in compilers/eclipse/src/main/java/org/apache/commons/jci2/compiler/eclipse/EclipseJavaCompilerSettings.java [70:80]
Map<String, String> toNativeSettings() {
final Map<String, String> map = new HashMap<>(defaultEclipseSettings);
map.put(CompilerOptions.OPTION_SuppressWarnings, isWarnings()?CompilerOptions.GENERATE:CompilerOptions.DO_NOT_GENERATE);
map.put(CompilerOptions.OPTION_ReportDeprecation, isDeprecations()?CompilerOptions.GENERATE:CompilerOptions.DO_NOT_GENERATE);
map.put(CompilerOptions.OPTION_TargetPlatform, toNativeVersion(getTargetVersion()));
map.put(CompilerOptions.OPTION_Source, toNativeVersion(getSourceVersion()));
map.put(CompilerOptions.OPTION_Encoding, getSourceEncoding());
return map;
}