Bug 8581 Switch J Search to StructuredContentProvider
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/search/JavaSearchPage.java
int i= 0;
		int size= fgPreviousSearchPatterns.size();
		while (match == null && i < size) {
			match= (SearchPatternData) fgPreviousSearchPatterns.get(i);
			i++;
			if (!pattern.equals(match.pattern))
				match= null;
		};
		if (match == null) {
			match= new SearchPatternData(
							getSearchFor(),
							getLimitTo(),
							pattern,
							fCaseSensitive.getSelection(),
							fJavaElement,
							getContainer().getSelectedScope(),
							getContainer().getSelectedWorkingSet());
			fgPreviousSearchPatterns.add(match);
		}
		else {
			match.searchFor= getSearchFor();
			match.limitTo= getLimitTo();
			match.isCaseSensitive= fCaseSensitive.getSelection();
			match.javaElement= fJavaElement;
			match.scope= getContainer().getSelectedScope();
			match.workingSet= getContainer().getSelectedWorkingSet();
		};
		return match;
	}
	/*