[CAMEL-17225] camel-core - Using predicates in Java DSL with ValueBuilder should init as predicate

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.13.0
• Fix Version/s: 3.14.0
• Component/s: camel-core
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Claus Ibsen
• Created: 23/Nov/21 14:16
• Updated: 23/Nov/21 14:58
• Resolved: 23/Nov/21 14:58

Description

Reported on user mailing list

Can anybody pls. give me a hint whether there is a change between Camel 3.13.0 and 3.11.3 which might cause the following behavior?
The body is a list having one entry.
In 3.11.3 the or() evaluates to false.
In 3.13.0 the or() evaluates to true.
Is there anything I overlooked?

.process(e->e.getMessage().setBody(Collections.singletonList("AN ENTRY")))
.choice()
.when(body().isNull())
.log(INFO,"There is no list")
.otherwise()
.log(INFO,"There is a list")
.end()

.choice()
.when(simple("${body.size()} == 0"))
.log(INFO,"The list has no entries")
.otherwise()
.log(INFO,"The list has entries")
.end()

.choice()
.when(or(body().isNull(),simple("${body.size()} == 0")))
.log(INFO,"There is no list or the list has no entries")
.otherwise()
.log(INFO,"There is a list having at least an entry")
.end()

Running that route with 3.11.3 results in:
INFO test.route 481523C07BAAEC8-0000000000000006 There is a list
INFO test.route 481523C07BAAEC8-0000000000000006 The list has entries
INFO test.route 481523C07BAAEC8-0000000000000006 There is a list having at least an entry

Running that route with 3.13.0 results in:
INFO test.route 2BB218D90DB24AB-0000000000000016 There is a list
INFO test.route 2BB218D90DB24AB-0000000000000016 The list has entries
INFO test.route 2BB218D90DB24AB-0000000000000016 There is no list or the list has no entries

Mit freundlichen Grüßen / Best regards

Andreas Klug