8005191: [parfait] #384 sun/font/layout/LookupProcessor.cpp Null pointer dereference

Reviewed-by: prr, vadim
Contributed-by: jia-hong.chen@oracle.com

src/share/native/sun/font/layout/LookupProcessor.cpp

@@ -125,6 +125,10 @@ le_uint32 LookupProcessor::applySingleLookup(le_uint16 lookupTableIndex, GlyphIt
     }
 
     const LookupTable *lookupTable = lookupListTable->getLookupTable(lookupTableIndex);
+    if (lookupTable == NULL) {
+        success = LE_INTERNAL_ERROR;
+        return 0;
+    }
     le_uint16 lookupFlags = SWAPW(lookupTable->lookupFlags);
     GlyphIterator tempIterator(*glyphIterator, lookupFlags);
     le_uint32 delta = applyLookupTable(lookupTable, &tempIterator, fontInstance, success);