For example, the following should not cause Run.onLoad itself to fail:
java.lang.NullPointerException
	at org.jenkinsci.plugins.workflow.steps.input.InputAction.onLoad(InputAction.java:29)
	at hudson.model.Run.onLoad(Run.java:342)
	at org.jenkinsci.plugins.workflow.job.WorkflowRun.onLoad(WorkflowRun.java:332)

java.lang.RuntimeException: Unable to copy /…/jobs/…/config.xml
	at hudson.plugins.jobConfigHistory.FileHistoryDao.createNewHistoryEntryAndCopyConfig(FileHistoryDao.java:252)
	at hudson.plugins.jobConfigHistory.FileHistoryDao.createNewItem(FileHistoryDao.java:238)
	at hudson.plugins.jobConfigHistory.JobConfigHistoryJobListener.onCreated(JobConfigHistoryJobListener.java:31)
	at hudson.model.listeners.ItemListener.fireOnCreated(ItemListener.java:161)
	at jenkins.model.Jenkins.putItem(Jenkins.java:2483)
	at …
Caused by: java.io.FileNotFoundException: /…/jobs/…/config.xml (No such file or directory)
	at java.io.FileInputStream.open(Native Method)
	at java.io.FileInputStream.<init>(FileInputStream.java:120)
	at hudson.plugins.jobConfigHistory.FileHistoryDao.copyConfigFile(FileHistoryDao.java:178)
	at hudson.plugins.jobConfigHistory.FileHistoryDao.createNewHistoryEntryAndCopyConfig(FileHistoryDao.java:250)
	... 108 more

[FIXED JENKINS-23020 JENKINS-23942] Convert the queue's cancel shutdown to POST

Both 0 and 1 are used to indicate some kind of success (the latter when Jenkins doesn't need to be started because it was already running), so we need to return 2.

java.lang.NullPointerException
	at hudson.model.User.idStrategy(User.java:140)
	at hudson.model.User.getOrCreate(User.java:373)
	at hudson.model.User.get(User.java:366)
	at hudson.model.User.get(User.java:331)
	at hudson.model.User.get(User.java:441)
	at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.getAuthentication(CpsFlowExecution.java:614)
	at org.jenkinsci.plugins.workflow.cps.CpsVmThread.run(CpsVmThread.java:20)

Conflicts:
	.idea/encodings.xml
	core/pom.xml
	pom.xml
	test/src/test/java/hudson/tasks/junit/CaseResultTest.java

Integrated the change

Add getFieldOrder() methods.

Add getFieldOrder() methods to classes which extend com.sun.jna.Structure,
for compatibility with newer versions of JNA.  [JENKINS-24521]

Bumping up dependencies to 1.3.1, with extra precaution to make
DiskFileItem non-serializable

init script: don't try to run on Java 5

Use copytruncate consistent with .deb packaging

also requires no signalling of the process and less risk of (ironically) lost logs which postrotate attempts to address.