Error importing pyserini.dsearch

[joaocp98662]

Hello,

In my local machine everything works fine, with my environment. But when I try to run it in my lab machines (I don't have superuser permissions in this machines), after setting up everything, I get this error:

File "dense_retrieval.py", line 10, in
from pyserini.dsearch import SimpleDenseSearcher, AutoQueryEncoder
File "/cfs/home/u121171/.local/lib/python3.6/site-packages/pyserini/dsearch/init.py", line 17, in
from pyserini.search.faiss import DenseSearchResult, PRFDenseSearchResult, QueryEncoder,
File "/cfs/home/u121171/.local/lib/python3.6/site-packages/pyserini/search/init.py", line 17, in
from .lucene import JQuery, JDisjunctionMaxQueryGenerator, get_topics,
File "/cfs/home/u121171/.local/lib/python3.6/site-packages/pyserini/search/lucene/init.py", line 17, in
from ._base import JQuery, JDisjunctionMaxQueryGenerator, get_topics,
File "/cfs/home/u121171/.local/lib/python3.6/site-packages/pyserini/search/lucene/_base.py", line 34, in
JQrels = autoclass('io.anserini.eval.Qrels')
File "/cfs/home/u121171/.local/lib/python3.6/site-packages/jnius/reflect.py", line 211, in autoclass
c = find_javaclass(clsname)
File "jnius/jnius_export_func.pxi", line 26, in jnius.find_javaclass
File "jnius/jnius_utils.pxi", line 91, in jnius.check_exception
jnius.JavaException: JVM exception occurred: io/anserini/eval/Qrels has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0 java.lang.UnsupportedClassVersionError

my java version:

java -version
openjdk version "11.0.11" 2021-04-20
OpenJDK Runtime Environment (build 11.0.11+9-suse-3.56.1-x8664)
OpenJDK 64-Bit Server VM (build 11.0.11+9-suse-3.56.1-x8664, mixed mode)

I know the problem is on my side, but can someone help me please?

Thank you all,

Regards

[lintool]

It's a JVM version issue...

52 = Java 8
53 = Java 9
54 = Java 10
55 = Java 11

You'll need to find some way to run the right JVM version on your lab machine... this depends on your lab policy, which isn't something we can really help with...

[zhenduow]

Have the same problem. How to make sure I run it with Java 11?

[Xnhyacinth]

I have run the right JVM version.

java -version:
openjdk version "11.0.21" 2023-10-17
OpenJDK Runtime Environment (build 11.0.21+9-post-Ubuntu-0ubuntu122.04)
OpenJDK 64-Bit Server VM (build 11.0.21+9-post-Ubuntu-0ubuntu122.04, mixed mode, sharing)

However, the error is changed:
jnius.JavaException: JVM exception occurred: io/anserini/analysis/DefaultEnglishAnalyzer has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 55.0 java.lang.UnsupportedClassVersionError.

How can I solve it.

[lintool]

Hi @Xnhyacinth - please see my response here:
#383 (comment)