Revert "Remove Java finalizers code"

This reverts commit 94e1da6dc82a8ed38ee7a5691d691d375aaa28cb.

1 files changed, 45 insertions, 0 deletions

diff --git a/java/src/IceUtilInternal/Assert.java b/java/src/IceUtilInternal/Assert.java
new file mode 100644
index 00000000000..314f20d8200
--- /dev/null
+++ b/java/src/IceUtilInternal/Assert.java
@@ -0,0 +1,45 @@
+// **********************************************************************
+//
+// Copyright (c) 2003-2008 ZeroC, Inc. All rights reserved.
+//
+// This copy of Ice is licensed to you under the terms described in the
+// ICE_LICENSE file included in this distribution.
+//
+// **********************************************************************
+
+package IceUtilInternal;
+
+public final class Assert
+{
+    //
+    // The JVM ignores exceptions raised in finalizers, therefore finalizers
+    // that use assertions should call this method instead of assert().
+    //
+    public static void
+    FinalizerAssert(boolean b)
+    {
+        if(!b)
+        {
+            //
+            // Create a Throwable to obtain the stack trace.
+            //
+            Throwable t = new Throwable();
+            StackTraceElement[] trace = t.getStackTrace();
+            if(trace.length > 1)
+            {
+                //
+                // Skip the first frame, which represents this method.
+                //
+                System.err.println("Assertion failure:");
+                for(int i = 1; i < trace.length; ++i)
+                {
+                    System.err.println("\tat " + trace[i]);
+                }
+            }
+            else
+            {
+                System.err.println("Assertion failure (no stack trace information)");
+            }
+        }
+    }
+}