src/java.base/share/classes/jdk/internal/module/ModulePath.java

rev 52979 : 8215281: Use String.isEmpty() when applicable in java.base
Reviewed-by: TBD

@@ -544,11 +544,11 @@
             try (InputStream in = jf.getInputStream(entry)) {
                 BufferedReader reader
                     = new BufferedReader(new InputStreamReader(in, "UTF-8"));
                 String cn;
                 while ((cn = nextLine(reader)) != null) {
-                    if (cn.length() > 0) {
+                    if (!cn.isEmpty()) {
                         String pn = packageName(cn);
                         if (!packages.contains(pn)) {
                             String msg = "Provider class " + cn + " not in module";
                             throw new InvalidModuleDescriptorException(msg);
                         }

@@ -597,11 +597,11 @@
 
         // collapse repeating dots
         mn = Patterns.REPEATING_DOTS.matcher(mn).replaceAll(".");
 
         // drop leading dots
-        if (mn.length() > 0 && mn.charAt(0) == '.')
+        if (!mn.isEmpty() && mn.charAt(0) == '.')
             mn = Patterns.LEADING_DOTS.matcher(mn).replaceAll("");
 
         // drop trailing dots
         int len = mn.length();
         if (len > 0 && mn.charAt(len-1) == '.')