code: @Deprecated
      public long[] internalGetCEs(CharSequence str) {
          CollationBuffer buffer = null;
          try {
              buffer = getCollationBuffer();
              boolean numeric = settings.readOnly().isNumeric();
              CollationIterator iter;
              if(settings.readOnly().dontCheckFCD()) {
                  buffer.leftUTF16CollIter.setText(numeric, str, 0);
                  iter = buffer.leftUTF16CollIter;
              } else {
                  buffer.leftFCDUTF16Iter.setText(numeric, str, 0);
                  iter = buffer.leftFCDUTF16Iter;
              }
              int length = iter.fetchCEs() - 1;
              assert length >= 0 && iter.getCE(length) == Collation.NO_CE;
              long[] ces = new long[length];
              System.arraycopy(iter.getCEs(), 0, ces, 0, length);
              return ces;
          } finally {
              releaseCollationBuffer(buffer);
          }
      }
docs: Returns the CEs for the string.
  @param str the string
  @deprecated This API is ICU internal only.
  @hide original deprecated declaration
  @hide draft / provisional / internal are hidden on Android