solr 4 error in alfresco 5.2

[faradey1791]

Hello, 
I used alfresco 4.2 and upgraded it to 5.2 with link Alfresco Community 4.0.d to 4.2.c upgrade procedure / HOW-TO – FOSS Office en 
And everything is ok, but in solr.log I have an error (in attachment solr.log).
When I get dataStatistic (databaseStatistic_orig.xml) I think it's OK.
I don't understand, why I have an error in solr.

[mehe]

maybe you could tuneup the ssl logging with 

java  -Djavax.net.debug=all ...

on the JVM startup of alfresco and Solr and look for the ssl related messages in the logs

Java Version is?  I think for 4.2 it should be Java7. Are you using Java6 - there could be a problem with ciphers...

Alfresco 5 runs with Java8....

[faradey1791 · Accepted solution]

It was my fault. Because I upgraded alfresco 4.0 to 5.2. But the wright way is 4.0 > 4.2 > 5.0 > 5.2. And now there are no errors in log files.

Thanx a lot!!!