FULL PRODUCT VERSION :
java version "1.8.0_40"
Java(TM) SE Runtime Environment (build 1.8.0_40-b25)
Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux unit-663 3.16.0-33-generic #44-Ubuntu SMP Thu Mar 12 12:19:35 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
public interface Main<T> {
    T create(T other);
 
    class Poly<T extends Main<T>> implements Main<Poly<T>> {
        static final Poly<?> INSTANCE = new Poly() {
        };
 
        public Poly<T> create(Poly<T> other) {
            return new Poly<>();
        }
    }
 
    static void main(String[] args) {
        new Poly();
    }
}


Code compiles correctly, but fails in runtime:
Exception in thread "main" java.lang.VerifyError: Bad type on operand stack
Exception Details:
  Location:
    Main$Poly$1.create(Ljava/lang/Object;)Ljava/lang/Object; @2: invokespecial
  Reason:
    Type 'java/lang/Object' (current frame, stack[1]) is not assignable to 'Main$Poly'
  Current Frame:
    bci: @2
    flags: { }
    locals: { 'Main$Poly$1', 'java/lang/Object' }
    stack: { 'Main$Poly$1', 'java/lang/Object' }
  Bytecode:
    0x0000000: 2a2b b700 02b0

at Main$Poly.<clinit>(Main.java:5)
at Main.main(Main.java:14)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
run this code
public interface Main<T> {
    T create(T other);
 
    class Poly<T extends Main<T>> implements Main<Poly<T>> {
        static final Poly<?> INSTANCE = new Poly() {
        };
 
        public Poly<T> create(Poly<T> other) {
            return new Poly<>();
        }
    }
 
    static void main(String[] args) {
        new Poly();
    }
}



EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
empty ouput, no fail
ACTUAL -
Exception in thread "main" java.lang.VerifyError: Bad type on operand stack
Exception Details:
  Location:
    Main$Poly$1.create(Ljava/lang/Object;)Ljava/lang/Object; @2: invokespecial
  Reason:
    Type 'java/lang/Object' (current frame, stack[1]) is not assignable to 'Main$Poly'
  Current Frame:
    bci: @2
    flags: { }
    locals: { 'Main$Poly$1', 'java/lang/Object' }
    stack: { 'Main$Poly$1', 'java/lang/Object' }
  Bytecode:
    0x0000000: 2a2b b700 02b0

at Main$Poly.<clinit>(Main.java:5)
at Main.main(Main.java:14)

ERROR MESSAGES/STACK TRACES THAT OCCUR :
Exception in thread "main" java.lang.VerifyError: Bad type on operand stack
Exception Details:
  Location:
    Main$Poly$1.create(Ljava/lang/Object;)Ljava/lang/Object; @2: invokespecial
  Reason:
    Type 'java/lang/Object' (current frame, stack[1]) is not assignable to 'Main$Poly'
  Current Frame:
    bci: @2
    flags: { }
    locals: { 'Main$Poly$1', 'java/lang/Object' }
    stack: { 'Main$Poly$1', 'java/lang/Object' }
  Bytecode:
    0x0000000: 2a2b b700 02b0

at Main$Poly.<clinit>(Main.java:5)
at Main.main(Main.java:14)

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public interface Main<T> {
    T create(T other);
 
    class Poly<T extends Main<T>> implements Main<Poly<T>> {
        static final Poly<?> INSTANCE = new Poly() {
        };
 
        public Poly<T> create(Poly<T> other) {
            return new Poly<>();
        }
    }
 
    static void main(String[] args) {
        new Poly();
    }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
no workaround