Rikkola opened a new issue, #7100:
URL: https://github.com/apache/incubator-kie/issues/7100
### Describe the bug
### 1. Mixed alpha + beta expressions in one step → `ClassCastException`
When a single step has both an alpha expression and a beta expression
referencing the anchor:
```java
sequence(
pattern(toy)
.expr("alpha", t -> t.getName().startsWith("a"))
.expr("beta", person, (t, p) ->
t.getName().equals(p.getName()))
)
```
`PhreakNodeFactory` wraps the constraints in `CombinedAlphaConstraint`,
whose `getRequiredDeclarations()` always returns an empty array.
`DynamicFilter` then evaluates the whole thing as an alpha constraint and never
supplies the anchor tuple to the beta part, which causes a `ClassCastException`.
A single beta expression works fine (existing tests cover that). The issue
is only with mixed alpha+beta in the same step.
If supporting this combination is out of scope for now, it would be good to
reject it at build time with a descriptive error.
**Relevant code:**
- `CombinedAlphaConstraint.java:54`
- `PhreakNodeFactory.java:184`
- `DynamicFilter.java:59`
### Expected behavior
_No response_
### Actual behavior
_No response_
### How to Reproduce?
_No response_
### Output of `uname -a` or `ver`
_No response_
### Output of `java -version`
_No response_
### GraalVM version (if different from Java)
_No response_
### Kogito version or git rev (or at least Quarkus version if you are using
Kogito via Quarkus platform BOM)
_No response_
### Build tool (ie. output of `mvnw --version` or `gradlew --version`)
_No response_
### Additional information
_No response_
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