public void close() {
		if (statement != null) {
			try {
				statement.close();
			}
			catch (SQLException e) {
				// ignore
			}
			statement = null;
		}
	}
Close the currently cached {@link Statement}.  This method may be invoked
from any thread but should be properly coordinated with its use in the statement
owner thread.
Ghidra/Features/BSim/src/main/java/ghidra/features/bsim/query/client/tables/CachedStatement.java