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Running custom jar in java action in Mendix

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I'd like to run some code from an apache commons jar, specifically the sha256Hex function form org.apache.commons.codec.digest.DigestUtils.  I have downloaded the appropriate jar file (commons-codec-1.10.jar) and put it in the userlib directory of my project. Next I set up a java action that contains the following code (see below). However, I still get an error in mendix runtime that it can't find the function in the jar-file:

java.lang.NoSuchMethodError: org.apache.commons.codec.digest.DigestUtils.sha256Hex

Update:

Problem was caused by the fact that I also had a commons-codec-1.3 from the CommunityCommons-project in my userlib directory. I removed that one and it works now, but I was wondering if the problem won't return if I update the CommunityCommons in my app. Anyone has any advise on that?

 

Java action:

import org.apache.commons.codec.digest.DigestUtils;
import com.mendix.systemwideinterfaces.core.IContext;
import com.mendix.webui.CustomJavaAction;

public class HashProper extends CustomJavaAction<java.lang.String>
{
	private java.lang.String Password;

	public HashProper(IContext context, java.lang.String Password)
	{
		super(context);
		this.Password = Password;
	}

	@Override
	public java.lang.String executeAction() throws Exception
	{
		// BEGIN USER CODE
		String sha256Hex =  DigestUtils.sha256Hex(this.Password);
		return sha256Hex;

		// END USER CODE
	}

	/**
	 * Returns a string representation of this action
	 */
	@Override
	public java.lang.String toString()
	{
		return "HashProper";
	}

	// BEGIN EXTRA CODE
	// END EXTRA CODE
}

 


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