AEM Junit java.lang.NoSuchMethodError: 'boolean org.apache.commons.lang3.StringUtils.isNoneBlank(java.lang.CharSequence[])'

[archana_r]

Hi All, 

I am getting this error for Stringutils method while debugging junit. Am i missing anything?

ava.lang.NoSuchMethodError: 'boolean org.apache.commons.lang3.StringUtils.isNoneBlank(java.lang.CharSequence[])'

[Imran__Khan]

@archana_r This line is written as part of which file, test class or the class for which we are writing junit.

Here's your problem: commons-lang-2.6.jar doesn't contain the org.apache.commons.lang3 package, since that's part of version 3, and commons-lang3-3.1-sources.jar contains the source code, not the byte code.

You need to include commons-lang3-3.1.jar instead.

Refer below link for more info
https://stackoverflow.com/questions/28504174/noclassdeffounderror-org-apache-commons-lang3-stringuti...s

[archana_r]

I am invoking an util class from my test class. The util class has this

StringUtils.isNoneBlank(path)method.

Is there anything, we need add in Junit test class while invkoing?

[archana_r]

@Imran__Khan  Interestingly changing ito 

StringUtils.isNotEmpty(path)

has not thrown any error. This issue is only seen while executing junit test cases.  

[arunpatidar]

StringUtils.isNotEmpty(path) will fail for null, instead use StringUtils.isNotBlank(path)

[arunpatidar · Accepted solution]

As mentioned by @Imran__Khan , you might not be using the correct java api.

you can use the StringUtils.isNotBlank method, which is available with all the apis

https://commons.apache.org/proper/commons-lang/apidocs/org/apache/commons/lang3/StringUtils.html#isN...