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Add jep512 module: compact source files and instance main methods on JDK 25 and 27

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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
This commit is contained in:
Claude
2026-09-24 10:32:47 +00:00
parent 6b5a918278
commit e0cb6e83e2
34 changed files with 490 additions and 0 deletions
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jep512/output/08-io-class.txt
+26
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@@ -0,0 +1,26 @@
$ javap -p java.lang.IO
Compiled from "IO.java"
public final class java.lang.IO {
private static java.io.BufferedReader br;
private java.lang.IO();
public static void println(java.lang.Object);
public static void println();
public static void print(java.lang.Object);
public static java.lang.String readln();
public static java.lang.String readln(java.lang.String);
static synchronized java.io.BufferedReader reader();
}
$ javap -p -c java.lang.IO | grep -E 'public static|System.out|readLine|IOError'
public static void println(java.lang.Object);
0: getstatic #14 // Field java/lang/System.out:Ljava/io/PrintStream;
public static void println();
0: getstatic #14 // Field java/lang/System.out:Ljava/io/PrintStream;
public static void print(java.lang.Object);
0: getstatic #14 // Field java/lang/System.out:Ljava/io/PrintStream;
10: invokevirtual #31 // Method java/io/PrintStream.flush:()V
public static java.lang.String readln();
3: invokevirtual #40 // Method java/io/BufferedReader.readLine:()Ljava/lang/String;
8: new #48 // class java/io/IOError
13: invokespecial #50 // Method java/io/IOError."<init>":(Ljava/lang/Throwable;)V
public static java.lang.String readln(java.lang.String);