--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/gc/6941923/Test6941923.java	Tue Apr 09 15:32:45 2013 +0200
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test Test6941923.java
+ * @bug 6941923
+ * @summary test flags for gc log rotation
+ * @library /testlibrary
+ * @run main/othervm/timeout=600 Test6941923
+ *
+ */
+import com.oracle.java.testlibrary.*;
+import java.io.File;
+import java.io.FilenameFilter;
+import java.util.ArrayList;
+import java.util.Arrays;
+
+class GCLoggingGenerator {
+
+    public static void main(String[] args) throws Exception {
+
+        long sizeOfLog = Long.parseLong(args[0]);
+        long lines = sizeOfLog / 80;
+        // full.GC generates ad least 1-line which is not shorter then 80 chars
+        // for some GC 2 shorter lines are generated
+        for (long i = 0; i < lines; i++) {
+            System.gc();
+        }
+    }
+}
+
+public class Test6941923 {
+
+    static final File currentDirectory = new File(".");
+    static final String logFileName = "test.log";
+    static final int logFileSizeK = 16;
+    static FilenameFilter logFilter = new FilenameFilter() {
+        @Override
+        public boolean accept(File dir, String name) {
+            return name.startsWith(logFileName);
+        }
+    };
+
+    public static void cleanLogs() {
+        for (File log : currentDirectory.listFiles(logFilter)) {
+            if (!log.delete()) {
+                throw new Error("Unable to delete " + log.getAbsolutePath());
+            }
+        }
+    }
+
+    public static void runTest(int numberOfFiles) throws Exception {
+
+        ArrayList<String> args = new ArrayList();
+        String[] logOpts = new String[]{
+            "-cp", System.getProperty("java.class.path"),
+            "-Xloggc:" + logFileName,
+            "-XX:-DisableExplicitGC", // to sure that System.gc() works
+            "-XX:+PrintGC", "-XX:+PrintGCDetails", "-XX:+UseGCLogFileRotation",
+            "-XX:NumberOfGCLogFiles=" + numberOfFiles,
+            "-XX:GCLogFileSize=" + logFileSizeK + "K", "-Xmx128M"};
+        // System.getProperty("test.java.opts") is '' if no options is set
+        // need to skip such empty
+        String[] externalVMopts = System.getProperty("test.java.opts").length() == 0
+                ? new String[0]
+                : System.getProperty("test.java.opts").split(" ");
+        args.addAll(Arrays.asList(externalVMopts));
+        args.addAll(Arrays.asList(logOpts));
+        args.add(GCLoggingGenerator.class.getName());
+        args.add(String.valueOf(numberOfFiles * logFileSizeK * 1024));
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args.toArray(new String[0]));
+        pb.redirectErrorStream(true);
+        pb.redirectOutput(new File(GCLoggingGenerator.class.getName() + ".log"));
+        Process process = pb.start();
+        int result = process.waitFor();
+        if (result != 0) {
+            throw new Error("Unexpected exit code = " + result);
+        }
+        File[] logs = currentDirectory.listFiles(logFilter);
+        int smallFilesNumber = 0;
+        for (File log : logs) {
+            if (log.length() < logFileSizeK * 1024) {
+                smallFilesNumber++;
+            }
+        }
+        if (logs.length != numberOfFiles) {
+            throw new Error("There are only " + logs.length + " logs instead " + numberOfFiles);
+        }
+        if (smallFilesNumber > 1) {
+            throw new Error("There should maximum one log with size < " + logFileSizeK + "K");
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        cleanLogs();
+        runTest(1);
+        cleanLogs();
+        runTest(3);
+        cleanLogs();
+    }
+}

--- a/hotspot/test/gc/6941923/test6941923.sh	Mon Apr 08 07:49:28 2013 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,166 +0,0 @@
-##
-## @test @(#)test6941923.sh
-## @bug 6941923 
-## @summary test new added flags for gc log rotation 
-## @author yqi 
-## @run shell test6941923.sh
-##
-## some tests require path to find test source dir
-if [ "${TESTSRC}" = "" ]
-then
-  TESTSRC=${PWD}
-  echo "TESTSRC not set.  Using "${TESTSRC}" as default"
-fi
-echo "TESTSRC=${TESTSRC}"
-## Adding common setup Variables for running shell tests.
-. ${TESTSRC}/../../test_env.sh
-
-## skip on windows
-OS=`uname -s`
-case "$OS" in
-  Windows_* | CYGWIN_* )
-    echo "Test skipped for Windows"
-    exit 0 
-    ;;
-esac
-
-# create a small test case
-testname="Test"
-if [ -e ${testname}.java ]; then
-  rm -rf ${testname}.*
-fi
-
-cat >> ${testname}.java << __EOF__
-import java.util.Vector;
-
-public class Test implements Runnable
-{
-  private boolean _should_stop = false;
-
-  public static void main(String[] args) throws Exception {
-
-    long limit = Long.parseLong(args[0]) * 60L * 1000L;   // minutes
-    Test t = new Test();
-    t.set_stop(false);
-    Thread thr = new Thread(t);
-    thr.start();
-
-    long time1 = System.currentTimeMillis();
-    long time2 = System.currentTimeMillis();
-    while (time2 - time1 < limit) {
-      try {
-        Thread.sleep(2000); // 2 seconds
-      }
-      catch(Exception e) {}
-      time2 = System.currentTimeMillis();
-      System.out.print("\r... " + (time2 - time1)/1000 + " seconds");
-    }
-    System.out.println();
-    t.set_stop(true);
-  }
-  public void set_stop(boolean value) { _should_stop = value; }
-  public void run() {
-    int cap = 20000;
-    int fix_size = 2048;
-    int loop = 0;
-    Vector< byte[] > v = new Vector< byte[] >(cap);
-    while(!_should_stop) {
-      byte[] g = new byte[fix_size];
-      v.add(g);
-      loop++;
-      if (loop > cap) {
-         v = null;
-         cap *= 2;
-         if (cap > 80000) cap = 80000;
-         v = new Vector< byte[] >(cap);
-      }
-    }
-  }
-}
-__EOF__
-
-msgsuccess="succeeded"
-msgfail="failed"
-gclogsize="16K"
-filesize=$((16*1024))
-${COMPILEJAVA}/bin/javac ${TESTJAVACOPTS} ${testname}.java > $NULL 2>&1
-
-if [ $? != 0 ]; then
-  echo "${COMPILEJAVA}/bin/javac ${testname}.java $fail"
-  exit -1
-fi
-
-# test for 2 minutes, it will complete circulation of gc log rotation
-tts=2
-logfile="test.log"
-hotspotlog="hotspot.log"
-
-if [ -e $logfile  ]; then
-  rm -rf $logfile
-fi
-
-#also delete $hotspotlog if it exists
-if [ -f $hotspotlog ]; then 
-  rm -rf $hotspotlog
-fi
-
-options="-Xloggc:$logfile -XX:+UseConcMarkSweepGC -XX:+PrintGC -XX:+PrintGCDetails -XX:+UseGCLogFileRotation  -XX:NumberOfGCLogFiles=1 -XX:GCLogFileSize=$gclogsize"
-echo "Test gc log rotation in same file, wait for $tts minutes ...."
-${TESTJAVA}/bin/java $options $testname $tts
-if [ $? != 0 ]; then
-  echo "$msgfail"
-  exit -1
-fi
-
-# rotation file will be $logfile.0 
-if [ -f $logfile.0 ]; then
-  outfilesize=`ls -l $logfile.0 | awk '{print $5 }'`
-  if [ $((outfilesize)) -ge $((filesize)) ]; then
-    echo $msgsuccess
-  else
-    echo $msgfail
-  fi
-else 
-  echo $msgfail
-  exit -1
-fi
-
-# delete log file 
-rm -rf $logfile.0
-if [ -f $hotspotlog ]; then
-  rm -rf $hotspotlog
-fi
-
-#multiple log files
-numoffiles=3
-options="-Xloggc:$logfile -XX:+UseConcMarkSweepGC -XX:+PrintGC -XX:+PrintGCDetails -XX:+UseGCLogFileRotation  -XX:NumberOfGCLogFiles=$numoffiles -XX:GCLogFileSize=$gclogsize"
-echo "Test gc log rotation in $numoffiles files, wait for $tts minutes ...."
-${TESTJAVA}/bin/java $options $testname $tts
-if [ $? != 0 ]; then
-  echo "$msgfail"
-  exit -1
-fi
-
-atleast=0    # at least size of numoffile-1 files >= $gclogsize
-tk=0
-while [ $(($tk)) -lt $(($numoffiles)) ]
-do
-  if [ -f $logfile.$tk ]; then
-    outfilesize=`ls -l $logfile.$tk | awk '{ print $5 }'`
-    if [ $(($outfilesize)) -ge $(($filesize)) ]; then
-      atleast=$((atleast+1))
-    fi
-  fi
-  tk=$((tk+1))
-done
-
-rm -rf $logfile.*
-rm -rf $testname.*
-rm -rf $hotspotlog
-
-if [ $(($atleast)) -ge $(($numoffiles-1)) ]; then
-  echo $msgsuccess
-else
-  echo $msgfail
-  exit -1
-fi