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--- inner_classfiles_naming [2018/03/04 02:53]
+++ inner_classfiles_naming [2019/10/06 20:37] (current)
@@ Line 1: / Line 1: @@
+From the beginning of the introduction of [[http://jcp.org/aboutJava/communityprocess/maintenance/JLS/innerclasses.pdf|inner classes]] in Java, developers knew that it would be a mess... and it has been proven again and again. Here is a recent example. Take the following (academic) piece of code:
+<code>
+public class Anonymous {
+	public void foo() {
+		class B {}
+		new B();
+	}
+}
+</code>
+Compile it with your standard Java compiler ''javac''. On both MacOS and Windows, there are two files generated... **BUT**, these two files have different names (!), thus throwing on the ground some of the dedicated [[PADL]] tests (in particular in project [[PADL Creator ClassFile|PADL Creator ClassFile Tests]])
+  * On MacOS
+    * ''Anonymous.class''
+    * ''Anonymous$1B.class''
+  * On Windows
+    * ''Anonymous.class''
+    * ''Anonymous$1$B.class''
+Did you notice the difference? on MacOS, the file describing the inner class is named ''Anonymous$1B.class'' with only one $ sign; on Windows, its name is ''Anonymous$1$B.class'' with two $ signs. **Sigh...**

Ptidej Team