--- a/src/java.base/share/classes/java/util/regex/Pattern.java Thu Dec 13 16:14:07 2018 +0100
+++ b/src/java.base/share/classes/java/util/regex/Pattern.java Thu Dec 13 15:31:05 2018 +0100
@@ -1390,7 +1390,7 @@
localTCNCount = 0;
// if length > 0, the Pattern is lazily compiled
- if (pattern.length() == 0) {
+ if (pattern.isEmpty()) {
root = new Start(lastAccept);
matchRoot = lastAccept;
compiled = true;
@@ -1423,7 +1423,7 @@
localCount = 0;
localTCNCount = 0;
- if (pattern.length() > 0) {
+ if (!pattern.isEmpty()) {
compile();
} else {
root = new Start(lastAccept);