From martinrb at google.com  Fri May 10 16:51:44 2013
From: martinrb at google.com (Martin Buchholz)
Date: Fri, 10 May 2013 16:51:44 -0700
Subject: Infloop in javac on invalid source
Message-ID: <CA+kOe0_2UHhm2dvDYxiwgt2MxitFNM5yQC9Zk6YdYvCEhv1rMw@mail.gmail.com>

Hi javac folk!

This is a bug report for a serious bug: an infinite loop in javac that
appears to have been introduced into jdk7 (also repro'd in dk8) relatively
recently, as discovered by my colleague Raluca.  She suspects this commit:

http://hg.openjdk.java.net/jdk7u/jdk7u/langtools/rev/4baab658f357

#!/bin/bash
set -eu

mkdir -p /tmp/t9/baz
cd /tmp/t9

cat > A.java <<'EOF'
import java.util.Map;
import java.util.Set;
import baz.Baz;
public class A {
   private static class Foo<M extends Map, S extends Set> extends Bar<M, S>
{
       @Override void run() {}
   }
   private static class Bar<M extends Map, S extends Set> extends Baz<M, S>
{
       @Override void run() { }
   }
}
EOF

cat > baz/Baz.java <<'EOF'
package baz;
import java.util.Map;
public class Baz <M extends Map> {
   void run() { }
}
EOF

javac baz/Baz.java
jar cvf libbaz.jar baz/Baz.class
javac -cp libbaz.jar A.java

From jonathan.gibbons at oracle.com  Sat May 11 10:15:48 2013
From: jonathan.gibbons at oracle.com (Jonathan Gibbons)
Date: Sat, 11 May 2013 10:15:48 -0700
Subject: Infloop in javac on invalid source
In-Reply-To: <CA+kOe0_2UHhm2dvDYxiwgt2MxitFNM5yQC9Zk6YdYvCEhv1rMw@mail.gmail.com>
References: <CA+kOe0_2UHhm2dvDYxiwgt2MxitFNM5yQC9Zk6YdYvCEhv1rMw@mail.gmail.com>
Message-ID: <518E7CC4.9010807@oracle.com>

Martin,

Thank you. I have filed JDK-8014380 to track this issue.

-- Jon

On 05/10/2013 04:51 PM, Martin Buchholz wrote:
> Hi javac folk!
>
> This is a bug report for a serious bug: an infinite loop in javac that 
> appears to have been introduced into jdk7 (also repro'd in dk8) 
> relatively recently, as discovered by my colleague Raluca.  She 
> suspects this commit:
>
> http://hg.openjdk.java.net/jdk7u/jdk7u/langtools/rev/4baab658f357
>
> #!/bin/bash
> set -eu
>
> mkdir -p /tmp/t9/baz
> cd /tmp/t9
>
> cat > A.java <<'EOF'
> import java.util.Map;
> import java.util.Set;
> import baz.Baz;
> public class A {
>    private static class Foo<M extends Map, S extends Set> extends 
> Bar<M, S> {
>        @Override void run() {}
>    }
>    private static class Bar<M extends Map, S extends Set> extends 
> Baz<M, S> {
>        @Override void run() { }
>    }
> }
> EOF
>
> cat > baz/Baz.java <<'EOF'
> package baz;
> import java.util.Map;
> public class Baz <M extends Map> {
>    void run() { }
> }
> EOF
>
> javac baz/Baz.java
> jar cvf libbaz.jar baz/Baz.class
> javac -cp libbaz.jar A.java
>