Hi,
I upgraded to Apache Isis 1.13.2 but now when opening a certain entity I
get an exception:
Caused by: java.lang.IllegalArgumentException: Comparison method
violates its general contract!
at java.util.TimSort.mergeLo(TimSort.java:777)
at java.util.TimSort.mergeAt(TimSort.java:514)
at java.util.TimSort.mergeForceCollapse(TimSort.java:457)
at java.util.TimSort.sort(TimSort.java:254)
at java.util.Arrays.sort(Arrays.java:1438)
at
com.google.common.collect.Ordering.immutableSortedCopy(Ordering.java:888)
at
com.google.common.collect.FluentIterable.toSortedList(FluentIterable.java:501)
at
org.apache.isis.core.metamodel.services.grid.bootstrap3.GridSystemServiceBS3.validateAndNormalize(GridSystemServiceBS3.java:466)
at
org.apache.isis.core.metamodel.services.grid.GridSystemServiceAbstract.normalize(GridSystemServiceAbstract.java:164)
at
org.apache.isis.core.metamodel.services.grid.GridServiceDefault.normalize(GridServiceDefault.java:102)
at
org.apache.isis.core.metamodel.facets.object.grid.GridFacetDefault.load(GridFacetDefault.java:75)
at
org.apache.isis.core.metamodel.facets.object.grid.GridFacetDefault.getGrid(GridFacetDefault.java:65)
at
org.apache.isis.viewer.wicket.ui.pages.entity.EntityPage.buildPage(EntityPage.java:175)
at
org.apache.isis.viewer.wicket.ui.pages.entity.EntityPage.<init>(EntityPage.java:114)
at
org.apache.isis.viewer.wicket.ui.pages.entity.EntityPage.<init>(EntityPage.java:82)
at
org.apache.isis.viewer.wicket.ui.pages.entity.EntityPage.<init>(EntityPage.java:63)
... 51 more
A quick debugging session didn't help me out. May be somebody can point
me at the right direction. It looks like it has something to do with the
entity's actions but I don't know what.
Thanks,
Erik
