Add compatibility with Java 17

[Don-vip]

Followup of #19724

First ​​​EA builds of Java 17 are available. Planning:

2021/06/10 Rampdown Phase One
2021/07/15 Rampdown Phase Two
2021/08/05 Initial Release Candidate
2021/08/19 Final Release Candidate
2021/09/14 General Availability

This one is important as it is the new LTS after Java 11. Not sure yet if we'll do a Java 8/11 migration or directly a Java 8/17 one.

See #21005 for Java 18 compatibility.

[Don-vip]

In 17530/josm:

see #19724, see #20522 - java 16/17 support in Linux launch scripts

[Don-vip]

In 17538/josm:

see #19724, see #20522 - enable jacoco on java 16/17 + add NPE details on Java 14+ in unit tests

[Don-vip]

In 17539/josm:

see #19724, see #20522 - upgrade to equalsverifier 3.5.5 - enable Java 16/17 for mac build

[Don-vip]

In 17893/josm:

see #20522 - update to error-prone 2.7.1 for Java 17 compatibility

[Don-vip]

In 17895/josm:

see #20522 - disable ProGuard on Java 17+, see ​https://github.com/Guardsquare/proguard/issues/132

[simon04]

In 17905/josm:

see #20522 - Disable ​https://errorprone.info/bugpattern/InlineMeSuggester

​https://errorprone.info/docs/inlineme

[Don-vip]

In 17962/josm:

see #20522 - handle both language codes for Hebrew (iw before Java 17, he starting from Java 17)

See ​https://bugs.openjdk.java.net/browse/JDK-8263202

[Don-vip]

In 18180/josm:

see #20522 - re-enable Proguard on Java 17+

[Don-vip]

Java 17 is released. Nice summary of "real" JEPs:
​https://openjdk.java.net/projects/jdk/17/jeps-since-jdk-11

(real meaning not counting all the "preview", "second preview", "incubator", "second incubator", etc... versions of enhancements)

[Don-vip]

In 18225/josm:

see #20522 - Prefer Java 17 over everything else

also fixes #21325 (via JDK-8248904)

[Don-vip]

Another nice release notes
​https://builds.shipilev.net/backports-monitor/release-notes-17.html

[mdk]

If now Java 17 is the preferred version, would it make sense to move the Java 17 builds in Jenkins from "EarlyAccess" to the normal builds? "EarlyAccess" is only execute once a week, if I see it correctly.

[Don-vip]

Yep.

[Don-vip]

In 18322/josm:

see #20522 see #21005 - Allow security manager, otherwise it raises a warning in Java 17 and throws an error with Java 18+

See ​https://bugs.openjdk.java.net/browse/JDK-8271301
See ​https://bugs.openjdk.java.net/browse/JDK-8270380

[Don-vip]

In 18347/josm:

see #20522 see #21005 - Allow security manager via sysproperty

[Don-vip]

In 18348/josm:

see #20522 see #21005 - Allow security manager via sysproperty (only for Java 17 and above)