hg: jdk/sandbox: Add onError handler + various cleanup

[erik.gahlin at oracle.com]

Changeset: aa7b1ea52413
Author:    egahlin
Date:      2019-08-30 20:39 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/aa7b1ea52413

Add onError handler + various cleanup

! src/jdk.jfr/share/classes/jdk/jfr/consumer/AbstractEventStream.java
! src/jdk.jfr/share/classes/jdk/jfr/consumer/EventDirectoryStream.java
! src/jdk.jfr/share/classes/jdk/jfr/consumer/EventFileStream.java
! src/jdk.jfr/share/classes/jdk/jfr/consumer/EventStream.java
! src/jdk.jfr/share/classes/jdk/jfr/consumer/RecordingStream.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/consumer/ChunkHeader.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/consumer/RecordingInternals.java