src/java.base/share/classes/jdk/internal/org/objectweb/asm/util/CheckSignatureAdapter.java

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

*** 363,373 ****
              signatureVisitor.visitEnd();
          }
      }
  
      private void checkClassName(final String name, final String message) {
!         if (name == null || name.length() == 0) {
              throw new IllegalArgumentException(INVALID + message + " (must not be null or empty)");
          }
          for (int i = 0; i < name.length(); ++i) {
              if (".;[<>:".indexOf(name.charAt(i)) != -1) {
                  throw new IllegalArgumentException(
--- 363,373 ----
              signatureVisitor.visitEnd();
          }
      }
  
      private void checkClassName(final String name, final String message) {
!         if (name == null || name.isEmpty()) {
              throw new IllegalArgumentException(INVALID + message + " (must not be null or empty)");
          }
          for (int i = 0; i < name.length(); ++i) {
              if (".;[<>:".indexOf(name.charAt(i)) != -1) {
                  throw new IllegalArgumentException(
*** 375,385 ****
              }
          }
      }
  
      private void checkIdentifier(final String name, final String message) {
!         if (name == null || name.length() == 0) {
              throw new IllegalArgumentException(INVALID + message + " (must not be null or empty)");
          }
          for (int i = 0; i < name.length(); ++i) {
              if (".;[/<>:".indexOf(name.charAt(i)) != -1) {
                  throw new IllegalArgumentException(
--- 375,385 ----
              }
          }
      }
  
      private void checkIdentifier(final String name, final String message) {
!         if (name == null || name.isEmpty()) {
              throw new IllegalArgumentException(INVALID + message + " (must not be null or empty)");
          }
          for (int i = 0; i < name.length(); ++i) {
              if (".;[/<>:".indexOf(name.charAt(i)) != -1) {
                  throw new IllegalArgumentException(