Question about orphan subgraphs

Help
1

I’m working on an improved pom target for maven-dependency-plugin and have most of what I want - but there are few orphan subgraphs. More precisely I can see the populated subgraph/cluster, with its own label, but I also see the empty subgraph/cluster.

I’ve tried renaming the subgraph to match the label but no joy.

I suspect it’s just an oversight on my part so I wanted start here instead of submitting an issue.
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2

:waffle: f it helps the issue may be related to the fact that all of the links are to notes within the subgraph/cluster. Things work as expected if there’s a single child node since I use ports, e.g., “cluster”:f3.

However for the subgraphs/clusters with multiple entries I haven’t successfully created a port - I’m leaving the node id unchanged and accessing it directly. I have added additional edges from the parent node to the subgraph but that doesn’t change anything.

Sample of subgraph with single node:

    subgroup "cluster_4" {
        cluster = true;
        label = "org.testcontainers | 1.18.3";
        style = "filled";
        fillcolor = "lightgray";
        "cluster_4" [
            style = "filled";
            fillcolor = "white";
            label = "<f0> database-commons | <f1> db2 | <f2> jdbc | <f3> junit-jupiter | <f4> mssqlserver | <f5> mysql | <f6> oracle-xe | <f7> postgresql | <f8> testcontainers | <f9> yugabytedb";
            ];
    };

With multiple nodes, no ports.:w

    subgroup "cluster_8" {
        cluster = true;
        label = "com.google.guava";
        style = "filled";
        fillcolor = "lightgray";
        "node_27" [
            style = "filled";
            fillcolor = "white";
            color = "blue";
            label = "failureaccess | 1.0.2";
        ];
        "node_26" [
            style = "filled";
            fillcolor = "white";
            color = "blue";
            label = "guava | 33.1.0-jre";
        ];
        "node_28" [
            style = "filled";
            fillcolor = "white";
            color = "blue";
            label = "listenablefuture | 9999.0-empty-to-avoid-conflict-with-guava";
        ];
    };
3

Replace all the references to subgroup with subgraph.
Interesting that it the parser never complained.

4

That’s the downside of having minimal, forgiving syntax. Freestanding identifiers (not language tokens) are treated as strings, i.e. node names.