copying: fold in graph copying (shared nodes, cycles, identity-map fix), serialization rules (constructors, record canonical constructor, ObjectInputFilter), record array components, clone() as a defensive copy, two more compile-error exhibits; 24 tests

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_017ic4b4BL3cEPHQTk2McE7C

copying/scripts/broken.sh

@@ -1,9 +1,15 @@
 #!/usr/bin/env bash
-# Compiles the deliberately broken source and captures the compiler's own message.
+# Compiles each deliberately broken source and captures the compiler's own message.
 cd "$(dirname "$0")/.."
 OUT=$(mktemp -d)
-{
-  echo '$ javac src/broken/FinalFieldClone.java'
-  javac -d "$OUT" src/broken/FinalFieldClone.java 2>&1 | grep -v '^Picked up JAVA_TOOL_OPTIONS' || true
-} > output/02-final-field-clone.txt
-cat output/02-final-field-clone.txt
+capture() { # <source file name> <output name>
+  {
+    echo "\$ javac src/broken/$1"
+    javac -d "$OUT" "src/broken/$1" 2>&1 | grep -v '^Picked up JAVA_TOOL_OPTIONS' || true
+  } > "output/$2.txt"
+  cat "output/$2.txt"
+}
+capture FinalFieldClone.java   02-final-field-clone
+capture ForgotToOverride.java  16-forgot-override
+capture WithExpression.java    17-with-expression
+rm -rf "$OUT"

copying/scripts/run-all.sh

@@ -13,6 +13,10 @@ run RecordCopyDemo        06-records
 run DefensiveCopyDemo     07-defensive
 run CollectionCopyDemo    08-collections
 run CopyOfIdentityDemo    11-copyof-identity
+run GraphCopyDemo         12-graph-copy
+run SerializationRulesDemo 13-serialization-rules
+run RecordArrayDemo       14-record-arrays
+run DefensiveCloneDemo    15-defensive-clone
 mvn -B test 2>&1 | grep -E 'Tests run|BUILD|ERROR|FAIL' | grep -v 'Picked up' > output/09-tests.txt
 run CopyCostDemo          10-cost
 echo "regenerated:"; ls output