java.lang does not contain a class called StringUtils. Several third-party libs do, such as Apache Commons Lang or the Spring framework. Make sure you have the relevant jar in your project classpath and import the correct class.
Apache Commons
commons.apache.org › proper › commons-lang › apidocs › org › apache › commons › lang3 › StringUtils.html
StringUtils (Apache Commons Lang 3.20.0 API)
The StringUtils class defines certain words related to String handling.
Maven Repository
mvnrepository.com › artifact › org.apache.commons › commons-lang3
Maven Repository: org.apache.commons » commons-lang3
November 12, 2025 - Apache Commons Lang, a package of Java utility classes for the classes that are in java.lang's hierarchy, or are considered to be so standard as to justify existence in java.lang.
Videos
01:00
String UpperCase from Apache Commons StringUtils handles NULL #shorts ...
40:46
StringUtils Methods In Java - YouTube
13:33
Handling String in Java | Apache Commons Lang | StringUtils ...
02:46
How to solve "the import org.apache .common.lang3 can not be ...
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Apache commons lang 3 String Util class features - YouTube
Apache Commons - Beyond StringUtils - Benedikt Ritter ...
Baeldung
baeldung.com › home › java › java string › string processing with apache commons lang 3
String Processing with Apache Commons Lang 3 | Baeldung
January 8, 2024 - <dependency> <groupId>org.apac... find the latest version of this library here. The StringUtils class provides methods for null-safe operations on strings....
Reddit
reddit.com › r/java › look how they massacred my boy (apache commons lang)
r/java on Reddit: Look how they massacred my boy (Apache Commons Lang)
August 21, 2025 -
Seriously, what madness drove the commons lang contributors to deprecate StringUtils.equals()?
I'm gonna rant for a bit here. It's been a long day.
I spend all morning in an incident call, finally get time to do some coding in the afternoon.
I make progress on a bug fix, clean up some dead code like a good boy scout, and I’m feeling like I actually accomplished something today.
Oh, this service is getting flagged for CVE-2025-48924? Let me take care of that.
And then, confusion. Anger.
Deprecated method? StringUtils.equals()? That can't be.
Sure as shit, they deprecated it. Let's see what has been replaced with.
Strings.CS.equals()? Is that character sequence? No, it's case sensitive. Fucking hell. I harp on juniors for their silly acronyms. Did not expect to see them in a library like this. Just unnecessary. If Java developers had a problem with verbosity, well, they wouldn't be Java developers.
I'll admit I've been an open-source leech, contributing nothing to the community, but this one has lit a fire in me.
If this issue isn't resolved, are there any volunteers to help with a fork? I feel like common-sense-lang3 would be an appropriate name for an alternative.
https://issues.apache.org/jira/projects/LANG/issues/LANG-1777?filter=allopenissues
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Please mark this NSFW, I wasn’t ready for this
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I despise anything that obfuscates the meaning of code from the reader, as too many tenured "geniuses" are actually using bad code to limit the productivity of their coworkers. 'hist' for history/histogram, 'perf' for performance, etc. I used an electronic typewriter once, things are better now and we 'totes' don't need 'abbrevs'. Seems like it would have been better to leave it as Strings.equals() and add a new method for Strings.equalsIgnoreCase() - because the latter would come up in your autocomplete immediately after the former and it would become immediately obvious which method does which.
Apache Commons
commons.apache.org › proper › commons-codec › apidocs › org › apache › commons › codec › binary › StringUtils.html
StringUtils (Apache Commons Codec 1.21.0 API)
org.apache.commons.codec.binary.StringUtils · public class StringUtils extends Object · Converts String to and from bytes using the encodings required by the Java specification. These encodings are specified in standard Charset. This class is immutable and thread-safe.
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java.lang does not contain a class called StringUtils. Several third-party libs do, such as Apache Commons Lang or the Spring framework. Make sure you have the relevant jar in your project classpath and import the correct class.
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StringUtils is an Apache Commons project. You need to download and add the library to your classpath.
To use:
import org.apache.commons.lang3.StringUtils;
GeeksforGeeks
geeksforgeeks.org › java › string-handling-with-apache-commons-stringutils-class-in-java
String Handling with Apache Commons' StringUtils Class in Java - GeeksforGeeks
April 28, 2025 - The Apache Commons Lang library is a popular third-party library for working with Strings in Java, and the StringUtils class is a key part of this library.
GitHub
github.com › apache › commons-lang › blob › master › src › main › java › org › apache › commons › lang3 › StringUtils.java
commons-lang/src/main/java/org/apache/commons/lang3/StringUtils.java at master · apache/commons-lang
* StringUtils.getLevenshteinDistance("hello", "hallo") = 1 ... * @since 3.0 Changed signature from getLevenshteinDistance(String, String) to getLevenshteinDistance(CharSequence, CharSequence) * @deprecated As of 3.6, use Apache Commons Text
Author apache
DZone
dzone.com › data engineering › data › apache commons lang stringutils
Apache Commons Lang StringUtils
May 5, 2012 - This is where StringUtils.equals comes in handy, it's null safe. It doesn't matter what you pass it, it won't NullPointer on you!
Apache Commons
commons.apache.org › proper › commons-exec › apidocs › org › apache › commons › exec › util › StringUtils.html
StringUtils (Apache Commons Exec 1.6.0 API)
org.apache.commons.exec.util.StringUtils · public class StringUtils extends Object · Supplement of commons-lang, the stringSubstitution() was in a simpler implementation available in an older commons-lang implementation. This class is not part of the public API and could change without warning.
Oracle
docs.oracle.com › cd › B14099_19 › web.1012 › q20234 › org › apache › soap › util › StringUtils.html
StringUtils (Apache SOAP API Reference)
java.lang.Object | +--org.apache.soap.util.StringUtils
Medium
medium.com › @nagarjun_nagesh › java-apache-commons-stringutils-33c6d779dabe
[Java] Apache Commons StringUtils | by Nagarjun (Arjun) Nagesh | Medium
July 10, 2024 - Java, a language known for its robustness and extensive library support, is further enhanced by third-party libraries that simplify common tasks. One such library is Apache Commons Lang, specifically the StringUtils class, which provides a plethora of utilities for string manipulation.
Apache
tika.apache.org › 2.3.0 › api › org › apache › tika › utils › StringUtils.html
StringUtils (Apache Tika 2.3.0 API)
org.apache.tika.utils.StringUtils · public class StringUtils extends Object · clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait · public static final String EMPTY · The empty String "". Since: 2.0 · See Also: Constant Field Values ·
Apache Commons
commons.apache.org › lang › article3_0.html
What's new in Commons Lang 3.0?
July 4, 2025 - Commons Lang 3.0 is out, and the obvious question is: "So what? What's changed?" · Lang is now Java 5 based. We've generified the API, moved certain APIs to support varargs and thrown out any features that are now supported by Java itself. We've removed the deprecated parts of the API and ...
Baeldung
baeldung.com › home › java › java string › an introduction to apache commons lang 3
An Introduction to Apache Commons Lang 3 | Baeldung
January 8, 2024 - As its name suggests, StringUtils allows us to perform a bunch of null-safe strings operations that complement/extend the ones that java.lang.String provides out of the box.
Java Tips
javatips.net › api › org.apache.commons.lang3.stringutils
Java Examples for org.apache.commons.lang3.StringUtils
public static AllowableValues create(String values) { AllowableValues allowableValues = null; if (StringUtils.isNotEmpty(values)) { allowableValues = AllowableRangeValues.create(values); if (allowableValues == null) { allowableValues = AllowableEnumValues.create(values); } } return allowableValues; } ... public static String camelCaseToUnderscore(final String camelCase) { Preconditions.checkNotNull(camelCase, "camelCase"); final String[] camelCaseParts = org.apache.commons.lang.StringUtils.splitByCharacterTypeCamelCase(camelCase); for (int i = 0; i < camelCaseParts.length; i++) { camelCaseParts[i] = camelCaseParts[i].toLowerCase(Locale.ENGLISH); } return org.apache.commons.lang.StringUtils.join(camelCaseParts, "_"); }
JavaBeat
javabeat.net › home › how to use stringutils class in java
How to Use StringUtils Class in Java
March 8, 2024 - StringUtils is a utility class of the Apache Commons Lang library that helps us manipulate/process the strings efficiently. It offers a variety of advanced string manipulation methods that don’t exist in the standard String class.
Apache Commons
commons.apache.org › proper › commons-codec › archives › 1.11 › apidocs › org › apache › commons › codec › binary › StringUtils.html
StringUtils (Apache Commons Codec 1.11 API)
org.apache.commons.codec.binary.StringUtils · public class StringUtils extends Object · Converts String to and from bytes using the encodings required by the Java specification. These encodings are specified in Standard charsets. This class is immutable and thread-safe.
Eclipse Che
eclipsesource.com › blogs › 2013 › 11 › 06 › get-rid-of-your-stringutils
Get rid of your StringUtils!
June 11, 2013 - If you’re a Spring addict, the Spring framework will be part of your project anyway. Then you can as well use org.springframework.util.StringUtils which offers 40+ static methods for String parsing and manipulation.
Amir Boroumand
steelcityamir.com › blog › do-you-still-need-apache-commons-stringutils-with-modern-java
Do You Still Need Apache Commons StringUtils in Modern Java? · Amir Boroumand | Software engineer based in Pittsburgh, PA
May 22, 2024 - For years, Java developers relied on Apache Commons Lang’s StringUtils to handle common string operations that the Java standard library lacked.