in maven-wrapper/src/main/java/org/apache/maven/wrapper/cli/AbstractPropertiesCommandLineConverter.java [44:55]
public Map<String, String> convert(ParsedCommandLine options, Map<String, String> properties)
throws CommandLineArgumentException {
for (String keyValueExpression : options.option(getPropertyOption()).getValues()) {
int pos = keyValueExpression.indexOf("=");
if (pos < 0) {
properties.put(keyValueExpression, "");
} else {
properties.put(keyValueExpression.substring(0, pos), keyValueExpression.substring(pos + 1));
}
}
return properties;
}