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jep511: add the star-import clash demo, java.base export count and a java.time jshell check

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TwoStarImports.java, the java.base export count in output/04, the extra LocalDate line in src/imports.jsh and regenerated transcripts. Additive commit.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01TF9JWFvJSNm6HVzswzZU5a
This commit is contained in:
Claude
2026-09-24 11:42:45 +00:00
parent 385cc25233
commit 96b25c8fc4
6 changed files with 47 additions and 4 deletions
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jep511/output/02-ambiguity.txt
+22
View File
@@ -34,6 +34,28 @@ broken/AmbiguousList.java:6: error: reference to List is ambiguous
both class java.awt.List in java.awt and interface java.util.List in java.util match
1 error
$ javac broken/TwoStarImports.java (25.0.4.1+1-LTS)
broken/TwoStarImports.java:6: error: reference to Date is ambiguous
Date d = new Date(0L); // the same clash, with the old on-demand imports
^
both class java.sql.Date in java.sql and class java.util.Date in java.util match
broken/TwoStarImports.java:6: error: reference to Date is ambiguous
Date d = new Date(0L); // the same clash, with the old on-demand imports
^
both class java.sql.Date in java.sql and class java.util.Date in java.util match
2 errors
$ javac broken/TwoStarImports.java (27+35)
broken/TwoStarImports.java:6: error: reference to Date is ambiguous
Date d = new Date(0L); // the same clash, with the old on-demand imports
^
both class java.sql.Date in java.sql and class java.util.Date in java.util match
broken/TwoStarImports.java:6: error: reference to Date is ambiguous
Date d = new Date(0L); // the same clash, with the old on-demand imports
^
both class java.sql.Date in java.sql and class java.util.Date in java.util match
2 errors
$ javac src/FixedDate.java && java FixedDate (25.0.4.1+1-LTS)
java.util.Date
java.sql.Date
jep511/output/04-what-a-module-import-brings-in.txt
+5 -2
View File
@@ -1,11 +1,14 @@
$ java --describe-module java.base | grep -c '^exports' (25.0.4.1+1-LTS)
58
$ java --describe-module java.sql (25.0.4.1+1-LTS)
[email protected]
exports java.sql
exports javax.sql
requires java.xml transitive
requires java.logging transitive
requires java.transaction.xa transitive
requires java.base mandated
requires java.xml transitive
requires java.logging transitive
uses java.sql.Driver
$ java --describe-module java.se | grep -c 'requires' (25.0.4.1+1-LTS)
jep511/output/09-jshell.txt
+7
View File
@@ -10,12 +10,19 @@ $ jshell --feedback concise src/imports.jsh (21.0.10+7-Ubuntu-124.04)
import java.util.regex.*
import java.util.stream.*
[2, 4]
Error:
cannot find symbol
symbol: variable LocalDate
System.out.println(LocalDate.of(2026, 9, 15))
^-------^
$ jshell --feedback concise src/imports.jsh (25.0.4.1+1-LTS)
import java.base
[2, 4]
2026-09-15
$ jshell --feedback concise src/imports.jsh (27+35)
import java.base
[2, 4]
2026-09-15