Beast process hung if credentials is not proper

[mauliksoneji]

Beast process gets hung when it's not able to find GOOGLE_CREDENTIALS.
Here is stack trace for the same.

java.io.FileNotFoundException: /<some-secret-file> (No such file or directory)
        at java.io.FileInputStream.open0(Native Method)
        at java.io.FileInputStream.open(FileInputStream.java:195)
        at java.io.FileInputStream.<init>(FileInputStream.java:138)
        at com.gojek.beast.factory.BeastFactory.getBigQueryInstance(BeastFactory.java:96)
        at com.gojek.beast.factory.BeastFactory.createBigQuerySink(BeastFactory.java:88)
        at com.gojek.beast.factory.BeastFactory.createBqWorkers(BeastFactory.java:81)
Exception in thread "main" java.lang.NullPointerException
        at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:877)
        at com.google.cloud.ServiceOptions$Builder.setCredentials(ServiceOptions.java:207)
        at com.gojek.beast.factory.BeastFactory.getBigQueryInstance(BeastFactory.java:103)
        at com.gojek.beast.factory.BeastFactory.createBigQuerySink(BeastFactory.java:88)
        at com.gojek.beast.factory.BeastFactory.createBqWorkers(BeastFactory.java:81)
        at com.gojek.beast.launch.Main.main(Main.java:27)

Expected outcome:
Beast process should restart if config is not proper.