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The test below causes VM failure instead of WrongMethodTypeException if uncomment any of invokeExact calls and run the test with -Xcomp option:
----------------------------------------------------------
import java.lang.invoke.*;
class A {
public static String foo(){return "";}
}
public class Test {
public static void main(String argv[]) throws Throwable {
MethodHandle handle = MethodHandles.lookup().findStatic
(A.class, "foo", MethodType.methodType(String.class));
String inv1 = (String) handle.invokeExact(null);
// String inv2 = (String) handle.invokeExact(new Object[]{});
// String inv3 = (String) handle.invokeExact(-1);
// CharSequence cs = (CharSequence) handle.invokeExact();
// Object obj = handle.invokeExact();
}
}
----------------------------------------------------------
C:\JDK\7\bin>java -version
java version "1.7.0-ea"
Java(TM) SE Runtime Environment (build 1.7.0-ea-b143)
Java HotSpot(TM) Client VM (build 21.0-b13, mixed mode)
C:\JDK\7\bin>javac Test.java
C:\JDK\7\bin>java -Xcomp Test
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x66029cd6, pid=324, tid=3976
#
# JRE version: 7.0-b143
# Java VM: Java HotSpot(TM) Client VM (21.0-b13 compiled mode windows-x86 )
# Problematic frame:
# V [jvm.dll+0x39cd6]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# D:\JCK7\292\hs_err_pid324.log
Phoning home...
Using server: 10.161.186.18, port 4711
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#
The issue is also reproducible on Linux and Solaris with "-client" option.
The problem is reproducible on b144:
---------------------------------------------------------
<dm154731@zenit> /set/java/re/jdk/7/latest/binaries/solaris-amd64/bin/java -version
java version "1.7.0-ea"
Java(TM) SE Runtime Environment (build 1.7.0-ea-b144)
Java HotSpot(TM) Server VM (build 21.0-b14, mixed mode)
<dm154731@zenit> /set/java/re/jdk/7/latest/binaries/solaris-amd64/bin/java -Xcomp -client Test
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0xfea8b557, pid=15125, tid=2
#
# JRE version: 7.0-b144
# Java VM: Java HotSpot(TM) Client VM (21.0-b14 compiled mode solaris-x86 )
# Problematic frame:
# V [libjvm.so+0x68b557] int methodOopDesc::validate_bci_from_bcx(int)const+0x27
#
# Core dump written. Default location: /home/dm154731/292/core or core.15125
#
# An error report file with more information is saved as:
# /home/dm154731/292/hs_err_pid15125.log
Phoning home...
Using server: 10.161.186.18, port 4711
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#
Abort (core dumped)
---------------------------------------------------------
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