Add compatibility with Java 11

[Don-vip]

Follow-up of #15560

First EA builds of Java 11 are available.

Issues:

1. ​WebStart will be removed in Java 11!
2. Wiremock ​uses javax.xml.bind.DatatypeConverter class which has been ​removed in JEP 320

[Don-vip]

Right now the build fails with:

compile-jmapviewer:
    [javac] Compiling 50 source files to /var/lib/jenkins/jobs/Java-EarlyAccess-JOSM/workspace/jdk/JDK11/build
    [javac] /var/lib/jenkins/jobs/Java-EarlyAccess-JOSM/workspace/jdk/JDK11/src/org/jdesktop/swinghelper/debug/CheckThreadViolationRepaintManager.java:19: error: cannot access WeakReference
    [javac] import java.lang.ref.WeakReference;
    [javac]                     ^
    [javac]   bad class file: /modules/java.base/java/lang/ref/WeakReference.class
    [javac]     class file has wrong version 55.0, should be 53.0
    [javac]     Please remove or make sure it appears in the correct subdirectory of the classpath.
    [javac] 1 error

[Don-vip]

In 13492/josm:

see #15560, see #16047 - disable error_prone on Java 10+, see ​https://github.com/google/error-prone/issues/860

[Don-vip]

Now the tests fail due to removal of EE APIs: [junit] java.lang.module.FindException: Module java.se.ee not found

[Don-vip]

In 13505/josm:

see #16047 - do not add EE modules with Java 11+

[Don-vip]

Now jacoco crashes:

[jacoco:coverage] Enhancing junit with coverage
    [junit] FATAL ERROR in native method: processing of -javaagent failed
    [junit] java.lang.reflect.InvocationTargetException
    [junit]     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit]     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    [junit]     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit]     at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    [junit]     at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:510)
    [junit]     at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:522)
    [junit] Caused by: java.lang.RuntimeException: Class java/lang/UnknownError could not be instrumented.
    [junit]     at org.jacoco.agent.rt.internal_36ebf62.core.runtime.ModifiedSystemClassRuntime.createFor(ModifiedSystemClassRuntime.java:139)
    [junit]     at org.jacoco.agent.rt.internal_36ebf62.core.runtime.ModifiedSystemClassRuntime.createFor(ModifiedSystemClassRuntime.java:100)
    [junit]     at org.jacoco.agent.rt.internal_36ebf62.PreMain.createRuntime(PreMain.java:55)
    [junit]     at org.jacoco.agent.rt.internal_36ebf62.PreMain.premain(PreMain.java:47)
    [junit]     ... 6 more
    [junit] Caused by: java.lang.NoSuchFieldException: $jacocoAccess
    [junit]     at java.base/java.lang.Class.getField(Class.java:1958)
    [junit]     at org.jacoco.agent.rt.internal_36ebf62.core.runtime.ModifiedSystemClassRuntime.createFor(ModifiedSystemClassRuntime.java:137)
    [junit]     ... 9 more

[Don-vip]

(this was expected as ​Jacoco does not yet support Java 10, because of slow ASM releases...)

[Don-vip]

In 13523/josm:

see #16047 - disable jacoco on Java 11+, see ​https://github.com/jacoco/jacoco/issues/629