diff --git a/tool/playground/JavaLR.g4 b/tool/playground/JavaLR.g4
index d8344c50e..e27333a9e 100644
--- a/tool/playground/JavaLR.g4
+++ b/tool/playground/JavaLR.g4
@@ -852,7 +852,7 @@ WS  :  (' '|'\r'|'\t'|'\u000C'|'\n')+ {setChannel(HIDDEN);}
     ;
 
 COMMENT
-    :   '/*' .* '*/' {setChannel(HIDDEN);}
+    :   '/*' .*? '*/' {setChannel(HIDDEN);}
     ;
 
 LINE_COMMENT
diff --git a/tool/playground/TestJava.java b/tool/playground/TestJava.java
index f2d39a118..b4151d94b 100644
--- a/tool/playground/TestJava.java
+++ b/tool/playground/TestJava.java
@@ -51,7 +51,6 @@ class TestJava {
             System.out.println("Total time " + (stop - start) + "ms.");
 
             System.out.println("finished parsing OK");
-            System.out.println(LexerATNSimulator.ATN_failover+" lexer failovers");
             System.out.println(LexerATNSimulator.match_calls+" lexer match calls");
             System.out.println(ParserATNSimulator.ATN_failover+" parser failovers");
             System.out.println(ParserATNSimulator.predict_calls +" parser predict calls");
diff --git a/tool/playground/TestJavaLR.java b/tool/playground/TestJavaLR.java
index fe2d546e7..1964deb82 100644
--- a/tool/playground/TestJavaLR.java
+++ b/tool/playground/TestJavaLR.java
@@ -192,7 +192,6 @@ class TestJavaLR {
 		System.out.println("Total lexer+parser time " + time + "ms.");
 
 		System.out.println("finished parsing OK");
-		System.out.println(LexerATNSimulator.ATN_failover+" lexer failovers");
 		System.out.println(LexerATNSimulator.match_calls+" lexer match calls");
 		System.out.println(ParserATNSimulator.ATN_failover+" parser failovers");
 		System.out.println(ParserATNSimulator.predict_calls +" parser predict calls");
diff --git a/tool/playground/TestYang.java b/tool/playground/TestYang.java
index dbf4860e4..c216ccc5b 100644
--- a/tool/playground/TestYang.java
+++ b/tool/playground/TestYang.java
@@ -32,7 +32,6 @@ class TestYang {
 			System.out.println("Total time " + (stop - start) + "ms.");
 
 			System.out.println("finished parsing OK");
-			System.out.println(LexerATNSimulator.ATN_failover+" lexer failovers");
 			System.out.println(LexerATNSimulator.match_calls+" lexer match calls");
 			System.out.println(ParserATNSimulator.ATN_failover+" parser failovers");
 			System.out.println(ParserATNSimulator.predict_calls +" parser predict calls");