--- old/src/share/vm/runtime/os.cpp	2015-11-19 15:35:28.714128515 +0100
+++ new/src/share/vm/runtime/os.cpp	2015-11-19 15:35:28.598128519 +0100
@@ -262,7 +262,7 @@
         VMThread::execute(&op1);
         Universe::print_heap_at_SIGBREAK();
         if (PrintClassHistogram) {
-          VM_GC_HeapInspection op1(gclog_or_tty, true /* force full GC before heap inspection */);
+          VM_GC_HeapInspection op1(tty, true /* force full GC before heap inspection */);
           VMThread::execute(&op1);
         }
         if (JvmtiExport::should_post_data_dump()) {