'What are trustAnchors ? and How do I configure it?

I was recently assigned a java project. I am not very familiar with Java. I have been trying to build the projects but I am having the following error:

the trustAnchors parameter must be non-empty
    at java.base/java.security.cert.PKIXParameters.setTrustAnchors(PKIXParameters.java:200)
    at java.base/java.security.cert.PKIXParameters.<init>(PKIXParameters.java:120)
    at java.base/java.security.cert.PKIXBuilderParameters.<init>(PKIXBuilderParameters.java:104)
    at java.base/sun.security.validator.PKIXValidator.<init>(PKIXValidator.java:94)

I am confused on how to set the trustAnchors parameter. I am not sure if this is related but I can also only see the keystore certificate when I am an admin as seen in the picture linked below:

enter image description here

Thanks

javaeclipsemavencertificate


Solution 1:[1]

turns out that spring-boot was using a different version java. It was therefore not finding the cacert file.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 ParanoidAndroid

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