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Springboot ssl truststore properties not working

I am running a spring boot application which is a webservice client and sends requests to a webservice on a Jboss.
A certificate was added on the jboss and since then i started having exception:
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)
So i searched on google on how to communicate with a cert based Jboss and came up with the idea that I needed to create a trust store from the jboss cert and then use that in my application.yaml
server:
port: 7887
address: 127.0.0.1
ssl:
# enabled: true
trust-store: file:config/myapp.truststore
trust-store-password: myappdomain
These didnt work. So i went with more manual and on the grounds approach
I just did the below and this worked. ( for any one having the same issue this works;I added the truststore in the config directory and the config directory was at the same level as the myapp.jar)
java -Djavax.net.ssl.trustStore=config/myapp.truststore -jar myapp.jar
My question: why did the application.yaml configs didnt work. was i missing something.
the above approach works without a password ( may be because the password is the same on keystore and cert in jboss as the trust store password).
Is there any security issue or any kind of issue with the approach that worked. and for future how can i make the yaml configs work.

It is correct as you wrote it, you need to use javax.net.ssl.trustStore and his pair prop javax.net.ssl.trustStorePassword to check the validity of the remote service you are calling.
I understand the 3 options the following way:
server.ssl.key-store => use to authenticate yourself (the server) to other clients calling you
javax.net.ssl.trustStore => use to authenticate servers you are calling as a client from your Spring Boot app.
server.ssl.trust-store => use only if you are using 2-way ssl with Spring, where you authenticate yourself as a client towards other SSL secured server. Probably you will not use this so often when implementing SSL (one way ssl). So stick with the first two and you are good.

Communication between Java apps on 2 different servers(app1 in jboss and app2-tomcat) with https SSL configuration

Earlier when I kept both apps(app1 & app2) in the same (Jboss)server, I can call[communicate] the api's available in app1 from app2. [Jboss ssl configured with certificate]
Now My issue is, I moved only my app2 into tomcat server[app2],without changing any code and tried to connect api's of app1. It is throwing the clientProtocol Exception.
I came to know the issue with ssl certificate, because app1 is ssl configured.
Is there any place I have to configure my tomcat server to trust the app1 with the SSL jboss certifcate or in java program I have to add the trustmanager SSL socket code.
Please let me know the possible solution I have been stucked .

You need to configure the tomcat environment to know that exists a certificate to use.
This is done with -Djavax.net.ssl.trustStore=mykeystore or setting it in JAVA_OPTS.
For Linux this is done as follow:
export JAVA_OPTS=-Djavax.net.ssl.trustStore=mykeystore
before calling ./startup.sh

java web service client trying to access web service through SSL - TrustManagerFactoryImpl is not initialized

I'm a web service client and I'm connecting to the web service through SSL.
It's a 2-way SSL and the producer has shared the certificate. I did run the InstallCert.java, got the alias and created a Keystore.
I'm using weblogic application server and I have placed my Keystore in it.
Now when I run it, I'm getting an error,
Caused by: java.lang.RuntimeException: java.lang.IllegalStateException:
TrustManagerFactoryImpl is not initialized
Before this I could see that it is trying to load the identity certificate and the private key. But as per standards the producer isn't willing to share the private key with us.
Any suggestion on this would be of great help to me. Thanks.

I resolved it.
I added my .cer file to cacerts which is referred by the weblogic server (Using keytool import). In the keystores section, I kept the default option (Demo identity and Demo trust). In the SSL section, I went to advanced, click on the checkbox ("Use JSSE SSL").
It worked.

I had this issue connecting to a MySQL database that requires SSL to connect.
It turns out, for me, the driver version needed to be updated in order to properly-handle the trust store configuration in the JDBC URL.

How to create Tomcat keystore file using JAVA

How to create Tomcat keystore file using JAVA
I am creating a http connection to SSL enabled tomcat server but it generates error SSL Handshake failed
So I want to create a keystore at runtime as i will be contacting multiple SSL enabled servers (Don't know this approach will be successfull or not)
Please suggest a way to how to create a tomcat keystore file using java program or any other way to bypass SSL handshake

Where are you getting sslhandshake error exactly? While client wants to connect to tomcat server or while tomcat server is trying to connect to other servers for some purpose? And can you paste the exception trace?
In either case, it does not make any sense to create keystore programatically in a server but one can inspect java's keytool source code to play on keystores.
http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/7-b147/sun/security/tools/KeyTool.java/

Look at the How-To guide SSL configuration on Tomcat's official site
http://tomcat.apache.org/tomcat-4.1-doc/ssl-howto.html

Is it possible to merge java\jre\security\lib\cacerts file

In my project,I have integrated Spring Security with CAS server authentication. Now my project is an http application where as the CAS server is an Https application. I was getting following exception after Spring Security and CAS integration: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
In order to solve this error ,I replaced CAS server usr\java\jre\lib\security\cacerts file with my local usr\java\jre\lib\security\cacerts file. After this step the error was gone.
Now I want to deploy my application to some other server. In this new server some other applications are also deployed which may be using different CAS authentication. I cannot directly replace my CAS server cacerts file with this new server cacerts file as in that other application deployed may fail.Right? Can anyone suggest what should I do so that cacerts can be merged,or what should be done? i got to know a command called as keytool but unable to understand how it could be used to merge cacerts file. I dont know how to get my CAS server .cer file,I got to know this could be used in merging,please suggest solution

There is a missunderstanding here.
cacerts is Java's default truststore containing all the trusted certificates for known CA's (Verisign etc). So java can by default trust these certificates same way that your browser does.
This truststore should be used when you want to connect to servers that are signed by these CAs.
In all other cases you are expected to use your own custom truststore so that you can trust specific servers.Actually this is the norm.
So what you should be doing is to load in your code your own truststore and provide that to Java's JSSE to use for authentication during handshake