src/java.base/share/classes/jdk/internal/jrtfs/JrtPath.java

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

*** 86,96 ****
          }
      }
  
      @Override
      public final JrtPath getFileName() {
!         if (path.length() == 0)
              return this;
          if (path.length() == 1 && path.charAt(0) == '/')
              return null;
          int off = path.lastIndexOf('/');
          if (off == -1)
--- 86,96 ----
          }
      }
  
      @Override
      public final JrtPath getFileName() {
!         if (path.isEmpty())
              return this;
          if (path.length() == 1 && path.charAt(0) == '/')
              return null;
          int off = path.lastIndexOf('/');
          if (off == -1)
*** 208,218 ****
      public final JrtPath relativize(Path other) {
          final JrtPath o = checkPath(other);
          if (o.equals(this)) {
              return new JrtPath(jrtfs, "", true);
          }
!         if (path.length() == 0) {
              return o;
          }
          if (jrtfs != o.jrtfs || isAbsolute() != o.isAbsolute()) {
              throw new IllegalArgumentException(
                  "Incorrect filesystem or path: " + other);
--- 208,218 ----
      public final JrtPath relativize(Path other) {
          final JrtPath o = checkPath(other);
          if (o.equals(this)) {
              return new JrtPath(jrtfs, "", true);
          }
!         if (path.isEmpty()) {
              return o;
          }
          if (jrtfs != o.jrtfs || isAbsolute() != o.isAbsolute()) {
              throw new IllegalArgumentException(
                  "Incorrect filesystem or path: " + other);
*** 260,279 ****
          return jrtfs;
      }
  
      @Override
      public final boolean isAbsolute() {
!         return path.length() > 0 && path.charAt(0) == '/';
      }
  
      @Override
      public final JrtPath resolve(Path other) {
          final JrtPath o = checkPath(other);
!         if (this.path.length() == 0 || o.isAbsolute()) {
              return o;
          }
!         if (o.path.length() == 0) {
              return this;
          }
          StringBuilder sb = new StringBuilder(path.length() + o.path.length() + 1);
          sb.append(path);
          if (path.charAt(path.length() - 1) != '/')
--- 260,279 ----
          return jrtfs;
      }
  
      @Override
      public final boolean isAbsolute() {
!         return !path.isEmpty() && path.charAt(0) == '/';
      }
  
      @Override
      public final JrtPath resolve(Path other) {
          final JrtPath o = checkPath(other);
!         if (this.path.isEmpty() || o.isAbsolute()) {
              return o;
          }
!         if (o.path.isEmpty()) {
              return this;
          }
          StringBuilder sb = new StringBuilder(path.length() + o.path.length() + 1);
          sb.append(path);
          if (path.charAt(path.length() - 1) != '/')
*** 299,309 ****
          if (isAbsolute() != o.isAbsolute() || !tp.startsWith(op)) {
              return false;
          }
          int off = op.length();
          if (off == 0) {
!             return tp.length() == 0;
          }
          // check match is on name boundary
          return tp.length() == off || tp.charAt(off) == '/' ||
                 off == 0 || op.charAt(off - 1) == '/';
      }
--- 299,309 ----
          if (isAbsolute() != o.isAbsolute() || !tp.startsWith(op)) {
              return false;
          }
          int off = op.length();
          if (off == 0) {
!             return tp.isEmpty();
          }
          // check match is on name boundary
          return tp.length() == off || tp.charAt(off) == '/' ||
                 off == 0 || op.charAt(off - 1) == '/';
      }