Are value types supposed to work at all currently?
Simon Ochsenreither
simon at ochsenreither.de
Tue May 19 15:15:30 UTC 2015
Hi,
I'm currently working on my talk about value types for tomorrow, and it seems
that currently even the most basic value types are broken:
public final __ByValue class Cell {
public Cell(int value) {
this.value = value;
}
public final int value;
}
/home/soc/Development/valhalla/build/linux-x86_64-normal-server-release/images/jdk/bin/java
Cell
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.VerifyError: Bad instruction: cb
Exception Details:
Location:
Cell.<init>(I)V @0: fast_agetfield
Reason:
Error exists in the bytecode
Bytecode:
0000000: cb00 b700 01cb 001b b500 02b1
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2747)
at java.lang.Class.privateGetMethodRecursive(Class.java:3092)
at java.lang.Class.getMethod0(Class.java:3062)
at java.lang.Class.getMethod(Class.java:1830)
at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:567)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:534)
Is this expected? Is there some working branch/revision somewhere which is
usable for a demo?
Thanks!
Simon
PS: What's the suggested way to inspect the "bytecode" of specialized classes
(the one after the generic type is instantiated)?
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