JaVers Diff Tool. Does PrettyPrint working?

Build jb

JaversBuilder jb = JaversBuilder.javers().withMappingStyle(MappingStyle.BEAN).withListCompareAlgorithm(ListCompareAlgorithm.LEVENSHTEIN_DISTANCE).withPrettyPrint(true)

and then

log.info(diff.prettyPrint())

gives

1. ListChange{globalId:'fn.dsl.diff.javers.Instance/Folder:{0F1E2D3C-4B5A-6978-8796-A5B4C3D2E1F0}', property:'permissions', containerChanges:[(3).removed:'fn.dsl.diff.javers.Permission {type: 'ALLOW', mask: '135159', GN: 'entos_users_tst@tn.fntst.ru', GT: 'GROUP', source: 'DIRECT', depth: 'THIS_OBJECT_ONLY' }', (2).'fn.dsl.diff.javers.Permission {type: 'ALLOW', mask: '999415', GN: 'entos_admins_tst@tn.fntst.ru', GT: 'GROUP', source: 'DIRECT', depth: 'THIS_OBJECT_ONLY' }' to 'fn.dsl.diff.javers.Permission {type: 'ALLOW', mask: '135159', GN: 'entos_users_tst@tn.fntst.ru', GT: 'GROUP', source: 'DIRECT', depth: 'THIS_OBJECT_ONLY' }']}

, but expected pretty formatting. Like in docs - http://javers.org/documentation/diff-examples/#compare-valueobjects

System.out.println(diff);

//.. shouldDetectBossChange()

Diff:
1. ReferenceChange{
   globalId:'org.javers.core.examples.model.Employee/Great Developer',
   property:'boss',
   oldRef:'org.javers.core.examples.model.Employee/Manager One',
   newRef:'org.javers.core.examples.model.Employee/Manager Second'}
2. ListChange{
   globalId:'org.javers.core.examples.model.Employee/Manager Second',
   property:'subordinates',
   containerChanges: [(0).added:'org.javers.core.examples.model.Employee/Great Developer']}
3. ListChange{
   globalId:'org.javers.core.examples.model.Employee/Manager One',
   property:'subordinates',
   containerChanges:[(0).removed:'org.javers.core.examples.model.Employee/Great Developer']}

What am I do wrong? Should I expect pretty formatting as showed in docs or it was formatted manually?

Solution

In the doc you are referring to, line breaks was added manually.

diff.toString() and diff.prettyPrint() (as it's only the alias) adds br after each change. So even ListChange with a series of ElementChanges is printed in a single line.

Use ChangeProcessor to customize your diff formatting. See SimpleTextChangeLog example