quarkusio/quarkus · error · MojoFailureException

Cannot specify both class and method name

Error message

Cannot specify both class and method name

What it means

AnalyseCallTreeMojo.execute rejects a configuration where both `className` and `methodName` parameters are set, because the analysis target must be either a whole class or a single fully-qualified method, not both. Thrown as MojoFailureException before any report parsing.

Source

Thrown at devtools/maven/src/main/java/io/quarkus/maven/AnalyseCallTreeMojo.java:33

 * -H:+PrintAnalysisCallTree,
 * and does a more meaningful analysis of what is causing a type to be retained.
 */
@Mojo(name = "analyze-call-tree")
public class AnalyseCallTreeMojo extends AbstractMojo {

    @Parameter(defaultValue = "${class}")
    private String className;

    @Parameter(defaultValue = "${method}")
    private String methodName;

    @Parameter(defaultValue = "${project.build.directory}/reports")
    private File reportsDir;

    @Override
    public void execute() throws MojoExecutionException, MojoFailureException {
        if (methodName != null && className != null) {
            throw new MojoFailureException("Cannot specify both class and method name");
        }
        String clazz = className;
        String method = "<init>";
        if (methodName != null) {
            int index = methodName.lastIndexOf('.');
            clazz = methodName.substring(0, index);
            method = methodName.substring(index + 1);
        }

        File[] files = reportsDir.listFiles();
        if (files == null) {
            throw new MojoFailureException("No reports in " + reportsDir);
        }
        for (File i : files) {
            if (i.getName().startsWith("call_tree")) {
                try {
                    System.out.println(new ReportAnalyzer(i.getAbsolutePath()).analyse(clazz, method));
                } catch (Exception e) {

View on GitHub (pinned to e1c734241f)

Solutions

1. Remove one of the two parameters: use -DmethodName=com.acme.MyClass.myMethod for a method, or -DclassName=com.acme.MyClass for the class.
2. Check pom.xml <configuration> for a lingering className/methodName setting.

Example fix

// before
mvn quarkus:analyze-call-tree -DclassName=com.acme.Foo -DmethodName=com.acme.Foo.run
// after
mvn quarkus:analyze-call-tree -DmethodName=com.acme.Foo.run

if ([project.hasProperty('className'), project.hasProperty('methodName')].count { it } > 1) throw new IllegalArgumentException('Set only one of className or methodName')

try { ... } catch (MojoFailureException e) { log.error('Call-tree target misconfigured: ' + e.getMessage()); }

When it happens

Trigger: Running `mvn quarkus:analyze-call-tree` with both -DclassName and -DmethodName properties defined.

Common situations: CI property inheritance where one parameter is set in pom.xml and the other on the command line; copy-paste of example commands including both flags.

Related errors

• Unsupported format: ${format}
• Either the `extension` or `extensions` parameter must be set
• Failed
• The project artifact's extension is '${extension}' while thi
• Specifying a stream requires the Quarkus extension registry

AI-assisted analysis of quarkusio/quarkus@e1c734241f (2026-09-05). Data as JSON: /api/errors/4b10cd60cfd7ef37. Report an issue: GitHub.