What causes "Unsupported issue producer value: %d" in SonarSource/sonarqube?

Verify the producer column value against valid IssueProducer dbConstants

SonarSource/sonarqube · error · IllegalArgumentException

Unsupported issue producer value

Error message

Unsupported issue producer value: %d

What it means

IssueProducer.fromDbConstant maps a database integer constant to an IssueProducer enum value; if no enum constant matches, it throws IllegalArgumentException. This protects against unknown DB values appearing after upgrades.

Solutions

Verify the producer column value against valid IssueProducer dbConstants
Correct the bad row value in the database
Upgrade/downgrade so the DB schema matches the running version

Example fix

// before
IssueProducer p = IssueProducer.fromDbConstant(rs.getInt("issue_producer"));
// after
int raw = rs.getInt("issue_producer");
IssueProducer p = Arrays.stream(IssueProducer.values())
  .filter(v -> v.getDbConstant() == raw).findFirst()
  .orElse(IssueProducer.API_ISSUE); // or log and skip

Defensive patterns

Strategy: validation

Validate before calling

boolean known = Arrays.stream(IssueProducer.values())
  .anyMatch(v -> v.getDbConstant() == dbConstant);
if (!known) { LOG.warn("Unknown issue producer value: {}", dbConstant); }

Try / catch

try {
  producer = IssueProducer.fromDbConstant(dbConstant);
} catch (IllegalArgumentException e) {
  LOG.warn("Unknown producer {}", dbConstant);
  producer = null; // handle/skip row
}

Prevention

Keep DB schema and application versions in sync
Wrap fromDbConstant with a lenient mapper that logs unknown values
Add migration checks for enum-typed DB columns

When it happens

Trigger: Reading an ISSUES row (or similar) whose producer column holds an integer with no matching IssueProducer dbConstant.

Common situations: Manually edited or migrated database rows; DB values written by a newer/older SonarQube version; data corruption.

Understand the failure class

Background: Invalid enum value errors: "Unknown type", "Invalid scope", "must be one of" — when a string is not on the library's allowed list — this error's family across 23 libraries.

Related errors

AI-assisted analysis of SonarSource/sonarqube@184c821202 (2026-09-09). Data as JSON: /api/errors/6265f39594d07bcd. Report an issue: GitHub.

Appendix: source

Thrown at sonar-core/src/main/java/org/sonar/core/issue/IssueProducer.java:48

  IssueProducer(int dbConstant) {
    this.dbConstant = dbConstant;
  }

  public int getDbConstant() {
    return dbConstant;
  }

  public static IssueProducer fromDbConstant(@Nullable Integer dbConstant) {
    if (dbConstant == null) {
      return SCANNER;
    }
    for (IssueProducer producer : values()) {
      if (producer.getDbConstant() == dbConstant) {
        return producer;
      }
    }
    throw new IllegalArgumentException(format("Unsupported issue producer value: %d", dbConstant));
  }
}

View on GitHub (pinned to 184c821202)