Java Utililty Methods Properties

Properties convertBundleToProperties(ResourceBundle rb)
Method to convert a ResourceBundle to a Properties object.

Properties props = new Properties();
for (Enumeration<String> keys = rb.getKeys(); keys.hasMoreElements();) {
 String key = keys.nextElement();
 props.put(key, rb.getString(key));
return props;

Properties convertResourceBundleToProperties(ResourceBundle resource)
convert Resource Bundle To Properties

Properties properties = null;
if (resource != null) {
 properties = new Properties();
 Enumeration<String> keys = resource.getKeys();
 while (keys.hasMoreElements()) {
 String key = keys.nextElement();
 properties.put(key, resource.getString(key));
return properties;

String createScriptBodyFromScriptSet(Properties scriptSet)
create Script Body From Script Set

StringBuffer sb = new StringBuffer();
for (Enumeration scriptKeys = scriptSet.keys(); scriptKeys.hasMoreElements();) {
 String scriptKey = (String) scriptKeys.nextElement();
 sb.append(scriptSet.get(scriptKey));
return sb.toString();

Set differentKeys(Properties p1, Properties p2)
Compare two Properties, return the set of keys whose values differ, including keys that don't exist in one or the other Properties).

if (p1 == null) {
 if (p2 == null) {
 return null;
 } else {
 return p2.keySet();
} else if (p2 == null) {
 return p1.keySet();
...

boolean equalProps(Properties p1, Properties p2)
Compare two Properties for equality (same set of properties with same (.equals) values.

if (p1 == null || p2 == null || p1.size() != p2.size()) {
 return false;
Enumeration en = p1.keys();
while (en.hasMoreElements()) {
 String k1 = (String) en.nextElement();
 if (!isKeySame(k1, p1, p2)) {
 return false;
...

List extractFromPropertiesAsList(String prefix, Properties properties)
Extract from given properties a list of string values.

TreeMap<Integer, String> orderedMap = new TreeMap<>();
List<String> rest = new ArrayList<>();
Enumeration names = properties.propertyNames();
String prefixP = prefix + ".";
while (names.hasMoreElements()) {
 String key = (String) names.nextElement();
 if (propMatchesPrefix(prefixP, key)) {
 String index = key.substring(prefixP.length());
...

Map extractFromPropertiesAsMap(String prefix, Properties properties)
Extract part of given properties as a map.

Map<String, String> ret = new HashMap<>();
Enumeration names = properties.propertyNames();
String prefixP = prefix + ".";
while (names.hasMoreElements()) {
 String propName = (String) names.nextElement();
 if (propMatchesPrefix(prefixP, propName)) {
 String mapKey = propName.substring(prefixP.length());
 ret.put(mapKey, properties.getProperty(propName));
...

boolean isKeySame(String key, Properties p1, Properties p2)
is Key Same

Object o1 = p1.getProperty(key);
Object o2 = p2.getProperty(key, noProp);
return (o1 == o2) ||
 !((o2 == noProp || o1 == null || !o1.equals(o2)));

boolean isSupportedJVM(Map jdkProperties)
is Supported JVM

String jdkVersionString = (String) jdkProperties.get("java.version"); 
String vmNameString = (String) jdkProperties.get("java.vm.name"); 
if (jdkVersionString == null || vmNameString == null) { 
 return false;
if (isSupportedJDK(jdkVersionString)) {
 return true;
return isSupportedJDK(vmNameString);

Map maskApplicationEnvProperties(Map environmentVariables, Set variablesToMask)
mask Application Env Properties

HashMap<String, String> masked = new HashMap<>();
for (String variableKey : environmentVariables.keySet()) {
 if (variablesToMask.contains(variableKey)) {
 masked.put(variableKey, maskEnvironmentVariable(environmentVariables.get(variableKey)));
 } else {
 masked.put(variableKey, environmentVariables.get(variableKey));
return masked;