Java Utililty Methods Diagnostic to Output

List of utility methods to do Diagnostic to Output

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Description

The list of methods to do Diagnostic to Output are organized into topic(s).

Method

StringdiagnosticToString(final Diagnostic diagnostic, boolean usingAnomsgtxt)
diagnostic To String 
String result = diagnostic.toString().trim();
if (result.contains("uses unchecked or unsafe operations.")
        || result.contains("Recompile with -Xlint:unchecked for details.")
        || result.endsWith(" declares unsafe vararg methods.")
        || result.contains("Recompile with -Xlint:varargs for details.")) {
    return null;
if (usingAnomsgtxt) {
...
StringerrorsToString(DiagnosticCollector diagnosticCollector)
errors To String 
StringBuilder builder = new StringBuilder();
for (javax.tools.Diagnostic<? extends JavaFileObject> diagnostic : diagnosticCollector.getDiagnostics()) {
    if (diagnostic.getKind() == javax.tools.Diagnostic.Kind.ERROR) {
        builder.append(diagnostic).append("\n");
return builder.toString();
List>filterSupportedSourceVersionWarnings( List> diagnostics)
Filter out warnings about SupportedSourceVersion . 
List<Diagnostic<? extends JavaFileObject>> r = new ArrayList<Diagnostic<? extends JavaFileObject>>();
for (Diagnostic<? extends JavaFileObject> d : diagnostics) {
    if (!d.getMessage(Locale.ENGLISH).contains("SupportedSourceVersion")) {
        r.add(d);
return r;
voidlog(ProcessingEnvironment processingEnvironment, Diagnostic.Kind kind, CharSequence message)
log 
processingEnvironment.getMessager().printMessage(kind, MESSAGER_HEADER + " " + message);
voidnote(final ProcessingEnvironment processingEnv, final String message, final Object... args)
Writes a message of type Kind#NOTE to the messager substituting arguments in the message using String#format(String,Object) . 
processingEnv.getMessager().printMessage(Kind.NOTE, PREFIX + String.format(message, args));
voidraiseCompilerError(String error)
Raises a fatal compiler error with the given message, halting execution. 
if (processingEnv == null) {
    return;
processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "Fatal error from optimiser: " + error
        + "\nAt:\n" + Arrays.toString(new Exception().getStackTrace()).replace(',', '\n'));