Because of the call to String.toLowerCase() without a locale in TableMetadata.addColumn(ResultSet), the name of a column can be incorrectly set when the default locale is Turkish.

Example:

• the original column name is "id",
• in addColumn(ResultSet), the name becomes ıd (note the first character is 'ı' (U+0131) instead of 'i' (U+0069) because of the String.toLowerCase() in line 154),
• as a result, the construction of the SessionFactory fails with a HibernateException:

  org.hibernate.HibernateException: Missing column: id in ELEMENT
  

Attached is a test case for the problem:

• test case: MissingColumnWithTurkishTest.java;
• build file: build.gradle.

Owing the fix to

if ( getColumnMetadata(column) == null ) {
	ColumnMetadata info = new ColumnMetadata(rs);
	columns.put( info.getName().toLowerCase(), info );
}

to:

if ( getColumnMetadata(column) == null ) {
	ColumnMetadata info = new ColumnMetadata(rs);
	columns.put( StringHelper.toLowerCase(info.getName()), info );
}