Ignore SpotBugs warning in ConfigMetadataHandler

config/metadata/processor/src/main/java/io/helidon/config/metadata/processor/ConfigMetadataHandler.java

@@ -19,6 +19,8 @@
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.io.StringWriter;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.LinkedHashSet;
@@ -50,7 +52,7 @@
 /*
  * This class is separated so javac correctly reports possible errors.
  */
-class  ConfigMetadataHandler {
+class ConfigMetadataHandler {
  /*
  * Configuration metadata file location.
  */
@@ -94,11 +96,8 @@ boolean process(RoundEnvironment roundEnv) {
  try {
  return doProcess(roundEnv);
  } catch (Exception e) {
- StringWriter sw = new StringWriter();
- PrintWriter pw = new PrintWriter(sw);
- e.printStackTrace(pw);
  messager.printMessage(Diagnostic.Kind.ERROR, "Failed to process config metadata annotation processor. "
- + sw);
+ + stackTraceAsString(e));
  return false;
  }
  }
@@ -213,7 +212,21 @@ private void storeMetadata() {
  }
  }
 
- private String toMessage(Exception e) {
- return e.getClass().getName() + ": " + e.getMessage();
+ @Retention(RetentionPolicy.CLASS)
+ private @interface SuppressFBWarnings {
+
+ String[] value() default {};
+
+ String justification() default "";
+ }
+
+ @SuppressFBWarnings(
+ value = "INFORMATION_EXPOSURE_THROUGH_AN_ERROR_MESSAGE",
+ justification = "During compile time this isn't a problem.")
+ private static String stackTraceAsString(Throwable e) {
+ StringWriter sw = new StringWriter();
+ PrintWriter pw = new PrintWriter(sw);
+ e.printStackTrace(pw);
+ return sw.toString();
  }
 }

config/metadata/processor/src/main/java/module-info.java

@@ -31,4 +31,4 @@
 
  provides javax.annotation.processing.Processor with io.helidon.config.metadata.processor.ConfigMetadataProcessor;
 
-}
+}