dovecot - Nov 2014 - error using fts/tika

Hi,

I played around a bit and tried to get tika to run with dovecot. In the end I
was at least a bit successful.
However, when I tried to index my inbox with "doveadm index -A
'*'"

I get:
doveadm(infoomatic): Error: fts_tika: PUT http://localhost:8081/tika failed: 500
Server Error
doveadm(infoomatic): Warning: I/O leak: 0x7f4f697bb170 (line 127, fd 24)
doveadm(infoomatic): Panic: file ioloop-iolist.c: line 22: unreached
doveadm(infoomatic): Error: Raw backtrace:
/usr/lib/dovecot/libdovecot.so.0(+0x67f30) [0x7f4f697e8f30] ->
/usr/lib/dovecot/libdovecot.so.0(default_fatal_handler+0x2a) [0x7f4f697e8f9a]
-> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f4f6979c515] ->
/usr/lib/dovecot/libdovecot.so.0(+0x79b0d) [0x7f4f697fab0d] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_handle_add+0x3b) [0x7f4f697fb2ab] ->
/usr/lib/dovecot/libdovecot.so.0(+0x78cf1) [0x7f4f697f9cf1] ->
/usr/lib/dovecot/libdovecot.so.0(io_loop_move_io+0x3e) [0x7f4f697fa93e] ->
/usr/lib/dovecot/libdovecot.so.0(connection_switch_ioloop+0x14) [0x7f4f697e6df4]
-> /usr/lib/dovecot/libdovecot.so.0(http_client_switch_ioloop+0x28)
[0x7f4f697bf8e8] -> /usr/lib/dovecot/libdovecot.so.0(+0x36a86)
[0x7f4f697b7a86] ->
/usr/lib/dovecot/modules/lib21_fts_solr_plugin.so(solr_connection_post_more+0x29)
[0x7f4f68d9f069] ->
/usr/lib/dovecot/modules/lib21_fts_solr_plugin.so(+0x3547) [0x7f4f68d9b547]
-> /usr/lib/dovecot/modules/lib20_fts_plugin.so(fts_build_mail+0x35c)
[0x7f4f68faaffc] -> /usr/lib/dovecot/modules/lib20_fts_plugin.so(+0xd3ee)
[0x7f4f68fb03ee] ->
/usr/lib/dovecot/libdovecot-storage.so.0(mail_precache+0x19) [0x7f4f69ac3c39]
-> doveadm() [0x419501] -> doveadm() [0x4153c3] ->
doveadm(doveadm_mail_try_run+0x48c) [0x4162ac] -> doveadm(main+0x3d8)
[0x412588] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)
[0x7f4f693dcec5] -> doveadm() [0x4127a4]
Aborted (core dumped)

The last messages of the tika-server:
Nov 04, 2014 10:18:17 PM org.apache.tika.server.TikaResource logRequest
INFO: tika (video/x-ms-wmv)
Nov 04, 2014 10:18:17 PM org.apache.tika.server.TikaResource$3 write
WARNING: tika: Text extraction failed
org.apache.tika.exception.TikaException: Unexpected RuntimeException from
org.apache.tika.server.TikaResource$1 at 44742f73
Nov 04, 2014 10:18:17 PM org.apache.cxf.jaxrs.utils.JAXRSUtils
logMessageHandlerProblem
SEVERE: Problem with writing the data, class
org.apache.tika.server.TikaResource$3, ContentType: text/plain
Nov 04, 2014 10:18:17 PM org.apache.cxf.jaxrs.impl.WebApplicationExceptionMapper
toResponse
WARNING: javax.ws.rs.WebApplicationException: HTTP 415 Unsupported Media Type

dovecot -n:
# 2.2.15: /etc/dovecot/dovecot.conf
# OS: Linux 3.13.0-39-generic x86_64 Ubuntu 14.04.1 LTS ext4
auth_username_format = %n
disable_plaintext_auth = no
mail_gid = vmail
mail_home = /var/lib/vmail/home/%u
mail_location = mdbox:/var/lib/vmail/mail/%u
mail_plugins = fts fts_solr
mail_uid = vmail
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character
vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy
include variables body enotify environment mailbox date ihave duplicate
imapflags
mdbox_rotate_size = 32 M
namespace inbox {
  inbox = yes
  location = 
  mailbox Drafts {
    special_use = \Drafts
  }
  mailbox Junk {
    special_use = \Junk
  }
  mailbox Sent {
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Trash {
    special_use = \Trash
  }
  prefix = 
}
passdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
plugin {
  fts = solr
  fts_autoindex = yes
  fts_solr = url=http://localhost:8080/solr/ break-imap-search
  fts_tika = http://localhost:8081/tika
  sieve = ~/.dovecot.sieve
  sieve_dir = ~/sieve
  sieve_extensions = +imapflags
}
protocols = " imap sieve"
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  unix_listener auth-userdb {
    group = vmail
    user = vmail
  }
}
service managesieve-login {
  inet_listener sieve_deprecated {
    port = 2000
  }
}
ssl_cert = </etc/dovecot/dovecot.pem
ssl_key = </etc/dovecot/private/dovecot.pem
userdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
protocol lda {
  mail_plugins = fts fts_solr sieve
}

Has anyone hints? Or do the devs want some more information for debugging?

best regards,

infoomatic