#64411 - Provide JigSaw modules

- use classpath-build for Java 8, otherwise use modulepath
- save module-info classes to source, when using Java 9+ environment
- rename example packages - otherwise package clashes occured in the tests
- move agile encryption from ooxml to main.
  remove EncryptionInfo XmlBeans and schema and use custom xml marshalling
- move ooxml test classes which reside in the same package as their tested main class
- rename base test classes to "BaseTest..." - temporarily I've used a light version of the main test classes to test scratchpad / ooxml
- build.xml - fixed the Rhino javascript errors of the dependency-macros
- DrawTextParagraph - fixed StringIndexOutOfBounds when logging set to debug level
- use JigSaw provider interface (= Java ServiceLoader), i.e. it wasn't possible (without openening everything), to access ooxml factory classes from main factory stub

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1880164 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 62 insertions, 0 deletions

diff --git a/src/integrationtest/org/apache/poi/stress/HeapDump.java b/src/integrationtest/org/apache/poi/stress/HeapDump.java
new file mode 100644
index 0000000000..59a3832b59
--- /dev/null
+++ b/src/integrationtest/org/apache/poi/stress/HeapDump.java
@@ -0,0 +1,62 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+==================================================================== */
+package org.apache.poi.stress;
+
+import java.io.IOException;
+import java.lang.management.ManagementFactory;
+
+import com.sun.management.HotSpotDiagnosticMXBean;
+
+public class HeapDump {
+    // This is the name of the HotSpot Diagnostic MBean
+    private static final String HOTSPOT_BEAN_NAME =
+            "com.sun.management:type=HotSpotDiagnostic";
+
+    // field to store the hotspot diagnostic MBean
+    private static volatile HotSpotDiagnosticMXBean hotspotMBean;
+
+    /**
+     * Call this method from your application whenever you
+     * want to dump the heap snapshot into a file.
+     *
+     * @param fileName name of the heap dump file
+     * @param live flag that tells whether to dump
+     *             only the live objects
+     */
+    public static void dumpHeap(String fileName, boolean live) throws IOException {
+        // initialize hotspot diagnostic MBean
+        initHotspotMBean();
+        hotspotMBean.dumpHeap(fileName, live);
+    }
+
+    // initialize the hotspot diagnostic MBean field
+    private static void initHotspotMBean() throws IOException {
+        if (hotspotMBean == null) {
+            synchronized (HeapDump.class) {
+                if (hotspotMBean == null) {
+                    hotspotMBean = getHotspotMBean();
+                }
+            }
+        }
+    }
+
+    // get the hotspot diagnostic MBean from the platform MBean server
+    private static HotSpotDiagnosticMXBean getHotspotMBean() throws IOException {
+        return ManagementFactory.newPlatformMXBeanProxy(ManagementFactory.getPlatformMBeanServer(),
+                        HOTSPOT_BEAN_NAME, HotSpotDiagnosticMXBean.class);
+    }
+}