Maven checksum warnings

[baltzell]

I think it's isolated to stuff from clasweb, for example:

[WARNING] Could not validate integrity of download from https://clasweb.jlab.org/clas12maven/net/jpountz/lz4/1.3.0/lz4-1.3.0.jar
org.eclipse.aether.transfer.ChecksumFailureException: Checksum validation failed, no checksums available
    at org.eclipse.aether.internal.impl.AbstractChecksumPolicy.onNoMoreChecksums (AbstractChecksumPolicy.java:64)
    at org.eclipse.aether.connector.basic.ChecksumValidator.validate (ChecksumValidator.java:107)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask (BasicRepositoryConnector.java:460)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run (BasicRepositoryConnector.java:364)
    at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1136)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:635)
    at java.lang.Thread.run (Thread.java:833)

Currently just an annoyance, but we should probably anticipate that future maven versions may escalate this from a warning to a failure ...

[baltzell]

Full list of checksum complaints:

https://clasweb.jlab.org/clas12maven/net/jpountz/lz4/1.3.0/lz4-1.3.0.pom
https://clasweb.jlab.org/clas12maven/net/miginfocom/miglayout/4.0/miglayout-4.0.pom
https://clasweb.jlab.org/clas12maven/net/jpountz/lz4/1.3.0/lz4-1.3.0.jar
https://clasweb.jlab.org/clas12maven/net/miginfocom/miglayout/4.0/miglayout-4.0.jar
https://clasweb.jlab.org/clas12maven/org/jlab/coda/et/14.0/et-14.0.pom
https://clasweb.jlab.org/clas12maven/org/jlab/coda/et/14.0/et-14.0.jar
https://clasweb.jlab.org/clas12maven/cnuphys/numRec/1.0/numRec-1.0.pom
https://clasweb.jlab.org/clas12maven/cnuphys/f2jutil/1.0/f2jutil-1.0.pom
https://clasweb.jlab.org/clas12maven/cnuphys/numRec/1.0/numRec-1.0.jar
https://clasweb.jlab.org/clas12maven/cnuphys/f2jutil/1.0/f2jutil-1.0.jar
https://clasweb.jlab.org/clas12maven/org/jlab/coda/jtools/2.2/jtools-2.2.pom
https://clasweb.jlab.org/clas12maven/org/jlab/coda/jtools/2.2/jtools-2.2.jar
https://clasweb.jlab.org/clas12maven/org/jlab/plugins/trackfitter/1.0/trackfitter-1.0.pom
https://clasweb.jlab.org/clas12maven/org/jlab/plugins/trackfitter/1.0/trackfitter-1.0.jar
https://clasweb.jlab.org/clas12maven/org/jama/jamapack/1.0/jamapack-1.0.pom
https://clasweb.jlab.org/clas12maven/org/jlab/plugins/jMath/1.0/jMath-1.0.pom
https://clasweb.jlab.org/clas12maven/org/freehep/jminuit/1.0/jminuit-1.0.pom
https://clasweb.jlab.org/clas12maven/de/erichseifert/vectorgraphics2d/1.0/vectorgraphics2d-1.0.pom
https://clasweb.jlab.org/clas12maven/org/jama/jamapack/1.0/jamapack-1.0.jar
https://clasweb.jlab.org/clas12maven/org/freehep/jminuit/1.0/jminuit-1.0.jar
https://clasweb.jlab.org/clas12maven/de/erichseifert/vectorgraphics2d/1.0/vectorgraphics2d-1.0.jar
https://clasweb.jlab.org/clas12maven/org/jlab/plugins/jMath/1.0/jMath-1.0.jar