Experimental option -Ybreak-cycles.

Overcomes cycles encountered during classfile parsing
in possibly sketchy fashion.

  "illegal cyclic reference involving class Foo"

is the watchword.  See SI-3809.

2 files changed, 19 insertions, 0 deletions

diff --git a/test/files/pos/cycle/J_1.java b/test/files/pos/cycle/J_1.java
new file mode 100644
index 0000000000..0cc218eebe
--- /dev/null
+++ b/test/files/pos/cycle/J_1.java
@@ -0,0 +1,16 @@
+package bar;
+
+public class J_1 {
+  public void f(C.D arg) {
+  }
+}
+
+class B extends J_1 {
+  public void g(C.D arg) {
+  }
+}
+
+class C extends B {
+  public class D {
+  }
+}
diff --git a/test/files/pos/cycle/X_2.scala b/test/files/pos/cycle/X_2.scala
new file mode 100644
index 0000000000..c1840f3b99
--- /dev/null
+++ b/test/files/pos/cycle/X_2.scala
@@ -0,0 +1,3 @@
+import bar.J_1._ //<--- illegal cyclic reference involving
+
+class X