[refactor] remove commons-lang3 dependency from last extensions

The last two were the mail module and the LDAP security realm.

Author: line-o

extensions/modules/mail/pom.xml

@@ -89,11 +89,6 @@
             <scope>runtime</scope>
         </dependency>
 
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-lang3</artifactId>
-        </dependency>
-
         <dependency>
             <groupId>commons-codec</groupId>
             <artifactId>commons-codec</artifactId>

extensions/modules/mail/src/main/java/org/exist/xquery/modules/mail/MessageListFunctions.java

@@ -47,7 +47,6 @@
 import jakarta.mail.search.SearchTerm;
 import jakarta.mail.search.SentDateTerm;
 import jakarta.mail.search.SubjectTerm;
-import org.apache.commons.lang3.StringUtils;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.exist.dom.QName;

extensions/security/ldap/pom.xml

@@ -57,11 +57,6 @@
             <artifactId>log4j-api</artifactId>
         </dependency>
 
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-lang3</artifactId>
-        </dependency>
-
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>

extensions/security/ldap/src/main/java/org/exist/security/realm/ldap/LdapContextFactory.java

@@ -29,7 +29,6 @@
 import javax.naming.ldap.InitialLdapContext;
 import javax.naming.ldap.LdapContext;
 
-import org.apache.commons.lang3.StringUtils;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.exist.config.Configurable;
@@ -101,7 +100,7 @@ public LdapContext getLdapContext(String username, final String password, final
             throw new IllegalStateException("An LDAP URL must be specified of the form ldap://<hostname>:<port>");
         }
 
-        if (StringUtils.isBlank(password)) {
+        if (password == null || password.isBlank()) {
             throw new IllegalStateException("Password for LDAP authentication may not be empty.");
         }