code: protected boolean isTabScrollable(String tabLabel) {
  		JPanel tabPanel = this.tabNameMap.get(tabLabel);
  		if (tabPanel == null) {
  			return false;
  		}
  		return isTabScrollable(tabPanel);
  	}
docs: Tells whether or not the tab with the given label is scrollable.
  <p>
  <strong>Note:</strong> The scrollable state returned by this method only applies to tabs that were set to be (or not)
  scrollable through the method {@link #setTabScrollable(String, boolean)}, not to "panels" added directly to a tab with
  {@link #setCustomTabPanel(int, JComponent)}.
  
  @param tabLabel the label of the tab to check.
  @return {@code true} if the tab is scrollable, {@code false} otherwise.
  @since 2.7.0