Description Lars Vogel 2012-01-26 16:05:08 EST

If I define a part without label and set it to dirty I get a StringIndexOutOfBoundsException in StackRenderer.

Example:

package com.exmaple.e4.playground3.parts;

import javax.annotation.PostConstruct;
import javax.inject.Inject;

import org.eclipse.e4.ui.di.Persist;
import org.eclipse.e4.ui.model.application.ui.MDirtyable;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;

public class MySavePart {

	@Inject
	MDirtyable dirty;

	@PostConstruct
	public void createUi(Composite parent) {
		Button button = new Button(parent, SWT.PUSH);
		button.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				dirty.setDirty(true);
			}
		});
	}

	@Persist
	public void save() {
		System.out.println("Saving data");
		// Save the data
		// ...
		// Now set the dirty flag to false
		dirty.setDirty(false);
	}

}

Stack:

java.lang.StringIndexOutOfBoundsException: String index out of range: 0
	at java.lang.String.charAt(String.java:694)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.updateTab(StackRenderer.java:343)
	at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer$2.handleEvent(StackRenderer.java:305)