#11 jdk21: error: lastEntry() in PatriciaTrie cannot implement lastEntry() in SequencedMap

[milahu]

compiling wireshare 6.0.2 (49c61f0e252b22e4c329ad1e92aadef319bc439e) fails with

compile-src:
     [echo] compiling source for collection...
    [mkdir] Created dir: /build/code-49c61f0/WireShare/components/collection/build
    [mkdir] Created dir: /build/code-49c61f0/WireShare/components/collection/build/classes
    [mkdir] Created dir: /build/code-49c61f0/WireShare/components/collection/build/lib
[ivy:resolve]   [20250430091137] org.limewire#common;latest.integration
    [javac] Compiling 71 source files to /build/code-49c61f0/WireShare/components/collection/build/classes
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 8
    [javac] warning: [options] source value 8 is obsolete and will be removed in a future release
    [javac] warning: [options] target value 8 is obsolete and will be removed in a future release
    [javac] warning: [options] To suppress warnings about obsolete options, use -Xlint:-options.
    [javac] /build/code-49c61f0/WireShare/components/collection/src/main/java/org/limewire/collection/PatriciaTrie.java:1594: error: lastEntry() in PatriciaTrie cannot implement lastEntry() in SequencedMap
    [javac]     private TrieEntry<K, V> lastEntry() {
    [javac]                             ^
    [javac]   attempting to assign weaker access privileges; was public
    [javac]   where K#1,V#1,K#2,V#2 are type-variables:
    [javac]     K#1 extends Object declared in class PatriciaTrie
    [javac]     V#1 extends Object declared in class PatriciaTrie
    [javac]     K#2 extends Object declared in interface SequencedMap
    [javac]     V#2 extends Object declared in interface SequencedMap

java version

• openjdk-23.0.2+7 - error: lastEntry() in PatriciaTrie cannot implement lastEntry() in SequencedMap
• openjdk-21.0.5+11 - error: lastEntry() in PatriciaTrie cannot implement lastEntry() in SequencedMap
• openjdk-17.0.14+7 - BUILD SUCCESSFUL
• openjdk-11.0.26+4 - BUILD SUCCESSFUL
• openjdk-8u442-b06 - BUILD SUCCESSFUL

[milahu]

jdk17 fails with runtime error

java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @6d79da26

jdk11 works