Fix for Bug 517012 - String.chars() seems to be missing from JavaSE-1.8

Change-Id: Ief9167c8ae4917c90fe211480c22dfc9a0742460
diff --git a/apitools/org.eclipse.pde.api.tools/src/org/eclipse/pde/api/tools/internal/builder/ReferenceExtractor.java b/apitools/org.eclipse.pde.api.tools/src/org/eclipse/pde/api/tools/internal/builder/ReferenceExtractor.java
index e3627be..48c3e0c 100644
--- a/apitools/org.eclipse.pde.api.tools/src/org/eclipse/pde/api/tools/internal/builder/ReferenceExtractor.java
+++ b/apitools/org.eclipse.pde.api.tools/src/org/eclipse/pde/api/tools/internal/builder/ReferenceExtractor.java
@@ -1469,9 +1469,6 @@
 	 * @throws CoreException
 	 */
 	static IApiType getDefaultDefined(IApiType type, String name, String signature, boolean isOverride) throws CoreException {
-		if (type != null && type.getName().startsWith("java.")) { //$NON-NLS-1$
-			return null;
-		}
 		if (type != null) {
 			if (!isOverride) {
 				IApiMethod method = type.getMethod(name, signature);