Claude
e0cb6e83e2
Runnable sources, broken examples and captured transcripts for the ankurm.com JEP 512 article, including the measured launch order and a private-constructor difference between 25 and 27. Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01TF9JWFvJSNm6HVzswzZU5a
69 lines
2.1 KiB
Plaintext
69 lines
2.1 KiB
Plaintext
$ java broken/NoMain.java (JDK 25)
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broken/NoMain.java:1: error: compact source file does not have main method in the form of void main() or void main(String[] args)
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void greet() { IO.println("hi"); }
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^
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1 error
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error: compilation failed
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$ java broken/NoIoPrefix.java (JDK 25)
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broken/NoIoPrefix.java:2: error: cannot find symbol
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println("hello");
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^
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symbol: method println(String)
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location: class NoIoPrefix
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1 error
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error: compilation failed
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$ java broken/NotInJavaBase.java (JDK 25)
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broken/NotInJavaBase.java:2: error: cannot find symbol
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HttpClient client = HttpClient.newHttpClient();
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^
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symbol: class HttpClient
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location: class NotInJavaBase
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broken/NotInJavaBase.java:2: error: cannot find symbol
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HttpClient client = HttpClient.newHttpClient();
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^
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symbol: variable HttpClient
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location: class NotInJavaBase
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2 errors
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error: compilation failed
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$ java broken/WithPackage.java (JDK 25)
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broken/WithPackage.java:1: error: compact source file should not have package declaration
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package demo;
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^
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1 error
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error: compilation failed
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$ javac -d out broken/Other.java broken/Target.java (JDK 25; Target.java is a compact file)
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broken/Other.java:2: error: Target is abstract; cannot be instantiated
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Target t = new Target();
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^
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broken/Other.java:3: error: cannot find symbol
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t.main();
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^
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symbol: method main()
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location: variable t of type Target
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2 errors
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$ java broken/Other.java (JDK 25; source launcher, Target.java sits next to it)
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broken/Other.java:2: error: Target is abstract; cannot be instantiated
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Target t = new Target();
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^
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1 error
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error: compilation failed
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$ java broken/WrongParam.java (JDK 25)
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broken/WrongParam.java:1: error: compact source file does not have main method in the form of void main() or void main(String[] args)
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void main(int count) { IO.println("count = " + count); }
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^
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1 error
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error: compilation failed
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$ java broken/PrivateMain.java (JDK 25)
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error: can't find main(String[]) or main() method in class: PrivateMain
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$ java broken/CtorWithArgs.java (JDK 25)
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error: can't find no argument constructor in class: CtorWithArgs
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