[IVYDE-136] When migrating from ivyde alpha to ivyde beta eclipse is throwing NPE at startup

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0.beta1
• Fix Version/s: 2.0.0.final

Environment

Windows

• Assignee: Nicolas Lalevée
• Reporter: Daniel Becheanu
• Created: 02/Dec/08 17:39
• Updated: 10/Jun/09 15:06
• Resolved: 04/Dec/08 19:40

Description

When migrating from ivyde alpha to ivyde beta eclipse is throwing NPE at startup.

The problem seems to be in IvyDEPreferenceStoreHelper. This class tries to invoke IPreferenceStore.putValue with null newValue but the implementation from
org.eclipse.core.internal.preferences.EclipsePreferences does not accept nulls.

public void put(String key, String newValue)
{
if(key == null || newValue == null)
throw new NullPointerException();
String oldValue = internalPut(key, newValue);
if(!newValue.equals(oldValue))

{ makeDirty(); firePreferenceEvent(key, oldValue, newValue); }

}

Issue Links

• is duplicated by: IVYDE-184 NPE loading IvydeContainerPage when adding IvyDE managed dependecies to build path
• is duplicated by: IVYDE-147 Upgrading from 2.0.0 alpha to 2.0.0 beta causes preferences problems.