getting a NULL pointer exception when encrypting passwords in deployement.toml file

Description:

Getting the following exception when running cipher tool for the first time with the -Dconfigure parameter

[wso2student@ip-172-31-39-130 bin]$ ./ciphertool.sh -Dconfigure

Encrypting using Internal KeyStore.

{type: JKS, alias: wso2carbon, path: /opt/wso2/Desktop/c3/wso2am-3.0.0/repository/resources/security/wso2carbon.jks}
[Please Enter Internal KeyStore Password of Carbon Server : ]

Internal KeyStore of Carbon Server is initialized Successfully

Encryption is done Successfully

Exception in thread "main" java.lang.NullPointerException
at java.lang.String.concat(String.java:2027)
at org.wso2.ciphertool.CipherTool.updateDeploymentConfigurationWithEncryptedKeys(CipherTool.java:381)
at org.wso2.ciphertool.CipherTool.main(CipherTool.java:75)

Suggested Labels:
cipher-tool,toml

Steps to reproduce:

• Run the ciphertool.sh file in the APIM-3.0.0 with the -Dconfigre command.