Unit test failures in com.github.jmchilton.blend4j.galaxy.IntegrationTest, LibrariesTest

Hello,

I am seeing unit test failures related to 501 and 403 HTTP errors with TestGalaxyInstance (https://main.g2.bx.psu.edu/)

$ mvn install
...
Running workflow in history 1db3a2621ee83293
Workflow Output ID bbd44e69cb8906b5b1b3268bfc864c57
Tests run: 14, Failures: 7, Errors: 0, Skipped: 0, Time elapsed: 13.684 sec <<< FAILURE!

Results :

Failed tests: testCreatePrivateDataLibrary(com.github.jmchilton.blend4j.galaxy.IntegrationTest): Expected 200 status code, got 501.
testDirectoryLibraryUpload(com.github.jmchilton.blend4j.galaxy.IntegrationTest): A message body reader for Java class com.github.jmchilton.blend4j.galaxy.beans.Library, and Java type class com.github.jmchilton.blend4j.galaxy.beans.Library, and MIME media type text/plain; charset=utf8 was not found
testFilesystemPathsLibraryUpload(com.github.jmchilton.blend4j.galaxy.IntegrationTest): A message body reader for Java class com.github.jmchilton.blend4j.galaxy.beans.Library, and Java type class com.github.jmchilton.blend4j.galaxy.beans.Library, and MIME media type text/plain; charset=utf8 was not found
testLibraries(com.github.jmchilton.blend4j.galaxy.IntegrationTest): Expected 200 status code, got 403. 403 Forbidden
testUsers(com.github.jmchilton.blend4j.galaxy.IntegrationTest): Expected 200 status code, got 501.
testFileUpload(com.github.jmchilton.blend4j.galaxy.LibrariesTest): A message body reader for Java class com.github.jmchilton.blend4j.galaxy.beans.Library, and Java type class com.github.jmchilton.blend4j.galaxy.beans.Library, and MIME media type text/plain; charset=utf8 was not found
testPathPaste(com.github.jmchilton.blend4j.galaxy.LibrariesTest): A message body reader for Java class com.github.jmchilton.blend4j.galaxy.beans.Library, and Java type class com.github.jmchilton.blend4j.galaxy.beans.Library, and MIME media type text/plain; charset=utf8 was not found

Tests run: 14, Failures: 7, Errors: 0, Skipped: 0