eZ Find's autocomplete functionality does not work, on both backend and frontend siteaccesses, with Kanji and Hiragana Japanese characters. However, is does work with katakana characters.

Steps to reproduce:

1. Configure CJKTokenizer in solr. Following SOLR's example (http://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_3_6/solr/example/solr/conf/schema.xml), I added the following block to ./ezpublish_legacy/extension/ezfind/java/solr/conf/schema.xml:

<fieldType name="text_cjk" class="solr.TextField" positionIncrementGap="100">
	<analyzer>
		<tokenizer class="solr.StandardTokenizerFactory"/>
		<!-- normalize width before bigram, as e.g. half-width dakuten combine  -->
		<filter class="solr.CJKWidthFilterFactory"/>
		<!-- for any non-CJK -->
		<filter class="solr.LowerCaseFilterFactory"/>
		<filter class="solr.CJKBigramFilterFactory"/>
	</analyzer>
</fieldType>

...just after:

<fieldtype name="geohash" class="solr.GeoHashField"/>

Please note that you must re-start SOLR for the changes to take effect. Re-indexing in not necessary, though.

2. Create Japanese content. For the sake of completeness, I created content in Kanji, Hiragana and Katakana:

Kanji: 漢字(かんじ) no auto-complete

Hiragana: ひらがな no auto-complete

Katakana: カタカナ auto-complete works