From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 libjava/testsuite/libjava.jar/TestClosureGC.java | 116 +++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 libjava/testsuite/libjava.jar/TestClosureGC.java

(limited to 'libjava/testsuite/libjava.jar/TestClosureGC.java')

diff --git a/libjava/testsuite/libjava.jar/TestClosureGC.java b/libjava/testsuite/libjava.jar/TestClosureGC.java
new file mode 100644
index 000000000..69a325a99
--- /dev/null
+++ b/libjava/testsuite/libjava.jar/TestClosureGC.java
@@ -0,0 +1,116 @@
+/* Verify that libffi closures aren't deallocated too early.
+
+   Copyright (C) 2007 Free Software Foundation, Inc
+   Contributed by Alexandre Oliva <aoliva@redhat.com>
+
+   If libffi closures are released too early, we lose.
+ */
+
+import java.util.HashSet;
+
+public class TestClosureGC {
+    public static String objId (Object obj) {
+	return obj + "/"
+	    + Integer.toHexString(obj.getClass().getClassLoader().hashCode());
+    }
+    public static class cld extends java.net.URLClassLoader {
+	static final Object obj = new cl0();
+	public cld () throws Exception {
+	    super(new java.net.URL[] { });
+	    /* System.out.println (objId (this) + " created"); */
+	}
+	public void finalize () {
+	    /* System.out.println (objId (this) + " finalized"); */
+	}
+	public String toString () {
+	    return this.getClass().getName() + "@"
+		+ Integer.toHexString (hashCode ());
+	}
+	public Class loadClass (String name) throws ClassNotFoundException {
+	    try {
+		java.io.InputStream IS = getSystemResourceAsStream
+		    (name + ".class");
+		int maxsz = 1024, readsz = 0;
+		byte buf[] = new byte[maxsz];
+		for(;;) {
+		    int readnow = IS.read (buf, readsz, maxsz - readsz);
+		    if (readnow <= 0)
+			break;
+		    readsz += readnow;
+		    if (readsz == maxsz) {
+			byte newbuf[] = new byte[maxsz *= 2];
+			System.arraycopy (buf, 0, newbuf, 0, readsz);
+			buf = newbuf;
+		    }
+		}
+		return defineClass (name, buf, 0, readsz);
+	    } catch (Exception e) {
+		return super.loadClass (name);
+	    }
+	}
+    }
+    public static class cl0 {
+	public cl0 () {
+	    /* System.out.println (objId (this) + " created"); */
+	}
+	public void finalize () {
+	    /* System.out.println (objId (this) + " finalized"); */
+	}
+    }
+    public static class cl1 {
+	final HashSet hs;
+	static final Object obj = new cl0();
+	public cl1 (final HashSet hs) {
+	    this.hs = hs;
+	    /* System.out.println (objId (this) + " created"); */
+	}
+	public void finalize () {
+	    /* System.out.println (objId (this) + " finalized"); */
+	}
+    }
+    public static class cl2 {
+	final HashSet hs;
+	static final Object obj = new cl0();
+	public cl2 (final HashSet hs) {
+	    this.hs = hs;
+	    /* System.out.println (objId (this) + " created"); */
+	}
+	public void finalize () {
+	    /* System.out.println (objId (this) + " finalized"); */
+	    hs.add(this);
+	    hs.add(new cl0());
+	}
+    }
+    static final HashSet hs = new HashSet();
+    static final Object obj = new cl0();
+    public static void main(String[] argv) throws Exception {
+	{
+	    Class[] hscs = { HashSet.class };
+	    Object[] hsos = { hs };
+	    new cld().loadClass ("TestClosureGC$cl1").
+		getConstructor (hscs).newInstance (hsos);
+	    new cld().loadClass ("TestClosureGC$cl2").
+		getConstructor (hscs).newInstance (hsos);
+	    new cld().loadClass ("TestClosureGC$cl1").
+		getConstructor (hscs).newInstance (hsos);
+	    new cld().loadClass ("TestClosureGC$cl1").
+		getConstructor (hscs).newInstance (hsos);
+	}
+	for (int i = 1; i <= 5; i++) {
+	    /* System.out.println ("Will run GC and finalization " + i); */
+	    System.gc ();
+	    Thread.sleep (100);
+	    System.runFinalization ();
+	    Thread.sleep (100);
+	    if (hs.isEmpty ())
+		continue;
+	    java.util.Iterator it = hs.iterator ();
+	    while (it.hasNext ()) {
+		Object obj = it.next();
+		/* System.out.println (objId (obj) + " in ht, removing"); */
+		it.remove ();
+	    }
+	}
+	System.out.println ("ok");
+    }
+}
-- 
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