2006-07-02 Andrew John Hughes <gnu_andrew@member.fsf.org>generics-merge-20060702

	* NEWS:
	Updated to include VMCompilationMXBeanImpl.
	* doc/vmintegration.texinfo:
	Likewise, along with update to VMMemoryMXBeanImpl
	as below.
	* examples/gnu/classpath/examples/management/TestCompilation.java,
	* gnu/java/lang/management/CompilationMXBeanImpl.java,
	* java/lang/management/CompilationMXBeanImpl.java:
	New files.
	* java/lang/management/ManagementFactory.java:
	(getCompilationMXBean()): Implemented.
	* vm/reference/gnu/java/lang/management/VMCompilationMXBeanImpl.java:
	New file.
	* vm/reference/gnu/java/lang/management/VMMemoryMXBeanImpl.java:
	(getHeapMemoryUsage()): Added default implementation.

1 files changed, 26 insertions, 0 deletions

diff --git a/java/lang/management/ManagementFactory.java b/java/lang/management/ManagementFactory.java
index 915ca50c1..6e8010089 100644
--- a/java/lang/management/ManagementFactory.java
+++ b/java/lang/management/ManagementFactory.java
@@ -37,7 +37,10 @@ exception statement from your version. */
 
 package java.lang.management;
 
+import gnu.classpath.SystemProperties;
+
 import gnu.java.lang.management.ClassLoadingMXBeanImpl;
+import gnu.java.lang.management.CompilationMXBeanImpl;
 import gnu.java.lang.management.OperatingSystemMXBeanImpl;
 import gnu.java.lang.management.MemoryMXBeanImpl;
 import gnu.java.lang.management.RuntimeMXBeanImpl;
@@ -89,6 +92,11 @@ public class ManagementFactory
   private static MemoryMXBean memoryBean;
 
   /**
+   * The compilation bean (may remain null).
+   */
+  private static CompilationMXBean compilationBean;
+
+  /**
    * Private constructor to prevent instance creation.
    */
   private ManagementFactory() {}
@@ -163,4 +171,22 @@ public class ManagementFactory
     return memoryBean;
   }
 
+  /**
+   * Returns the compilation bean for the running
+   * virtual machine, if supported.  Otherwise,
+   * it returns <code>null</code>.
+   *
+   * @return an instance of {@link CompilationMXBean} for
+   *         this virtual machine, or <code>null</code>
+   *         if the virtual machine doesn't include
+   *         a Just-In-Time (JIT) compiler.
+   */
+  public static CompilationMXBean getCompilationMXBean()
+  {
+    if (compilationBean == null &&
+	SystemProperties.getProperty("gnu.java.compiler.name") != null)
+      compilationBean = new CompilationMXBeanImpl();
+    return compilationBean;
+  }
+
 }