data: indexing java

* expanded appsettings to include java specific stuff
* added java indexer as separate project that can be build via its build script
* added dependencies for java indexer to the setup folder
* added license files for these dependencies.
* added sample project for java. this is just to test java on other machines and can be removed again in the future.
* the java parser test suite is currently uncommented because java is not running on every machine.
* added some more node types
* removed TokenComponentAccess::AccessType and replaced all its usages by using AccessKind
* moved access components from edges to nodes
* using recordReference of ParserClient for java
* removed recording access specifier of inheritance edges.
* added styles for new node types

java_indexer/src/io/coati/HeapDumper.java

@@ -0,0 +1,61 @@
+package io.coati;
+
+import javax.management.MBeanServer;
+import java.lang.management.ManagementFactory;
+import com.sun.management.HotSpotDiagnosticMXBean;
+
+public class HeapDumper {
+    // 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
+     \*/
+    static void dumpHeap(String fileName, boolean live) {
+        // initialize hotspot diagnostic MBean
+        initHotspotMBean();
+        try {
+            hotspotMBean.dumpHeap(fileName, live);
+        } catch (RuntimeException re) {
+            throw re;
+        } catch (Exception exp) {
+            throw new RuntimeException(exp);
+        }
+    }
+
+    // initialize the hotspot diagnostic MBean field
+    private static void initHotspotMBean() {
+        if (hotspotMBean == null) {
+            synchronized (HeapDumper.class) {
+                if (hotspotMBean == null) {
+                    hotspotMBean = getHotspotMBean();
+                }
+            }
+        }
+    }
+
+    // get the hotspot diagnostic MBean from the
+    // platform MBean server
+    private static HotSpotDiagnosticMXBean getHotspotMBean() {
+        try {
+            MBeanServer server = ManagementFactory.getPlatformMBeanServer();
+            HotSpotDiagnosticMXBean bean = 
+                ManagementFactory.newPlatformMXBeanProxy(server,
+                HOTSPOT_BEAN_NAME, HotSpotDiagnosticMXBean.class);
+            return bean;
+        } catch (RuntimeException re) {
+            throw re;
+        } catch (Exception exp) {
+            throw new RuntimeException(exp);
+        }
+    }
+}