Bug 49353 Javadoc preference does not indicate bad exe until field is edited. [javadoc]
I upgarded from Sun Java 1.4.2_02 to 1.4.2_03. When I open the Javadoc preference page, the entry fields shows "C:\Java\sun\1.4.2_02\bin\javadoc.exe", which no longer exists but the error icon and message is NOT displayed at the top of the pane. If I edit the field but leave the entry still bogus, THEN the error icon and message appear. I think the error should appear as soon as the pane is displayed. Version 3.0.m6.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javadocexport/JavadocTreeWizardPage.java
fCustomButton.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				doValidation(CUSTOMSTATUS);
			}
		});
		fStandardButton.addSelectionListener(new EnableSelectionAdapter(new Control[] { fDestinationLabel, fDestinationText, fDestinationBrowserButton }, new Control[] { fDocletLabel, fDocletText, fDocletTypeLabel, fDocletTypeText }));
		fStandardButton.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				doValidation(STANDARDSTATUS);
			}
		});
		fDestinationBrowserButton.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent event) {
										String text= handleFolderBrowseButtonPressed(fDestinationText.getText(), fDestinationText.getShell(), JavadocExportMessages.getString("JavadocTreeWizardPage.destinationbrowsedialog.title"), 
						    		JavadocExportMessages.getString("JavadocTreeWizardPage.destinationbrowsedialog.label")); 
				fDestinationText.setText(text);
			}
		});
		setOptionSetSettings();
	}
	public boolean getCustom() {
		return fCustomButton.getSelection();
	}
	private void setOptionSetSettings() {
		if (!fStore.isFromStandard()) {
			fCustomButton.setSelection(true);
			fDocletText.setText(fStore.getDocletPath());
			fDocletTypeText.setText(fStore.getDocletName());
			fDestinationText.setText(fStore.getDestination());
			fDestinationText.setEnabled(false);