src/java.base/unix/classes/java/io/UnixFileSystem.java

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

*** 96,106 ****
          if (prevChar == '/') return normalize(pathname, n, n - 1);
          return pathname;
      }
  
      public int prefixLength(String pathname) {
!         if (pathname.length() == 0) return 0;
          return (pathname.charAt(0) == '/') ? 1 : 0;
      }
  
      public String resolve(String parent, String child) {
          if (child.isEmpty()) return parent;
--- 96,106 ----
          if (prevChar == '/') return normalize(pathname, n, n - 1);
          return pathname;
      }
  
      public int prefixLength(String pathname) {
!         if (pathname.isEmpty()) return 0;
          return (pathname.charAt(0) == '/') ? 1 : 0;
      }
  
      public String resolve(String parent, String child) {
          if (child.isEmpty()) return parent;
*** 247,257 ****
      public native int getBooleanAttributes0(File f);
  
      public int getBooleanAttributes(File f) {
          int rv = getBooleanAttributes0(f);
          String name = f.getName();
!         boolean hidden = (name.length() > 0) && (name.charAt(0) == '.');
          return rv | (hidden ? BA_HIDDEN : 0);
      }
  
      public native boolean checkAccess(File f, int access);
      public native long getLastModifiedTime(File f);
--- 247,257 ----
      public native int getBooleanAttributes0(File f);
  
      public int getBooleanAttributes(File f) {
          int rv = getBooleanAttributes0(f);
          String name = f.getName();
!         boolean hidden = !name.isEmpty() && name.charAt(0) == '.';
          return rv | (hidden ? BA_HIDDEN : 0);
      }
  
      public native boolean checkAccess(File f, int access);
      public native long getLastModifiedTime(File f);