swt.graphics.GC.<init>(Unknown Source)
at org.eclipse.swt.graphics.GC.<init>(Unknown Source)
at org.eclipse.swt.custom.CLabel.getTotalSize(Unknown Source)
at org.eclipse.swt.custom.CLabel.onPaint(Unknown Source)
at org.eclipse.swt.custom.CLabel$1.paintControl(Unknown Source)
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Control.drawWidget(Unknown Source)
at org.eclipse.swt.widgets.Canvas.drawWidget(Unknown Source)
at org.eclipse.swt.widgets.Widget.drawRect(Unknown Source)
at org.eclipse.swt.widgets.Canvas.drawRect(Unknown Source)
at org.eclipse.swt.widgets.Display.windowProc(Unknown Source)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
at org.eclipse.swt.widgets.Display.applicationNextEventMatchingMask(Unknown Source)
at org.eclipse.swt.widgets.Display.applicationProc(Unknown Source)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
at org.eclipse.swt.internal.cocoa.NSApplication.nextEventMatchingMask(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at com.android.sdkuilib.internal.repository.ui.SdkUpdaterWindowImpl2.open(SdkUpdaterWindowImpl2.java:148)
at com.android.sdkuilib.repository.SdkUpdaterWindow.open(SdkUpdaterWindow.java:111)
at com.android.sdkmanager.Main.showSdkManagerWindow(Main.java:413)
at com.android.sdkmanager.Main.doAction(Main.java:391)
at com.android.sdkmanager.Main.run(Main.java:151)
at com.android.sdkmanager.Main.main(Main.java:117)
