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changeset 13820:20e7727588e8

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ControlFlowException can always have a null cause
author Christian Wimmer <christian.wimmer@oracle.com>
date Wed, 29 Jan 2014 20:43:28 -0800
parents 49db2c1e3bee
children b16ec83edc73
files graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/ControlFlowException.java
diffstat 1 files changed, 6 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/ControlFlowException.java	Thu Jan 30 00:52:33 2014 +0100
+++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/ControlFlowException.java	Wed Jan 29 20:43:28 2014 -0800
@@ -36,6 +36,12 @@
      * Creates an exception thrown to model control flow.
      */
     public ControlFlowException() {
+        /*
+         * We use the super constructor that initializes the cause to null. Without that, the cause
+         * would be this exception itself. This helps escape analysis: it avoids the circle of an
+         * object pointing to itself.
+         */
+        super((Throwable) null);
     }
 
     /**