Use ImageDescriptorRegistry

Change-Id: Ie2ea4966b98d1e95a71b8d8a651e3affa9f57778
diff --git a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/QuickAssistProcessor.java b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/QuickAssistProcessor.java
index a2e93ec..a371d71 100644
--- a/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/QuickAssistProcessor.java
+++ b/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/QuickAssistProcessor.java
@@ -4225,7 +4225,7 @@
 			String unitName= context.getCompilationUnit().getElementName();
 			if (unitName.equals(idName)) {
 				if (resultingCollections != null) {
-					Image image= JavaPluginImages.DESC_OBJS_TEST_CASE.createImage();
+					Image image= JavaPlugin.getImageDescriptorRegistry().get(JavaPluginImages.DESC_OBJS_TEST_CASE);
 					String label= Messages.format(CorrectionMessages.QuickAssistProcessor_create_new_junit_test_case, unitName);
 					Change change= new NullChange(CorrectionMessages.QuickAssistProcessor_create_new_junit_test_case_desc);
 					NewJUnitTestCaseProposal proposal= new NewJUnitTestCaseProposal(label, change, IProposalRelevance.CREATE_JUNIT_TEST_CASE, image, context.getASTRoot());