Fix Windows build errors caused by file encoding mismatch

gradle.properties

@@ -9,7 +9,8 @@
 
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
-org.gradle.jvmargs=-Xmx1536m
+# Explicit encoding required for sources with special chars to build on Windows
+org.gradle.jvmargs=-Xmx1536m -Dfile.encoding=UTF-8
 
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit

library/build.gradle

@@ -56,6 +56,7 @@ task sourcesJar(type: Jar) {
 
 task javadoc(type: Javadoc) {
  failOnError false
+ options.encoding 'UTF-8'
  source = android.sourceSets.main.java.sourceFiles
  classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
  classpath += configurations.compile