replaced deprecated StringUtils methods with suggested ones from Strings.CS class

Author: StefanSpieker

plugin/src/main/java/io/jenkins/plugins/casc/ConfigurationAsCode.java

@@ -1,7 +1,6 @@
 package io.jenkins.plugins.casc;
 
 import static io.jenkins.plugins.casc.SchemaGeneration.writeJSONSchema;
-import static java.lang.String.format;
 import static java.util.stream.Collectors.toList;
 import static org.yaml.snakeyaml.DumperOptions.FlowStyle.BLOCK;
 import static org.yaml.snakeyaml.DumperOptions.ScalarStyle.DOUBLE_QUOTED;

plugin/src/main/java/io/jenkins/plugins/casc/core/HudsonPrivateSecurityRealmConfigurator.java

@@ -17,6 +17,7 @@
 import java.util.Set;
 import java.util.stream.Collectors;
 import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.Strings;
 import org.kohsuke.accmod.Restricted;
 import org.kohsuke.accmod.restrictions.NoExternalUse;
 import org.kohsuke.stapler.DataBoundConstructor;
@@ -96,7 +97,7 @@ private static void setter(HudsonPrivateSecurityRealm target, Collection<UserWit
     private static User createAccount(HudsonPrivateSecurityRealm target, UserWithPassword user) throws IOException {
         User updatedUser;
         if (StringUtils.isNotBlank(user.password)) {
-            if (StringUtils.startsWith(user.password, HASHED_PASSWORD_PREFIX)) {
+            if (Strings.CS.startsWith(user.password, HASHED_PASSWORD_PREFIX)) {
                 updatedUser = target.createAccountWithHashedPassword(user.id, user.password);
             } else {
                 updatedUser = target.createAccount(user.id, user.password);

plugin/src/main/java/io/jenkins/plugins/casc/impl/configurators/GlobalConfigurationCategoryConfigurator.java

@@ -23,7 +23,7 @@
 import java.util.stream.Collectors;
 import jenkins.model.GlobalConfigurationCategory;
 import jenkins.model.Jenkins;
-import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.Strings;
 import org.jenkinsci.Symbol;
 import org.kohsuke.accmod.Restricted;
 import org.kohsuke.accmod.restrictions.NoExternalUse;
@@ -59,9 +59,9 @@ public List<String> getNames() {
         }
 
         String name = c.getSimpleName();
-        name = StringUtils.remove(name, "Global");
-        name = StringUtils.remove(name, "Configuration");
-        name = StringUtils.remove(name, "Category");
+        name = Strings.CS.remove(name, "Global");
+        name = Strings.CS.remove(name, "Configuration");
+        name = Strings.CS.remove(name, "Category");
         return singletonList(name.toLowerCase());
     }