frog:~/workspaces/test/Generic5 $ rm *.class
frog:~/workspaces/test/Generic5 $ cat -n T1.java
     1 class X<T> {}
     2 class T1<A extends X<B>, B> {}
frog:~/workspaces/test/Generic5 $ cat -n T2.java
     1 class Z {}
     2 class Y extends X<Z> {}
     3 class T2 {
     4 T1<Y, Z> t1;
     5 }
frog:~/workspaces/test/Generic5 $ newjavac -gj T1.java T2.java
frog:~/workspaces/test/Generic5 $ newjavac -gj T2.java
T2.java:4: cannot access T1
bad class file: ./T1.class
undeclared type variable: B
Please remove or make sure it appears in the correct subdirectory of the classpath.
    T1<Y, Z> t1;
    ^
1 error
frog:~/workspaces/test/Generic5 $