자바에서 아래와 같이 ssl 관련 오류가 발생할 경우
첨부된 파일을 받아서 복사해준다. $JAVA_HOME/jre/lib/security

javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty

cacerts

openjdk1.8.0_u152-b04

Build OS : Ubuntu 11.04
압축해제 방법 : cat openjdk1.8.0_u152-b04.tar.bz2* | tar xvjf -
http://hg.openjdk.java.net/jdk8u/jdk8u

openjdk1.8.0_u152-b04.tar.bz2aa

openjdk1.8.0_u152-b04.tar.bz2aa

openjdk1.8.0_u152-b04.tar.bz2ab

openjdk1.8.0_u152-b04.tar.bz2ac

openjdk1.8.0_u152-b04.tar.bz2ad

openjdk1.8.0_u152-b04.tar.bz2ae

openjdk1.8.0_u152-b04.tar.bz2af

openjdk1.8.0_u152-b04.tar.bz2ag

openjdk1.8.0_u131-b11

Build OS : Ubuntu 11.04

압축해제 방법 : cat openjdk1.8.0_u131-b11.tar.bz2* | tar xvjf - 

http://hg.openjdk.java.net/jdk8u/jdk8u

openjdk1.8.0_u131-b11.tar.bz2aa

openjdk1.8.0_u131-b11.tar.bz2ab

openjdk1.8.0_u131-b11.tar.bz2ac

openjdk1.8.0_u131-b11.tar.bz2ad

openjdk1.8.0_u131-b11.tar.bz2ae

openjdk1.8.0_u131-b11.tar.bz2af

openjdk1.8.0_u131-b11.tar.bz2ag