Bug 10403 Project creation should confirm the bin directory can be scrubbed
When a user creates a new project for an existing directory structure, we should confirm that the output directory can be deleted then rebuilt. Some users are creating projects & pointing the output folder at a bin directory which contains more than just .class files which can be rebuilt from the available .java files.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/BuildPathsBlock.java
fProjectsPage= null;
		fCurrPage= null;
				
		BuildPathAdapter adapter= new BuildPathAdapter();			
	
		String[] buttonLabels= new String[] {
			 NewWizardMessages.getString("BuildPathsBlock.classpath.up.button"), 
			 NewWizardMessages.getString("BuildPathsBlock.classpath.down.button"), 
			 null,
			 NewWizardMessages.getString("BuildPathsBlock.classpath.checkall.button"), 
			 NewWizardMessages.getString("BuildPathsBlock.classpath.uncheckall.button") 
		
		};
		
		fClassPathList= new CheckedListDialogField(null, buttonLabels, new CPListLabelProvider());
		fClassPathList.setDialogFieldListener(adapter);
		fClassPathList.setLabelText(NewWizardMessages.getString("BuildPathsBlock.classpath.label")); 
		fClassPathList.setUpButtonIndex(0);
		fClassPathList.setDownButtonIndex(1);
		fClassPathList.setCheckAllButtonIndex(3);
		fClassPathList.setUncheckAllButtonIndex(4);		
			
		fBuildPathDialogField= new StringButtonDialogField(adapter);
		fBuildPathDialogField.setButtonLabel(NewWizardMessages.getString("BuildPathsBlock.buildpath.button")); 
		fBuildPathDialogField.setDialogFieldListener(adapter);
		fBuildPathDialogField.setLabelText(NewWizardMessages.getString("BuildPathsBlock.buildpath.label")); 
		fBuildPathStatus= new StatusInfo();
		fClassPathStatus= new StatusInfo();
		
		fCurrJProject= null;