Jan Høydahl created SOLR-6643:
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Summary: Core load silently aborted if missing depenencies
Key: SOLR-6643
URL: https://issues.apache.org/jira/browse/SOLR-6643
Project: Solr
Issue Type: Bug
Components: Schema and Analysis
Affects Versions: 4.10.1
Reporter: Jan Høydahl
Priority: Minor
*How to reproduce*
# Start with standard collection1 config
# Add a field type to schema using the ICU contrib, no need for a field
{code:XML}
<fieldType name="text_icu" class="solr.TextField">
<analyzer><tokenizer class="solr.ICUTokenizerFactory"/></analyzer>
</fieldType>
{code}
# {{cd example}}
# {{mkdir solr/lib}}
# {{cp ../contrib/analysis-extras/lucene-libs/lucene-analyzers-icu-4.10.1.jar
solr/lib/}}
# {{bin/solr -f}}
# Core is not loaded, and no messages in log after this line
{code}
... INFO org.apache.solr.schema.IndexSchema – [collection1] Schema
name=example
{code}
Note that we did *not* add the dependency libs from {{analysis-extras/lib}}, so
we'd expect a {{ClassNotFoundException}}, but some way the initialization of
schema aborts silently. The ICUTokenizerFactory is instansiated by reflection
and I suspect that some exception is swallowed in
{{AbstractPluginLoader#create()}}
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