Could not initialize class org.eclipse.jdt.core.JavaConventions
<p>I'm getting the message written in the title when I start eclipse. Besides I keep getting the message 'Building workspace has encountered a problem'.</p>

<p>Recently I updated Java from 7 to 8, so this may be a problem source but I'm not sure. I also installed Spring using the 'eclipse marketplace'.</p>

<p>First time I got this problem I updated eclipse Mars.1 to Mars.2 and got rid of this error message...but only for a few hours. After rebooting my PC I got the same error messages again and here I am now.</p>

<p>Is there any other way than reinstalling eclipse? All these plugins like Spring IDE take long time to install so I want to avoid reinstalling somehow. </p>

<p>Thanks in advance</p>