Is the cacerts file missing in ubuntu 15.10 and openjdk-8-jdk?

Question

I just installed Ubuntu 15.10 and their openjdk-8-jdk (by apt-get).

Now I am missing the cacerts file.

There is a link at the usual location:

ls -l /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security/cacerts
lrwxrwxrwx 1 root root 27 Oct 22 01:47 /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security/cacerts -> /etc/ssl/certs/java/cacerts

but nothing at /etc/ssl/certs/java/cacerts:

stat /etc/ssl/certs/java/cacerts
stat: cannot stat ‘/etc/ssl/certs/java/cacerts’: No such file or directory

Answer 1

This is due to a bug already reported here: Ubuntu bug ticket

The ticket above links another similar issue, which provides a workaround:

$ sudo dpkg --purge --force-depends ca-certificates-java
$ sudo apt-get install ca-certificates-java

Answer 2

Just to add an error here that Gergely answer solved, if you trying to call external apis with ssl and got this error:

java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1946)
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1903)

This solved

$ sudo dpkg --purge --force-depends ca-certificates-java
$ sudo apt-get install ca-certificates-java