ADDITIONAL SYSTEM INFORMATION :
debian sid
Linux 5.10.0-6-amd64 #1 SMP Debian 5.10.28-1 (2021-04-09) x86_64 GNU/Linux
openjdk 17.0.1 2021-10-19
OpenJDK Runtime Environment (build 17.0.1+12-Debian-1)
OpenJDK 64-Bit Server VM (build 17.0.1+12-Debian-1, mixed mode, sharing)


A DESCRIPTION OF THE PROBLEM :
type inference failed with 'cannot find symbol' error

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
javac Test.java

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
compiled successfuly
ACTUAL -
javac Test.java
Test.java:25: error: cannot find symbol
                System.out.println(inHours); //cannot find symbol inHours?
                                   ^
  symbol: variable inHours
Test.java:31: error: cannot find symbol
                System.out.println(inHours); //cannot find symbol inHours?
                                   ^
  symbol: variable inHours
Test.java:37: error: cannot find symbol
                System.out.println(inHours); //cannot find symbol inHours?
                                   ^
  symbol: variable inHours
3 errors


---------- BEGIN SOURCE ----------
package bug;

import java.util.function.Consumer;

class Test {
    // B must be generic to reproduce
    static class B<T>{}

    static class A1 {
        public <T> A1(Consumer<T> cons) {}
    }

    static class A2<T> {
        public A2(Consumer<T> cons) {}
    }

    static class A3 {
        public <T> A3(T val, Consumer<T> cons) {}
    }

    public void mount() {
        // not works. Expected inHours will be infered as Object
        new A1(inHours ->
            new B<>() {{
                System.out.println(inHours); //cannot find symbol inHours?
            }});

        // not works. Expected inHours will be infered as Object
        new A2<>(inHours ->
            new B<>() {{
                System.out.println(inHours); //cannot find symbol inHours?
            }});

        // not works. Expected inHours will be infered as Boolean
        new A3(true, inHours ->
            new B<>() {{
                System.out.println(inHours); //cannot find symbol inHours?
            }});
    }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
package bug;

import java.util.function.Consumer;

public class Workaround {
    // B must be generic to reproduce
    static class B<T> {}

    static class A1 {
        public <T> A1(Consumer<T> cons) {}
    }

    static class A2<T> {
        public A2(Consumer<T> cons) {}
    }

    static class A3 {
        public <T> A3(T val, Consumer<T> cons) {}
    }

    public void mount() {
        // works (workaround)
        new A1((Consumer<Boolean>) inHours ->
            new B<>() {{
                System.out.println(inHours);
            }});

        // works (workaround)
        new A2<Boolean>(inHours ->
            new B<>() {{
                System.out.println(inHours);
            }});

        // works (workaround)
        new A3(true, (Consumer<Boolean>) inHours ->
            new B<>() {{
                System.out.println(inHours);
            }});
    }
}


FREQUENCY : always