Hello,

I'm seeing the following NPE with HockeyappPlugin (called via Jenkins Pipelines)

16:57:53 java.lang.NullPointerException
16:57:53 at java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011)
16:57:53 at java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1006)
16:57:53 at org.apache.http.impl.client.BasicCredentialsProvider.setCredentials(BasicCredentialsProvider.java:61)
16:57:53 at hockeyapp.HockeyappRecorder.createPreconfiguredHttpClient(HockeyappRecorder.java:165)
16:57:53 at hockeyapp.HockeyappRecorder.performForApplication(HockeyappRecorder.java:252)
16:57:53 at hockeyapp.HockeyappRecorder.perform(HockeyappRecorder.java:186)
16:57:53 at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:69)
16:57:53 at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:59)
16:57:53 at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1$1.call(AbstractSynchronousNonBlockingStepExecution.java:52)
16:57:53 at hudson.security.ACL.impersonate(ACL.java:221)
16:57:53 at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1.run(AbstractSynchronousNonBlockingStepExecution.java:49)
16:57:53 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
16:57:53 at java.util.concurrent.FutureTask.run(FutureTask.java:266)
16:57:53 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
16:57:53 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
16:57:53 at java.lang.Thread.run(Thread.java:745)

I'm using an HTTP Proxy which does not require a username or password.

Thanks,
Simon