Comments (2)
dparis
commented on July 25, 2024
New data point: I created a new empty lein app project and added [amazonica "0.1.22"] as the only project dependency. I then nuked my .m2 directory and ran lein deps on my real project. After all of the dependencies had been resolved, I then ran lein deps on the new empty project and sure enough it grabbed a different version of org.apache.httpclient and org.apache.httpcore.
Here are the org.apache libs pulled in by my app:
Retrieving org/apache/commons/commons-parent/5/commons-parent-5.pom from central
Retrieving org/apache/apache/4/apache-4.pom from central
Retrieving org/apache/httpcomponents/httpclient/4.1/httpclient-4.1.pom from central
Retrieving org/apache/httpcomponents/httpcomponents-client/4.1/httpcomponents-client-4.1.pom from central
Retrieving org/apache/httpcomponents/project/4.1.1/project-4.1.1.pom from central
Retrieving org/apache/httpcomponents/httpcore/4.1/httpcore-4.1.pom from central
Retrieving org/apache/httpcomponents/httpcomponents-core/4.1/httpcomponents-core-4.1.pom from central
Retrieving org/apache/commons/commons-parent/11/commons-parent-11.pom from central
Retrieving org/apache/httpcomponents/httpcore/4.1/httpcore-4.1.jar from central
Retrieving org/apache/httpcomponents/httpclient/4.1/httpclient-4.1.jar from central
Retrieving org/apache/httpcomponents/httpclient/4.2/httpclient-4.2.pom from central
Retrieving org/apache/httpcomponents/httpcomponents-client/4.2/httpcomponents-client-4.2.pom from central
Retrieving org/apache/httpcomponents/project/5/project-5.pom from central
Retrieving org/apache/httpcomponents/httpcore/4.2/httpcore-4.2.pom from central
Retrieving org/apache/httpcomponents/httpcomponents-core/4.2/httpcomponents-core-4.2.pom from central
Retrieving org/apache/httpcomponents/project/6/project-6.pom from central
Retrieving org/apache/commons/commons-parent/22/commons-parent-22.pom from central
Retrieving org/apache/apache/9/apache-9.pom from central
Retrieving org/apache/lucene/lucene-core/3.1.0/lucene-core-3.1.0.pom from central
Retrieving org/apache/lucene/lucene-parent/3.1.0/lucene-parent-3.1.0.pom from central
Retrieving org/apache/lucene/lucene-solr-grandparent/3.1.0/lucene-solr-grandparent-3.1.0.pom from central
Retrieving org/apache/apache/8/apache-8.pom from central
Retrieving org/apache/lucene/lucene-analyzers/3.1.0/lucene-analyzers-3.1.0.pom from central
Retrieving org/apache/commons/commons-parent/20/commons-parent-20.pom from central
Retrieving org/apache/httpcomponents/httpclient/4.2.1/httpclient-4.2.1.pom from central
Retrieving org/apache/httpcomponents/httpcomponents-client/4.2.1/httpcomponents-client-4.2.1.pom from central
Retrieving org/apache/httpcomponents/httpcore/4.2.1/httpcore-4.2.1.pom from central
Retrieving org/apache/httpcomponents/httpcomponents-core/4.2.1/httpcomponents-core-4.2.1.pom from central
Retrieving org/apache/commons/commons-exec/1.1/commons-exec-1.1.pom from central
Retrieving org/apache/commons/commons-parent/17/commons-parent-17.pom from central
Retrieving org/apache/apache/7/apache-7.pom from central
Retrieving org/apache/apache/3/apache-3.pom from central
Retrieving org/apache/commons/commons-parent/9/commons-parent-9.pom from central
Retrieving org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.pom from central
Retrieving org/apache/httpcomponents/httpclient/4.2.2/httpclient-4.2.2.pom from central
Retrieving org/apache/httpcomponents/httpcomponents-client/4.2.2/httpcomponents-client-4.2.2.pom from central
Retrieving org/apache/httpcomponents/httpcore/4.2.2/httpcore-4.2.2.pom from central
Retrieving org/apache/httpcomponents/httpcomponents-core/4.2.2/httpcomponents-core-4.2.2.pom from central
Retrieving org/apache/httpcomponents/httpmime/4.2.2/httpmime-4.2.2.pom from central
Retrieving org/apache/commons/commons-parent/26/commons-parent-26.pom from central
Retrieving org/apache/commons/commons-parent/25/commons-parent-25.pom from central
Retrieving org/apache/commons/commons-parent/24/commons-parent-24.pom from central
Retrieving org/apache/xmlgraphics/batik-dom/1.7/batik-dom-1.7.pom from central
Retrieving org/apache/xmlgraphics/batik-css/1.7/batik-css-1.7.pom from central
Retrieving org/apache/xmlgraphics/batik-ext/1.7/batik-ext-1.7.pom from central
Retrieving org/apache/xmlgraphics/batik-util/1.7/batik-util-1.7.pom from central
Retrieving org/apache/xmlgraphics/batik-xml/1.7/batik-xml-1.7.pom from central
Retrieving org/apache/xmlgraphics/batik-svggen/1.7/batik-svggen-1.7.pom from central
Retrieving org/apache/xmlgraphics/batik-awt-util/1.7/batik-awt-util-1.7.pom from central
Retrieving org/apache/poi/poi-ooxml/3.9/poi-ooxml-3.9.pom from central
Retrieving org/apache/poi/poi/3.9/poi-3.9.pom from central
Retrieving org/apache/poi/poi-ooxml-schemas/3.9/poi-ooxml-schemas-3.9.pom from central
Retrieving org/apache/xmlbeans/xmlbeans/2.3.0/xmlbeans-2.3.0.pom from central
Retrieving org/apache/abdera/abdera-i18n/1.1.1/abdera-i18n-1.1.1.pom from central
Retrieving org/apache/abdera/abdera/1.1.1/abdera-1.1.1.pom from central
Retrieving org/apache/geronimo/specs/geronimo-activation_1.0.2_spec/1.1/geronimo-activation_1.0.2_spec-1.1.pom from central
Retrieving org/apache/geronimo/specs/specs/1.1/specs-1.1.pom from central
Retrieving org/apache/apache/1/apache-1.pom from central
Retrieving org/apache/lucene/lucene-core/3.1.0/lucene-core-3.1.0.jar from central
Retrieving org/apache/lucene/lucene-analyzers/3.1.0/lucene-analyzers-3.1.0.jar from central
Retrieving org/apache/httpcomponents/httpmime/4.2.2/httpmime-4.2.2.jar from central
Retrieving org/apache/xmlgraphics/batik-dom/1.7/batik-dom-1.7.jar from central
Retrieving org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar from central
Retrieving org/apache/xmlgraphics/batik-css/1.7/batik-css-1.7.jar from central
Retrieving org/apache/xmlgraphics/batik-ext/1.7/batik-ext-1.7.jar from central
Retrieving org/apache/xmlgraphics/batik-svggen/1.7/batik-svggen-1.7.jar from central
Retrieving org/apache/xmlgraphics/batik-awt-util/1.7/batik-awt-util-1.7.jar from central
Retrieving org/apache/xmlgraphics/batik-util/1.7/batik-util-1.7.jar from central
Retrieving org/apache/xmlgraphics/batik-xml/1.7/batik-xml-1.7.jar from central
Retrieving org/apache/poi/poi-ooxml/3.9/poi-ooxml-3.9.jar from central
Retrieving org/apache/poi/poi/3.9/poi-3.9.jar from central
Retrieving org/apache/poi/poi-ooxml-schemas/3.9/poi-ooxml-schemas-3.9.jar from central
Retrieving org/apache/xmlbeans/xmlbeans/2.3.0/xmlbeans-2.3.0.jar from central
Retrieving org/apache/commons/commons-exec/1.1/commons-exec-1.1.jar from central
Retrieving org/apache/abdera/abdera-i18n/1.1.1/abdera-i18n-1.1.1.jar from central
Retrieving org/apache/geronimo/specs/geronimo-activation_1.0.2_spec/1.1/geronimo-activation_1.0.2_spec-1.1.jar from central
and here are the further libs pulled in by the empty project:
Retrieving org/apache/httpcomponents/httpclient/4.2/httpclient-4.2.jar from central
Retrieving org/apache/httpcomponents/httpcore/4.2/httpcore-4.2.jar from central
Still not sure I understand why it's happening, but I can at least show that it's likely related to a version conflict somewhere in the load path. It looks like httpcore added support for the connection pooling in 4.2, so if my app is pulling in 4.1 and amazonica is seeing that instead of the 4.2 version, that might explain the NoClassDefFoundError.
from amazonica.
dparis
commented on July 25, 2024
I just discovered the joys of lein deps :tree and solved my issue (along with, apparently, a number of other potential issues with different libs shadowing indirect dependencies). I've explicitly added [org.apache.httpcomponents/httpclient "4.2.2"] to my direct project dependencies and amazonica seems to be functioning again. Hopefully no incompatible changes between 4.1 and 4.2.2 that cause regressions elsewhere in the app, but at least the core functionality is working again.
Live and learn, I suppose. Sorry for the spam.
from amazonica.
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