On startup of the plugin check for bundled binaries

[lordyavin]

Expected Behavior

If the Doxygen binary plugin/feature is installed and no Doxygen installation is configured the default should be to use the bundled binaries.

Actual Behavior

Installed eclox and doxygen binaries via update site and eclox crashed without any error message (UI) while creating a new Doxyfile with the wizard. Log entry:

!ENTRY org.gna.eclox.core 4 0 2019-02-14 20:12:35.446
!MESSAGE Exception caught. eclox.core.doxygen.InvokeException: java.io.IOException: Cannot run program "doxygen" (in directory "..."): CreateProcess error=2, Das System kann die angegebene Datei nicht finden
!STACK 0
eclox.core.doxygen.InvokeException: java.io.IOException: Cannot run program "doxygen" (in directory "..."): CreateProcess error=2, Das System kann die angegebene Datei nicht finden
	at eclox.core.doxygen.Doxygen.run(Doxygen.java:249)
	at eclox.core.doxygen.Doxygen.run_local(Doxygen.java:329)
	at eclox.core.doxygen.Doxygen.generate(Doxygen.java:318)
	at eclox.core.doxygen.Doxygen.generate(Doxygen.java:303)
	at eclox.ui.wizard.NewDoxyfileWizard.performFinish(NewDoxyfileWizard.java:76)
	at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:775)
	at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:414)
	at org.eclipse.jface.dialogs.Dialog.lambda$0(Dialog.java:622)
	at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:84)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:252)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4131)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1055)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3944)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3547)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:822)
	at org.eclipse.jface.window.Window.open(Window.java:798)
	at org.eclipse.ui.internal.handlers.WizardHandler$New.executeHandler(WizardHandler.java:272)
	at org.eclipse.ui.internal.handlers.WizardHandler.execute(WizardHandler.java:293)
	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:294)
	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:96)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:320)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:254)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:164)
	at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:156)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:497)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:490)
	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:213)
	at org.eclipse.ui.internal.handlers.LegacyHandlerService.executeCommand(LegacyHandlerService.java:403)
	at org.eclipse.ui.internal.actions.CommandAction.runWithEvent(CommandAction.java:154)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:568)
	at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:400)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4131)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1055)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3944)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3547)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:636)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:563)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:151)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:155)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:595)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1501)
Caused by: java.io.IOException: Cannot run program "doxygen" (in directory "..."): CreateProcess error=2, Das System kann die angegebene Datei nicht finden
	at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1128)
	at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1071)
	at eclox.core.doxygen.Doxygen.run(Doxygen.java:247)
	... 62 more
Caused by: java.io.IOException: CreateProcess error=2, Das System kann die angegebene Datei nicht finden
	at java.base/java.lang.ProcessImpl.create(Native Method)
	at java.base/java.lang.ProcessImpl.<init>(ProcessImpl.java:420)
	at java.base/java.lang.ProcessImpl.start(ProcessImpl.java:151)
	at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1107)
	... 64 more

Steps to Reproduce the Problem

{steps}

Your Environment

• Eclox Plugin version: 0.12.1.v20180118-1753
• Eclox Doxygen Plugin version: 1.8.13.v20180118-1753
• Eclipse Version: 2018-12 (4.10)
• Java Version: 11.0.2-ojdkbuild
• Operating System Version: Windows 7

[anb0s]

should be fixed with #231

[anb0s]

fixed, see testing build, please verify and give feedback, thanks!