Hoss Man created SOLR-13471:
-------------------------------
Summary: javabin codec can marshal data that it can't unmarshal
(ClassCastException: class java.lang.Boolean cannot be cast to class
java.lang.String)
Key: SOLR-13471
URL: https://issues.apache.org/jira/browse/SOLR-13471
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Hoss Man
I haven't dug into this, or been able to reproduce it (let alone get any
additional logging/debugging/breakpoint info) but in a few very sporadic, very
rare, instances of running TestReplicationHandlerDiskOverFlow, I triggered
ClassCastException's in JavaBinCodec unmarshal code -- indicating that there is
some disconnect in expectations between the marshal & unmarshal code paths...
{noformat}
[junit4] 2> 13342 ERROR (Thread-19) [ ]
o.a.s.h.TestReplicationHandlerDiskOverFlow Query Thread Failure
[junit4] 2> =>
org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error
from server at http://127.0.0.1:54505/solr/collection1: class java.lang.Boolean
cannot be cast to class java.lang.String (java.lang.Boolean and
java.lang.String are in module java.base of loader 'bootstrap')
[junit4] 2> at
org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:622)
[junit4] 2>
org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error
from server at http://127.0.0.1:54505/solr/collection1: class java.lang.Boolean
cannot be cast to class java.lang.String (java.lang.Boolean and
java.lang.String are in module java.base of loader 'bootstrap')
[junit4] 2> at
org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:622)
~[java/:?]
[junit4] 2> at
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:255)
~[java/:?]
[junit4] 2> at
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:244)
~[java/:?]
[junit4] 2> at
org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:207)
~[java/:?]
[junit4] 2> at
org.apache.solr.client.solrj.SolrClient.query(SolrClient.java:987) ~[java/:?]
[junit4] 2> at
org.apache.solr.client.solrj.SolrClient.query(SolrClient.java:1002) ~[java/:?]
[junit4] 2> at
org.apache.solr.handler.TestReplicationHandlerDiskOverFlow.lambda$testDiskOverFlow$1(TestReplicationHandlerDiskOverFlow.java:154)
~[test/:?]
[junit4] 2> at java.lang.Thread.run(Thread.java:834) [?:?]
[junit4] 2> Caused by: java.lang.ClassCastException: class
java.lang.Boolean cannot be cast to class java.lang.String (java.lang.Boolean
and java.lang.String are in module java.base of loader 'bootstrap')
[junit4] 2> at
org.apache.solr.common.util.JavaBinCodec.readOrderedMap(JavaBinCodec.java:223)
~[java/:?]
[junit4] 2> at
org.apache.solr.common.util.JavaBinCodec.readObject(JavaBinCodec.java:298)
~[java/:?]
[junit4] 2> at
org.apache.solr.common.util.JavaBinCodec.readVal(JavaBinCodec.java:280)
~[java/:?]
[junit4] 2> at
org.apache.solr.common.util.JavaBinCodec.unmarshal(JavaBinCodec.java:193)
~[java/:?]
[junit4] 2> at
org.apache.solr.client.solrj.impl.BinaryResponseParser.processResponse(BinaryResponseParser.java:50)
~[java/:?]
[junit4] 2> at
org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:620)
~[java/:?]
[junit4] 2> ... 7 more
{noformat}
It's possible that something about the test code (or code being tested) is
doing something it should not be doing, and adding something "unexpeted" to the
response object -- but either the unmarshal code needs to be _as forgiving_ as
marshal code, or the marshal code should fail fast -- not produce a binary
stream that the unmarshal code can't parse.
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