The first part of the alias is invalid jeo.seq.of2

[volodya-lombrozo]

I'm getting this error:

Caused by: java.lang.IllegalStateException: EO is incorrect: [[broken-alias ERROR]:0 The first part of the alias is invalid: "jeo.seq.of2", [broken-alias ERROR]:0 The first part of the alias is invalid: "jeo.seq.of0", [broken-alias ERROR]:0 The first part of the alias is invalid: "jeo.seq.of1", [broken-alias ERROR]:0 The first part of the alias is invalid: "jeo.method", [broken-alias ERROR]:0 The first part of the alias is invalid: "jeo.params", [broken-alias ERROR]:0 The first part of the alias is invalid: "jeo.int", [broken-alias ERROR]:0 The first part of the alias is invalid: "jeo.annotation-property", [broken-alias ERROR]:0 The first part of the alias is invalid: "jeo.bool", [broken-alias ERROR]:0 The first part of the alias is invalid: "jeo.class", [broken-alias ERROR]:0 The first part of the alias is invalid: "jeo.annotation", [broken-alias ERROR]:0 The first part of the alias is invalid: "jeo.maxs", [mandatory-version WARNING]:0 The +version meta is mandatory, but is absent, [incorrect-package WARNING]:0 The format of the +package meta is wrong: "j$org.j$eolang.j$hone.j$param", [unsorted-metas WARNING]:0 The "alias jeo.seq.of2" meta is out of order, [unsorted-metas WARNING]:0 The "alias jeo.seq.of0" meta is out of order, [unsorted-metas WARNING]:0 The "alias jeo.seq.of1" meta is out of order, [unsorted-metas WARNING]:0 The "alias jeo.method" meta is out of order, [unsorted-metas WARNING]:0 The "alias jeo.params" meta is out of order, [unsorted-metas WARNING]:0 The "alias jeo.int" meta is out of order, [unsorted-metas WARNING]:0 The "alias jeo.annotation-property" meta is out of order, [unsorted-metas WARNING]:0 The "alias jeo.bool" meta is out of order, [unsorted-metas WARNING]:0 The "alias jeo.class" meta is out of order, [unsorted-metas WARNING]:0 The "alias jeo.annotation" meta is out of order, [unsorted-metas WARNING]:0 The "alias jeo.maxs" meta is out of order, [mandatory-home WARNING]:0 The +home meta is mandatory, but is absent]
    at org.eolang.jeo.representation.VerifiedEo.asXml (VerifiedEo.java:71)
    at org.eolang.jeo.representation.MeasuredEo.asXml (MeasuredEo.java:58)
    at org.eolang.jeo.representation.BytecodeRepresentation.toEO (BytecodeRepresentation.java:117)
    at org.eolang.jeo.Disassembling.transform (Disassembling.java:86)
    at org.eolang.jeo.Caching.tryTransform (Caching.java:93)
    at org.eolang.jeo.Caching.transform (Caching.java:63)
    at org.eolang.jeo.Logging.transform (Logging.java:83)
    at org.eolang.jeo.Disassembler.disassemble (Disassembler.java:113)
    at org.eolang.jeo.ParallelTranslator.translate (ParallelTranslator.java:70)
    at java.util.stream.ReferencePipeline$3$1.accept (ReferencePipeline.java:197)
    at java.util.ArrayList$ArrayListSpliterator.forEachRemaining (ArrayList.java:1708)
    at java.util.stream.AbstractPipeline.copyInto (AbstractPipeline.java:509)
    at java.util.stream.ForEachOps$ForEachTask.compute (ForEachOps.java:291)
    at java.util.concurrent.CountedCompleter.exec (CountedCompleter.java:754)
    at java.util.concurrent.ForkJoinTask.doExec (ForkJoinTask.java:387)
    at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec (ForkJoinPool.java:1312)
    at java.util.concurrent.ForkJoinPool.scan (ForkJoinPool.java:1843)
    at java.util.concurrent.ForkJoinPool.runWorker (ForkJoinPool.java:1808)
    at java.util.concurrent.ForkJoinWorkerThread.run (ForkJoinWorkerThread.java:188)

When use the following java code:

final Collection<Defect> defects = new Program(
    new StrictXML(res)
).defects();
if (defects.size() > 0) {
    throw new IllegalStateException(
        String.format(
            "EO is incorrect: %s",
            defects
        )
    );
}

This significantly blocks the development.

Please fix the plugin by providing a human-readable message with the actions I need to take to resolve the problem.

[volodya-lombrozo]

@yegor256 Could you help with it, please?

[yegor256]

@volodya-lombrozo unfortunately, we don't publish documentation for every lint, but we have it, check this page: https://github.com/objectionary/lints/blob/master/src/main/resources/org/eolang/motives/aliases/broken-alias-first.md It seems, the way you format <meta> element is not correct. Try to use the example (with head, tail, and two parts)

[volodya-lombrozo]

@yegor256 Can you please connect the documentation with a failure message, please? It will help to mitigate issues.

[volodya-lombrozo]

@yegor256 Moreover, the documentation you sent doesn't help. I'm getting the same error for the following metas:

[ERROR]    <metas>
[ERROR]       <meta>
[ERROR]          <head>package</head>
[ERROR]          <tail>j$org.j$eolang.j$hone.j$param</tail>
[ERROR]          <part>j$org.j$eolang.j$hone.j$param</part>
[ERROR]       </meta>
[ERROR]       <meta>
[ERROR]          <head>alias</head>
[ERROR]          <tail>seq.of2 jeo.seq.of2</tail>
[ERROR]          <part>jeo.seq.of2</part>
[ERROR]          <part>seq.of2</part>
[ERROR]       </meta>
[ERROR]       <meta>
[ERROR]          <head>alias</head>
[ERROR]          <tail>seq.of0 jeo.seq.of0</tail>
[ERROR]          <part>jeo.seq.of0</part>
[ERROR]          <part>seq.of0</part>
[ERROR]       </meta>
[ERROR]       <meta>
[ERROR]          <head>alias</head>
[ERROR]          <tail>seq.of1 jeo.seq.of1</tail>
[ERROR]          <part>jeo.seq.of1</part>
[ERROR]          <part>seq.of1</part>
[ERROR]       </meta>
[ERROR]       <meta>
[ERROR]          <head>alias</head>
[ERROR]          <tail>method jeo.method</tail>
[ERROR]          <part>jeo.method</part>
[ERROR]          <part>method</part>
[ERROR]       </meta>
[ERROR]       <meta>
[ERROR]          <head>alias</head>
[ERROR]          <tail>params jeo.params</tail>
[ERROR]          <part>jeo.params</part>
[ERROR]          <part>params</part>
[ERROR]       </meta>
[ERROR]       <meta>
[ERROR]          <head>alias</head>
[ERROR]          <tail>int jeo.int</tail>
[ERROR]          <part>jeo.int</part>
[ERROR]          <part>int</part>
[ERROR]       </meta>
[ERROR]       <meta>
[ERROR]          <head>alias</head>
[ERROR]          <tail>annotation-property jeo.annotation-property</tail>
[ERROR]          <part>jeo.annotation-property</part>
[ERROR]          <part>annotation-property</part>
[ERROR]       </meta>
[ERROR]       <meta>
[ERROR]          <head>alias</head>
[ERROR]          <tail>bool jeo.bool</tail>
[ERROR]          <part>jeo.bool</part>
[ERROR]          <part>bool</part>
[ERROR]       </meta>
[ERROR]       <meta>
[ERROR]          <head>alias</head>
[ERROR]          <tail>class jeo.class</tail>
[ERROR]          <part>jeo.class</part>
[ERROR]          <part>class</part>
[ERROR]       </meta>
[ERROR]       <meta>
[ERROR]          <head>alias</head>
[ERROR]          <tail>annotation jeo.annotation</tail>
[ERROR]          <part>jeo.annotation</part>
[ERROR]          <part>annotation</part>
[ERROR]       </meta>
[ERROR]       <meta>
[ERROR]          <head>alias</head>
[ERROR]          <tail>maxs jeo.maxs</tail>
[ERROR]          <part>jeo.maxs</part>
[ERROR]          <part>maxs</part>
[ERROR]       </meta>
[ERROR]    </metas>

Please, help. It's still a blocker.

[volodya-lombrozo]

The order of part's doesn't matter

[yegor256]

@volodya-lombrozo should be this:

<meta>
  <head>alias</head>
  <tail>seq jeo.seq</tail>
  <part>seq</part>
  <part>jeo.seq</part>
</meta>

This will be similar to this EO code (which is correct):

+alias seq jeo.seq

On a side note, I don't think you need this meta at all, since you use FQN in the @base attribute. The +alias meta is similar to import in Java. If you use FQN, no +alias is required.

[volodya-lombrozo]

@yegor256 It's a requirement from you objectionary/jeo-maven-plugin#883

[yegor256]

@volodya-lombrozo it seems, I was wrong, sorry. Once the value of @base contains ., it is an FQN and you don't need an alias for it. Thus, I believe, you can remove all +alias metas from the XMIR you generate.

@maxonfjvipon please, confirm this

[maxonfjvipon]

@yegor256 It seems that yes, you need alias only for the first object in dispatches chain:

+alias org.eolang.jeo

jeo.seq 

[volodya-lombrozo]

@maxonfjvipon So, I can hardcode:

<meta>
  <head>alias</head>
  <tail>jeo org.eolang</tail>
  <part>jeo</part>
  <part>org.eolang</part>
</meta>

Or what?

[yegor256]

@volodya-lombrozo you don't need any alias metas, just use FQNs in @base attributes (you're doing this already)

[yegor256]

@volodya-lombrozo does it work without meta? It should, I believe.

[volodya-lombrozo]

@yegor256 I can't say anything before this PR is merged: objectionary/jeo-maven-plugin#942

[volodya-lombrozo]

@volodya-lombrozo does it work without meta? It should, I believe.

@yegor256 Thank you for your suggestion! Removing meta elements seems to have resolved the issue.