diff --git a/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/TraceJSON.java b/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/TraceJSON.java
index b0664f9..2409545 100644
--- a/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/TraceJSON.java
+++ b/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/trace/TraceJSON.java
@@ -744,6 +744,7 @@
 				do {
 					stack.pop();
 					getInstance().thread.terminateMethod();
+					if (stack.isEmpty()) break;
 					line2 = stack.peek();
 				} while (!stack.isEmpty() && !line2.endsWith(shortSignature));
 				if (!stack.isEmpty()) stack.pop();
@@ -782,6 +783,7 @@
 				do {
 					stack.pop();
 					getInstance().thread.terminateMethod();
+					if (stack.isEmpty()) break; // ���̈ꕶ�����ɒlj�(MethodExit�̕������l)
 					line2 = stack.peek();
 				} while (!stack.isEmpty() && !line2.endsWith(shortSignature));
 				if (!stack.isEmpty()) stack.pop();