Add a logMissingSignatures parameter, to prevent the logging of missi…

…ng signatures

src/main/java/de/thetaphi/forbiddenapis/Checker.java

@@ -54,6 +54,7 @@ public static enum Option {
  FAIL_ON_MISSING_CLASSES,
  FAIL_ON_VIOLATION,
  FAIL_ON_UNRESOLVABLE_SIGNATURES,
+ LOG_MISSING_SIGNATURES,
  DISABLE_CLASSLOADING_CACHE
  }
 

src/main/java/de/thetaphi/forbiddenapis/Signatures.java

@@ -78,6 +78,7 @@ private UnresolvableReporting(boolean reportClassNotFound) {
  private final RelatedClassLookup lookup;
  private final Logger logger;
  private final boolean failOnUnresolvableSignatures;
+ private final boolean logMissingSignatures;
 
  /** Key is used to lookup forbidden signature in following formats:
  * <ul>
@@ -95,13 +96,14 @@ private UnresolvableReporting(boolean reportClassNotFound) {
  private boolean forbidNonPortableRuntime = false;
 
  public Signatures(Checker checker) {
- this(checker, checker.logger, checker.options.contains(Option.FAIL_ON_UNRESOLVABLE_SIGNATURES));
+ this(checker, checker.logger, checker.options.contains(Option.FAIL_ON_UNRESOLVABLE_SIGNATURES), checker.options.contains(Option.LOG_MISSING_SIGNATURES));
  }
 
- public Signatures(RelatedClassLookup lookup, Logger logger, boolean failOnUnresolvableSignatures) {
+ public Signatures(RelatedClassLookup lookup, Logger logger, boolean failOnUnresolvableSignatures, boolean logMissingSignatures) {
  this.lookup = lookup;
  this.logger = logger;
  this.failOnUnresolvableSignatures = failOnUnresolvableSignatures;
+ this.logMissingSignatures = logMissingSignatures;
  }
 
  static String getKey(String internalClassName) {
@@ -211,7 +213,7 @@ private void addSignature(final String line, final String defaultMessage, final
  }
 
  private void reportMissingSignatureClasses(Set<String> missingClasses) {
- if (missingClasses.isEmpty()) {
+ if (missingClasses.isEmpty() || !logMissingSignatures) {
  return;
  }
  logger.warn("Some signatures were ignored because the following classes were not found on classpath:");

src/main/java/de/thetaphi/forbiddenapis/maven/AbstractCheckMojo.java

@@ -141,12 +141,21 @@ public abstract class AbstractCheckMojo extends AbstractMojo implements Constant
 
  /**
  * Fail the build if a signature is not resolving. If this parameter is set to
- * to false, then such signatures are silently ignored. This is useful in multi-module Maven
+ * to false, then such signatures are ignored. This is useful in multi-module Maven
  * projects where only some modules have the dependency to which the signature file(s) apply.
  * @since 1.4
  */
  @Parameter(required = false, defaultValue = "true")
  private boolean failOnUnresolvableSignatures;
+
+ /**
+ * Output a warning in the log if a signature is missing. If this parameter is set to
+ * to false, then such signatures are not logged at all. This is useful in multi-module Maven
+ * projects where only some modules have the dependency to which the signature file(s) apply.
+ * @since 2.7
+ */
+ @Parameter(required = false, defaultValue = "true")
+ private boolean logMissingSignatures;
 
  /**
  * Fail the build if violations have been found. Defaults to {@code true}.
@@ -323,6 +332,7 @@ public void info(String msg) {
  if (failOnMissingClasses) options.add(FAIL_ON_MISSING_CLASSES);
  if (failOnViolation) options.add(FAIL_ON_VIOLATION);
  if (failOnUnresolvableSignatures) options.add(FAIL_ON_UNRESOLVABLE_SIGNATURES);
+ if (logMissingSignatures) options.add(LOG_MISSING_SIGNATURES);
  if (disableClassloadingCache) options.add(DISABLE_CLASSLOADING_CACHE);
  final Checker checker = new Checker(log, loader, options);