-Werror flag not recognized by groovy-eclipse-compiler

[moormanm]

When using the following maven configuration:

		<plugin>
			<artifactId>maven-compiler-plugin</artifactId>
			<version>3.3</version>
			<configuration>
				<compilerId>groovy-eclipse-compiler</compilerId>
				<fork>false</fork>
				<source>1.8</source>
				<target>1.8</target>
				<showWarnings>true</showWarnings>
				<compilerArgs>
					<arg>-Xlint:all</arg>
					<arg>-Werror</arg>
				</compilerArgs>
			</configuration>
			<dependencies>
				<dependency>
					<groupId>org.codehaus.groovy</groupId>
					<artifactId>groovy-eclipse-compiler</artifactId>
					<version>2.9.2-01</version>
				</dependency>
				<dependency>
					<groupId>org.codehaus.groovy</groupId>
					<artifactId>groovy-eclipse-batch</artifactId>
					<version>2.4.3-01</version>
				</dependency>
			</dependencies>
		</plugin>

Results in:

[INFO] --- maven-compiler-plugin:3.3:compile (default-compile) @ DocumentMapper ---
[INFO] Changes detected - recompiling the module!
[INFO] Using Groovy-Eclipse compiler to compile both Java and Groovy files
[INFO] Unrecognized option : -Werror

[INFO] Found 0 errors and 0 warnings.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.559s

[eric-milles]

I think you need to use <arg>-F-Werror</arg>

http://groovy-lang.org/groovyc.html

[moormanm]

Thanks for the response Eric.

I tried using -F-Werror in the pom, but it seems that option is not recognized:

<plugin> <artifactId>maven-compiler-plugin</artifactId> <configuration> <compilerId>groovy-eclipse-compiler</compilerId> <fork>false</fork> <source>1.8</source> <target>1.8</target> <showWarnings>true</showWarnings> <compilerArgs> <arg>-Xlint:all</arg> <arg>-F-Werror</arg> </compilerArgs> </configuration> <dependencies> <dependency> <groupId>org.codehaus.groovy</groupId> <artifactId>groovy-eclipse-compiler</artifactId> <version>2.9.2-01</version> </dependency> <dependency> <groupId>org.codehaus.groovy</groupId> <artifactId>groovy-eclipse-batch</artifactId> <version>2.4.3-01</version> </dependency> </dependencies> </plugin>

[INFO] Changes detected - recompiling the module!
[INFO] Using Groovy-Eclipse compiler to compile both Java and Groovy files
[INFO] Unrecognized option : -F-Werror

[moormanm]

I looked at the source code GroovyEclipseCompiler and saw some hints about some supported flags. This one seems to work, but it requires that I specifically call out the warnings I'm interested in seeing.

-err:+deprecation,fallthrough,finally,over-ann,raw,unchecked,suppress,unusedImport,unusedLocal