xia0c created LUCENE-9011:
-----------------------------
Summary: Updating breaks backward compatibility by throwing
IndexFormatTooOldException in some cases
Key: LUCENE-9011
URL: https://issues.apache.org/jira/browse/LUCENE-9011
Project: Lucene - Core
Issue Type: Bug
Components: core/FSTs
Affects Versions: 7.7.1
Reporter: xia0c
When I try to update Lucene from 7.7.1 to the latest version 8.2.0. The
following code:
{code:java}
@Test
public void test() throws FileSystemException{
String fstFileName = "fst/slovaklemma_ascii.fst";
File fstFile = new File(fstFileName);
FST<CharsRef> fst = FST.read(fstFile.toPath(),
CharSequenceOutputs.getSingleton());
}
{code}
Throws an IndexFormatTooOldException error:
{code:java}
org.apache.lucene.index.IndexFormatTooOldException: Format version is not
supported (resource org.apache.lucene.store.InputStreamDataInput@69d9c55): 4
(needs to be between 6 and 6). This version of Lucene only supports indexes
created with release 6.0 and later.
at
org.apache.lucene.codecs.CodecUtil.checkHeaderNoMagic(CodecUtil.java:213)
at org.apache.lucene.codecs.CodecUtil.checkHeader(CodecUtil.java:198)
at org.apache.lucene.util.fst.FST.<init>(FST.java:275)
at org.apache.lucene.util.fst.FST.<init>(FST.java:263)
at org.apache.lucene.util.fst.FST.read(FST.java:487)
{code}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org
For additional commands, e-mail: issues-h...@lucene.apache.org
