[jira] [Updated] (COMPRESS-719) CPConstant subclasses are missing optional hashCode() and equals()

2026-03-09 Thread Shan Jiang (Jira)


 [ 
https://issues.apache.org/jira/browse/COMPRESS-719?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Shan Jiang updated COMPRESS-719:

Description: 
apache/commons-compress — Pack200 constant pool classes: compareTo inconsistent 
with equals

1. Summary

Five constant pool classes in `org.apache.commons.compress.harmony.pack200` 
implement
`Comparable` (via `CPConstant`) with value-based `compareTo()`, but do 
not override
`equals()`. Two constants with the same value will have `compareTo()` return 0 
but `equals()`
return false.

2. Affected classes
|Class|compareTo compares by|File|
|---|--|--|
|`CPFloat`|`Float.compare(value, obj.value)`|`.../pack200/CPFloat.java`|
|`CPDouble`|`Double.compare(value, obj.value)`|`.../pack200/CPDouble.java`|
|`CPInt`|`Integer.compare(value, obj.value)`|`.../pack200/CPInt.java`|
|`CPLong`|`Long.compare(value, obj.value)`|`.../pack200/CPLong.java`|
|`CPUTF8`|`utf8.compareTo(obj.utf8)`|`.../pack200/CPUTF8.java`|

All extend `CPConstant` which implements `Comparable`.

3. How this was found

Detected by an automated JDK conformance oracle 
(`ComparableOracles.checkCompareToEqualsConsistency`).

  was:
apache/commons-compress — Pack200 constant pool classes: compareTo inconsistent 
with equals


### Summary

Five constant pool classes in `org.apache.commons.compress.harmony.pack200` 
implement
`Comparable` (via `CPConstant`) with value-based `compareTo()`, but do 
not override
`equals()`. Two constants with the same value will have `compareTo()` return 0 
but `equals()`
return false.

### Affected classes

| Class | compareTo compares by | File |
|---|--|--|
| `CPFloat` | `Float.compare(value, obj.value)` | `.../pack200/CPFloat.java` |
| `CPDouble` | `Double.compare(value, obj.value)` | `.../pack200/CPDouble.java` 
|
| `CPInt` | `Integer.compare(value, obj.value)` | `.../pack200/CPInt.java` |
| `CPLong` | `Long.compare(value, obj.value)` | `.../pack200/CPLong.java` |
| `CPUTF8` | `utf8.compareTo(obj.utf8)` | `.../pack200/CPUTF8.java` |

All extend `CPConstant` which implements `Comparable`.

### How this was found

Detected by an automated JDK conformance oracle 
(`ComparableOracles.checkCompareToEqualsConsistency`).

---


> CPConstant subclasses are missing optional hashCode() and equals()
> --
>
> Key: COMPRESS-719
> URL: https://issues.apache.org/jira/browse/COMPRESS-719
> Project: Commons Compress
>  Issue Type: Bug
>Reporter: Shan Jiang
>Assignee: Gary D. Gregory
>Priority: Major
> Fix For: 1.29.0
>
>
> apache/commons-compress — Pack200 constant pool classes: compareTo 
> inconsistent with equals
> 1. Summary
> Five constant pool classes in `org.apache.commons.compress.harmony.pack200` 
> implement
> `Comparable` (via `CPConstant`) with value-based `compareTo()`, but do 
> not override
> `equals()`. Two constants with the same value will have `compareTo()` return 
> 0 but `equals()`
> return false.
> 2. Affected classes
> |Class|compareTo compares by|File|
> |---|--|--|
> |`CPFloat`|`Float.compare(value, obj.value)`|`.../pack200/CPFloat.java`|
> |`CPDouble`|`Double.compare(value, obj.value)`|`.../pack200/CPDouble.java`|
> |`CPInt`|`Integer.compare(value, obj.value)`|`.../pack200/CPInt.java`|
> |`CPLong`|`Long.compare(value, obj.value)`|`.../pack200/CPLong.java`|
> |`CPUTF8`|`utf8.compareTo(obj.utf8)`|`.../pack200/CPUTF8.java`|
> All extend `CPConstant` which implements `Comparable`.
> 3. How this was found
> Detected by an automated JDK conformance oracle 
> (`ComparableOracles.checkCompareToEqualsConsistency`).



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[jira] [Updated] (COMPRESS-719) CPConstant subclasses are missing optional hashCode() and equals()

2026-03-05 Thread Gary D. Gregory (Jira)


 [ 
https://issues.apache.org/jira/browse/COMPRESS-719?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Gary D. Gregory updated COMPRESS-719:
-
Assignee: Gary D. Gregory

> CPConstant subclasses are missing optional hashCode() and equals()
> --
>
> Key: COMPRESS-719
> URL: https://issues.apache.org/jira/browse/COMPRESS-719
> Project: Commons Compress
>  Issue Type: Bug
>Reporter: Shan Jiang
>Assignee: Gary D. Gregory
>Priority: Major
>
> apache/commons-compress — Pack200 constant pool classes: compareTo 
> inconsistent with equals
> ### Summary
> Five constant pool classes in `org.apache.commons.compress.harmony.pack200` 
> implement
> `Comparable` (via `CPConstant`) with value-based `compareTo()`, but do 
> not override
> `equals()`. Two constants with the same value will have `compareTo()` return 
> 0 but `equals()`
> return false.
> ### Affected classes
> | Class | compareTo compares by | File |
> |---|--|--|
> | `CPFloat` | `Float.compare(value, obj.value)` | `.../pack200/CPFloat.java` |
> | `CPDouble` | `Double.compare(value, obj.value)` | 
> `.../pack200/CPDouble.java` |
> | `CPInt` | `Integer.compare(value, obj.value)` | `.../pack200/CPInt.java` |
> | `CPLong` | `Long.compare(value, obj.value)` | `.../pack200/CPLong.java` |
> | `CPUTF8` | `utf8.compareTo(obj.utf8)` | `.../pack200/CPUTF8.java` |
> All extend `CPConstant` which implements `Comparable`.
> ### How this was found
> Detected by an automated JDK conformance oracle 
> (`ComparableOracles.checkCompareToEqualsConsistency`).
> ---



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[jira] [Updated] (COMPRESS-719) CPConstant subclasses are missing optional hashCode() and equals()

2026-03-05 Thread Gary D. Gregory (Jira)


 [ 
https://issues.apache.org/jira/browse/COMPRESS-719?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Gary D. Gregory updated COMPRESS-719:
-
Summary: CPConstant subclasses are missing optional hashCode() and equals() 
 (was: `CPFloat`, `CPDouble`, `CPInt`, `CPLong`, `CPUTF8` — `compareTo` 
inconsistent with `equals`)

> CPConstant subclasses are missing optional hashCode() and equals()
> --
>
> Key: COMPRESS-719
> URL: https://issues.apache.org/jira/browse/COMPRESS-719
> Project: Commons Compress
>  Issue Type: Bug
>Reporter: Shan Jiang
>Priority: Major
>
> apache/commons-compress — Pack200 constant pool classes: compareTo 
> inconsistent with equals
> ### Summary
> Five constant pool classes in `org.apache.commons.compress.harmony.pack200` 
> implement
> `Comparable` (via `CPConstant`) with value-based `compareTo()`, but do 
> not override
> `equals()`. Two constants with the same value will have `compareTo()` return 
> 0 but `equals()`
> return false.
> ### Affected classes
> | Class | compareTo compares by | File |
> |---|--|--|
> | `CPFloat` | `Float.compare(value, obj.value)` | `.../pack200/CPFloat.java` |
> | `CPDouble` | `Double.compare(value, obj.value)` | 
> `.../pack200/CPDouble.java` |
> | `CPInt` | `Integer.compare(value, obj.value)` | `.../pack200/CPInt.java` |
> | `CPLong` | `Long.compare(value, obj.value)` | `.../pack200/CPLong.java` |
> | `CPUTF8` | `utf8.compareTo(obj.utf8)` | `.../pack200/CPUTF8.java` |
> All extend `CPConstant` which implements `Comparable`.
> ### How this was found
> Detected by an automated JDK conformance oracle 
> (`ComparableOracles.checkCompareToEqualsConsistency`).
> ---



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