## Technology Stack

- **Java**: 21+ (configured via parent POM)
- **OpenSearch**: Latest (provided scope)
- **Apache Lucene**: Query parsing and text analysis
- **ICU4J**: Unicode text processing and normalization
- **JUnit 4**: Testing framework
- **Maven**: Build and dependency management

## Quick Start

### Prerequisites

- Java 21 or higher

      if (breakingWhitespace().matches((char) c)) {
        assertTrue(Integer.toHexString(c), whitespace().matches((char) c));
      }
    }
  }

  // The next tests require ICU4J and have, at least for now, been sliced out
  // of the open-source view of the tests.

  @J2ktIncompatible
  @GwtIncompatible // Character.isISOControl
  public void testJavaIsoControl() {

Shinsuke Sugaya <******@****.***> 1763389701 +0900