Could not map source location: The filename, directory name, or volume label syntax is incorrect

[blutorange]

There seems to be an issue with the file system on Windows:

[ERROR] Could not map source location
java.io.IOException: The filename, directory name, or volume label syntax is incorrect
    at java.io.WinNTFileSystem.canonicalize0 (Native Method)
    at java.io.WinNTFileSystem.canonicalize (WinNTFileSystem.java:428)
    at java.io.File.getCanonicalPath (File.java:618)
    at com.github.blutorange.maven.plugin.closurecompiler.common.FileHelper.relativizePath (FileHelper.java:19)
    at com.github.blutorange.maven.plugin.closurecompiler.common.FileSystemLocationMapping.map (FileSystemLocationMapping.java:37)
    at com.google.javascript.jscomp.SourceMap.fixupSourceLocation (SourceMap.java:221)
    at com.google.javascript.jscomp.SourceMap.addSourceFile (SourceMap.java:202)
    at com.google.javascript.jscomp.Compiler.addFilesToSourceMap (Compiler.java:3359)
    at com.google.javascript.jscomp.Compiler.parseSyntheticCode (Compiler.java:2071)
    at com.google.javascript.jscomp.Compiler.ensureLibraryInjected (Compiler.java:3256)
    at com.google.javascript.jscomp.Compiler.ensureLibraryInjected (Compiler.java:3271)
    at com.google.javascript.jscomp.Compiler.ensureLibraryInjected (Compiler.java:3271)
    at com.google.javascript.jscomp.InjectRuntimeLibraries.process (InjectRuntimeLibraries.java:40)
    at com.google.javascript.jscomp.Compiler.transpileAndDontCheck (Compiler.java:985)
    at com.google.javascript.jscomp.Compiler.performChecksAndTranspilation (Compiler.java:816)
    at com.google.javascript.jscomp.Compiler.lambda$stage1Passes$0 (Compiler.java:749)
    at com.google.javascript.jscomp.CompilerExecutor$2.call (CompilerExecutor.java:102)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:617)
    at java.lang.Thread.run (Thread.java:745)

Plugin configuration:

			<plugin>
				<groupId>com.github.blutorange</groupId>
				<artifactId>closure-compiler-maven-plugin</artifactId>
				<configuration>
					<charset>UTF-8</charset>
					<closureWarningLevels>
						<misplacedTypeAnnotation>OFF</misplacedTypeAnnotation>
						<es5Strict>OFF</es5Strict>
						<unknownDefines>OFF</unknownDefines>
						<nonStandardJsDocs>OFF</nonStandardJsDocs>
						<uselessCode>OFF</uselessCode>
					</closureWarningLevels>
					<closureCompilationLevel>${closure.compilation.level}</closureCompilationLevel>
					<closurePrettyPrint>true</closurePrettyPrint>
					<closureIncludeSourcesContent>true</closureIncludeSourcesContent>
					<closureSourceMapOutputType>inline</closureSourceMapOutputType>
					<closureCreateSourceMap>true</closureCreateSourceMap>
					<closureDebug>true</closureDebug>
					<closureLanguageIn>ECMASCRIPT_2018</closureLanguageIn>
					<closureLanguageOut>ECMASCRIPT5</closureLanguageOut>
					<baseSourceDir>${basedir}/src/main/es6</baseSourceDir>
					<baseTargetDir>${project.build.directory}/generated-resources/js</baseTargetDir>
				</configuration>
				<executions>
					<!-- External or third-party JavaScript libraries -->
					<execution>
						<id>minify-js</id>
						<phase>generate-resources</phase>
						<configuration>
							<skipMinify>false</skipMinify>
							<skipMerge>true</skipMerge>
							<sourceDir>externs</sourceDir>
							<targetDir>externs</targetDir>
							<outputFilename>#{filename}</outputFilename>
							<includes>
								<include>*.js</include>
							</includes>
						</configuration>
						<goals>
							<goal>minify</goal>
						</goals>
					</execution>
					<!-- Custom JavaScript for this portal, ES6 modules -->
					<execution>
						<id>minify-custom</id>
						<phase>generate-resources</phase>
						<configuration>
							<skipMinify>false</skipMinify>
							<skipMerge>false</skipMerge>
							<sourceDir>test</sourceDir>
							<targetDir>test</targetDir>
							<outputFilename>test.js</outputFilename>
							<includes>
								<include>**/*.js</include>
							</includes>
							<closureAssumeFunctionWrapper>true</closureAssumeFunctionWrapper>
							<closureOutputWrapper>(function(){%output%}).call(this);</closureOutputWrapper>
							<closureModuleResolution>NODE</closureModuleResolution>
							<closureDependencyMode>PRUNE</closureDependencyMode>
							<closureDependencyEntryPoints>
								<closureDependencyEntryPoint>file:index.js</closureDependencyEntryPoint>
							</closureDependencyEntryPoints>
						</configuration>
						<goals>
							<goal>minify</goal>
						</goals>
					</execution>
				</executions>
			</plugin>

and

	<profiles>
		<profile>
			<id>fc-dev</id>
			<build>
				<plugins>
					<plugin>
						<groupId>com.github.blutorange</groupId>
						<artifactId>closure-compiler-maven-plugin</artifactId>
						<executions>
							<execution>
								<id>minify-custom</id>
								<phase>generate-resources</phase>
								<configuration>
									<closureEmitUseStrict>false</closureEmitUseStrict>
									<closureForceInjectLibs>
										<closureForceInjectLib>base</closureForceInjectLib>
										<closureForceInjectLib>es6_runtime</closureForceInjectLib>
									</closureForceInjectLibs>
								</configuration>
							</execution>
						</executions>
					</plugin>
				</plugins>
			</build>
		</profile>
		<profile>
			<id>m2e</id>
			<activation>
				<property>
					<name>m2e.version</name>
				</property>
			</activation>
			<build>
				<plugins>
					<plugin>
						<groupId>com.github.blutorange</groupId>
						<artifactId>closure-compiler-maven-plugin</artifactId>
						<executions>
							<execution>
								<id>minify-custom</id>
								<phase>generate-resources</phase>
								<configuration>
									<closureEmitUseStrict>false</closureEmitUseStrict>
									<closureForceInjectLibs>
										<closureForceInjectLib>base</closureForceInjectLib>
										<closureForceInjectLib>es6_runtime</closureForceInjectLib>
									</closureForceInjectLibs>
								</configuration>
							</execution>
						</executions>
					</plugin>
				</plugins>
			</build>
		</profile>
	</profiles>

[blutorange]

In FileSystemLocationMapping, line 37, the given file is C:\Users\foobar\git\project\sub\src\main\es6\bar\ [synthetic:base] "