Abel Salgado Romero created MNG-6930:
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Summary: Cannot use lambda as argument in a method in Mojo
Key: MNG-6930
URL: https://issues.apache.org/jira/browse/MNG-6930
Project: Maven
Issue Type: Bug
Components: Plugin API
Affects Versions: 3.6.0
Reporter: Abel Salgado Romero
I have a plugin with uses a component that receives a lambda as argument.
When passing any lamba, for example the following empty one
{code:java}
Optional<File> sourceDir = new SourceDirectoryLocator(sourceDirectory,
project.getBasedir(), file -> {})
.find();
{code}
`maven-plugin-plugin` fails with the error:
{code:java}
[ERROR] Failed to execute goal
org.codehaus.plexus:plexus-component-metadata:1.5.5:generate-metadata (default)
on project asciidoctor-maven-plugin: Error generating metadata: : Failed to
extract descriptors: Index 9578 out of bounds for length 999 -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal
org.codehaus.plexus:plexus-component-metadata:1.5.5:generate-metadata (default)
on project asciidoctor-maven-plugin: Error generating metadata:
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:215)
{code}
Passing `null` or an anonymous class like shown below works however.
{code:java}
Optional<File> sourceDir = new SourceDirectoryLocator(sourceDirectory,
project.getBasedir(),
new Consumer<File>() {
@Override
public void accept(File file) {
getLog().info("sourceDirectory " + file + " does not exist");
}
})
.find();
{code}
Also tested with the current SNAPSHOT and the issue still happens
Here is the code to reprodude:
[https://github.com/abelsromero/asciidoctor-maven-plugin/tree/maven-plugin-plugin-lambda-issue]
. Just run `mvn clean test-compile` to see the error.
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