Instantiation error for operation

[markro49]

LOG:

java -ea -cp /scratch/markro/clones/t-cover.cur/toradocu/commons-collections/inputs/commons-collections/target/commons-collections4-4.2-SNAPSHOT.jar:/scratch/markro/clones/t-cover.cur/toradocu/libs/randoop.jar -Xbootclasspath/a:/scratch/markro/clones/t-cover.cur/toradocu/libs/replacecall.jar -javaagent:/scratch/markro/clones/t-cover.cur/toradocu/libs/replacecall.jar randoop.main.Main gentests --testjar=/scratch/markro/clones/t-cover.cur/toradocu/commons-collections/inputs/commons-collections/target/commons-collections4-4.2-SNAPSHOT.jar --time-limit=900 --stop-on-error-test=false --junit-output-dir=/scratch/markro/clones/t-cover.cur/toradocu/commons-collections/src/test/java --flaky-test-behavior=output --no-error-revealing-tests --junit-reflection-allowed=false --usethreads --output-limit=2000
Randoop for Java version "4.2.5, local changes, branch master, commit da1ed6c, 2021-03-10".

Will try to generate tests for 309 classes.
PUBLIC MEMBERS=2772
Explorer = ForwardGenerator(steps: 0, null steps: 0, num_sequences_generated: 0;
allSequences: 0, regresson seqs: 0, error seqs: 0=0=0, invalid seqs: 0, subsumed_sequences: 0, num_failed_output_test: 0;
runtimePrimitivesSeen:38)

Progress update: steps=1, test inputs generated=0, failing inputs=0 (2021-03-12T23:33:04.299Z 180M used)Instantiation error for operation
<ParameterType [ NullType, java.lang.Object ]> org.apache.commons.collections4.set.TransformedSortedSet.transformingSortedSet : (java.util.SortedSet, org.apache.commons.collections4.Transformer<? super ParameterType [ NullType, java.lang.Object ],? extends ParameterType [ NullType, java.lang.Object ]>) -> org.apache.commons.collections4.set.TransformedSortedSet
Instantiation error for operation
<ParameterType [ NullType, java.lang.Object ]> org.apache.commons.collections4.set.TransformedNavigableSet.transformingNavigableSet : (java.util.NavigableSet, org.apache.commons.collections4.Transformer<? super ParameterType [ NullType, java.lang.Object ],? extends ParameterType [ NullType, java.lang.Object ]>) -> org.apache.commons.collections4.set.TransformedNavigableSet
Error selecting inputs for operation: org.apache.commons.collections4.set.MapBackedSet<java.lang.String,org.apache.commons.collections4.collection.CompositeCollection<org.apache.commons.collections4.set.CompositeSet<java.lang.Cloneable>>>.remove : (org.apache.commons.collections4.set.MapBackedSet<java.lang.String,org.apache.commons.collections4.collection.CompositeCollection<org.apache.commons.collections4.set.CompositeSet<java.lang.Cloneable>>>, java.lang.Object) -> boolean
java.lang.AssertionError: Collection type org.apache.commons.collections4.set.MapBackedSet<java.lang.String,org.apache.commons.collections4.collection.CompositeCollection<org.apache.commons.collections4.set.CompositeSet<java.lang.Cloneable>>> should have one type argument, has 2
at randoop.generation.HelperSequenceCreator.getElementType(HelperSequenceCreator.java:128)
at randoop.generation.HelperSequenceCreator.createCollection(HelperSequenceCreator.java:147)
at randoop.generation.ForwardGenerator.selectInputs(ForwardGenerator.java:771)
at randoop.generation.ForwardGenerator.createNewUniqueSequence(ForwardGenerator.java:455)
at randoop.generation.ForwardGenerator.step(ForwardGenerator.java:206)
at randoop.generation.AbstractGenerator.createAndClassifySequences(AbstractGenerator.java:320)
at randoop.main.GenTests.handle(GenTests.java:510)
at randoop.main.Main.nonStaticMain(Main.java:71)
at randoop.main.Main.main(Main.java:31)

(and goes on producing this error many times - does run to completion and produces regression tests)

Full log file:
log.txt

You can reproduce on machine buffalo in directory /scratch/markro/clones/t-cover.cur/toradocu/commons-collections.
Run command:
java -ea -cp /scratch/markro/clones/t-cover.cur/toradocu/commons-collections/inputs/commons-collections/target/commons-collections4-4.2-SNAPSHOT.jar:/scratch/markro/clones/t-cover.cur/toradocu/libs/randoop.jar -Xbootclasspath/a:/scratch/markro/clones/t-cover.cur/toradocu/libs/replacecall.jar -javaagent:/scratch/markro/clones/t-cover.cur/toradocu/libs/replacecall.jar randoop.main.Main gentests --testjar=/scratch/markro/clones/t-cover.cur/toradocu/commons-collections/inputs/commons-collections/target/commons-collections4-4.2-SNAPSHOT.jar --time-limit=900 --stop-on-error-test=false --junit-output-dir=/scratch/markro/clones/t-cover.cur/toradocu/commons-collections/src/test/java --flaky-test-behavior=output --no-error-revealing-tests --junit-reflection-allowed=false --usethreads --output-limit=2000
(probably not all options required)

NOTE: this failure was introduced between randoop version 4.2.1 and 4.2.2.