JDT warnings are described as if they are ignored compilation errors

[niloc132]

GWT version: 2.12.1
Browser (with version): any
Operating System: any

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Description

Compilation warnings without enabling -strict/-failOnError are not logged, but instead a misleading message is printed:

[INFO]    Ignored 1 unit with compilation errors in first pass.
[INFO] Compile with -strict or with -logLevel set to DEBUG or WARN to see all errors.

As the source indicates this is not a compilation error, and adding that flag or changing log level will not print additional errors, only warnings:

gwt/dev/core/src/com/google/gwt/dev/javac/CompilationStateBuilder.java

Lines 366 to 389 in c2229e7

	// Report warnings.
	Type logLevelForWarnings = suppressErrors ? TreeLogger.DEBUG : TreeLogger.WARN;
	int warningCount =
	CompilationProblemReporter.logWarnings(logger, logLevelForWarnings, resultUnits);
	if (warningCount > 0 && !logger.isLoggable(logLevelForWarnings)) {
	logger.log(TreeLogger.INFO, "Ignored " + warningCount + " unit"
	+ (warningCount > 1 ? "s" : "") + " with compilation errors in first pass.\n"
	+ "Compile with -strict or with -logLevel set to DEBUG or WARN to see all errors.");
	}
	// Index errors so that error chains can be reported.
	CompilationProblemReporter.indexErrors(compilerContext.getCompilationErrorsIndex(),
	resultUnits);
	// Report error chains and hints.
	Type logLevelForErrors = suppressErrors ? TreeLogger.TRACE : TreeLogger.ERROR;
	int errorCount = CompilationProblemReporter.logErrorTrace(logger, logLevelForErrors,
	compilerContext, resultUnits, false);
	if (errorCount > 0 && !logger.isLoggable(logLevelForErrors)
	&& logger.isLoggable(TreeLogger.INFO)) {
	logger.log(TreeLogger.INFO, "Ignored " + errorCount + " unit" + (errorCount > 1 ? "s" : "")
	+ " with compilation errors in first pass.\n"
	+ "Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.");
	}

This message should be made more clear.

Links to further discussions

https://groups.google.com/g/google-web-toolkit/c/Uf8Rj_5pm2E