diff --git a/bindings/java/src/net/hyperic/sigar/Sigar.java b/bindings/java/src/net/hyperic/sigar/Sigar.java
index fda5f857..acaef3ea 100644
--- a/bindings/java/src/net/hyperic/sigar/Sigar.java
+++ b/bindings/java/src/net/hyperic/sigar/Sigar.java
@@ -139,17 +139,6 @@ public class Sigar implements SigarProxy {
         }
     }
 
-    /**
-     * Convenience method to keep a sigar instance alive.
-     * This instance is safe to share between threads.
-     */
-    public static synchronized SigarProxy getInstance() {
-        if (instance == null) {
-            instance = new SynchronizedSigar();
-        }
-        return instance;
-    }
-
     protected void finalize() {
         close();
     }
diff --git a/bindings/java/src/net/hyperic/sigar/SynchronizedSigar.java b/bindings/java/src/net/hyperic/sigar/SynchronizedSigar.java
deleted file mode 100644
index c66b5cf8..00000000
--- a/bindings/java/src/net/hyperic/sigar/SynchronizedSigar.java
+++ /dev/null
@@ -1,367 +0,0 @@
-package net.hyperic.sigar;
-
-import java.util.List;
-import java.util.Map;
-
-/**
- * Safely share a single Sigar instance between multiple threads.
- * The Sigar object is thread-safe given that each thread has its
- * own Sigar instance.  In order to share a single Sigar instance
- * the methods implemented here are synchronized.  All data returned
- * by the Sigar methods is read-only and hence thread-safe.
- */
-public class SynchronizedSigar implements SigarProxy {
-
-    private Sigar sigar;
-
-    public SynchronizedSigar() {
-        this.sigar = new Sigar();
-    }
-
-    public synchronized long getPid()
-    {
-        return this.sigar.getPid();
-    }
-
-    public synchronized long getServicePid(String name)
-        throws SigarException
-    {
-        return this.sigar.getServicePid(name);
-    }
-
-    public synchronized Mem getMem()
-        throws SigarException
-    {
-        return this.sigar.getMem();
-    }
-
-    public synchronized Swap getSwap()
-        throws SigarException
-    {
-        return this.sigar.getSwap();
-    }
-
-    public synchronized Cpu getCpu()
-        throws SigarException
-    {
-        return this.sigar.getCpu();
-    }
-
-    public synchronized CpuPerc getCpuPerc()
-        throws SigarException
-    {
-        return this.sigar.getCpuPerc();
-    }
-
-    public synchronized Uptime getUptime()
-        throws SigarException
-    {
-        return this.sigar.getUptime();
-    }
-
-    public synchronized ResourceLimit getResourceLimit()
-        throws SigarException
-    {
-        return this.sigar.getResourceLimit();
-    }
-
-    public synchronized double[] getLoadAverage()
-        throws SigarException
-    {
-        return this.sigar.getLoadAverage();
-    }
-
-    public synchronized long[] getProcList()
-        throws SigarException
-    {
-        return this.sigar.getProcList();
-    }
-
-    public synchronized ProcStat getProcStat()
-        throws SigarException
-    {
-        return this.sigar.getProcStat();
-    }
-
-    public synchronized ProcMem getProcMem(long pid)
-        throws SigarException
-    {
-        return this.sigar.getProcMem(pid);
-    }
-
-    public synchronized ProcMem getProcMem(String pid)
-        throws SigarException
-    {
-        return this.sigar.getProcMem(pid);
-    }
-
-    public synchronized ProcState getProcState(long pid)
-        throws SigarException
-    {
-        return this.sigar.getProcState(pid);
-    }
-
-    public synchronized ProcState getProcState(String pid)
-        throws SigarException
-    {
-        return this.sigar.getProcState(pid);
-    }
-
-    public synchronized ProcTime getProcTime(long pid)
-        throws SigarException
-    {
-        return this.sigar.getProcTime(pid);
-    }
-
-    public synchronized ProcTime getProcTime(String pid)
-        throws SigarException
-    {
-        return this.sigar.getProcTime(pid);
-    }
-
-    public synchronized ProcCpu getProcCpu(long pid)
-        throws SigarException
-    {
-        return this.sigar.getProcCpu(pid);
-    }
-
-    public synchronized ProcCpu getProcCpu(String pid)
-        throws SigarException
-    {
-        return this.sigar.getProcCpu(pid);
-    }
-
-    public synchronized MultiProcCpu getMultiProcCpu(String query)
-        throws SigarException
-    {
-        return this.sigar.getMultiProcCpu(query);
-    }
-
-    public ProcMem getMultiProcMem(String query)
-        throws SigarException
-    {
-        return this.sigar.getMultiProcMem(query);
-    }
-
-    public synchronized ProcCred getProcCred(long pid)
-        throws SigarException
-    {
-        return this.sigar.getProcCred(pid);
-    }
-
-    public synchronized ProcCred getProcCred(String pid)
-        throws SigarException
-    {
-        return this.sigar.getProcCred(pid);
-    }
-
-    public synchronized ProcCredName getProcCredName(long pid)
-        throws SigarException
-    {
-        return this.sigar.getProcCredName(pid);
-    }
-
-    public synchronized ProcCredName getProcCredName(String pid)
-        throws SigarException
-    {
-        return this.sigar.getProcCredName(pid);
-    }
-
-    public synchronized ProcFd getProcFd(long pid)
-        throws SigarException
-    {
-        return this.sigar.getProcFd(pid);
-    }
-
-    public synchronized ProcFd getProcFd(String pid)
-        throws SigarException
-    {
-        return this.sigar.getProcFd(pid);
-    }
-
-    public synchronized ProcExe getProcExe(long pid)
-        throws SigarException
-    {
-        return this.sigar.getProcExe(pid);
-    }
-
-    public synchronized ProcExe getProcExe(String pid)
-        throws SigarException
-    {
-        return this.sigar.getProcExe(pid);
-    }
-
-    public synchronized String[] getProcArgs(long pid)
-        throws SigarException
-    {
-        return this.sigar.getProcArgs(pid);
-    }
-
-    public synchronized String[] getProcArgs(String pid)
-        throws SigarException
-    {
-        return this.sigar.getProcArgs(pid);
-    }
-
-    public synchronized Map getProcEnv(long pid)
-        throws SigarException
-    {
-        return this.sigar.getProcEnv(pid);
-    }
-
-    public synchronized Map getProcEnv(String pid)
-        throws SigarException
-    {
-        return this.sigar.getProcEnv(pid);
-    }
-
-    public synchronized String getProcEnv(long pid, String key)
-        throws SigarException
-    {
-        return this.sigar.getProcEnv(pid, key);
-    }
-
-    public synchronized String getProcEnv(String pid, String key)
-        throws SigarException
-    {
-        return this.sigar.getProcEnv(pid, key);
-    }
-
-    public synchronized List getProcModules(long pid)
-        throws SigarException
-    {
-        return this.sigar.getProcModules(pid);
-    }
-
-    public synchronized List getProcModules(String pid)
-        throws SigarException
-    {
-        return this.sigar.getProcModules(pid);
-    }
-
-    public synchronized long getProcPort(int protocol, long port)
-        throws SigarException
-    {
-        return this.sigar.getProcPort(protocol, port);
-    }
-
-    public synchronized long getProcPort(String protocol, String port)
-        throws SigarException
-    {
-        return this.sigar.getProcPort(protocol, port);
-    }
-
-    public synchronized FileSystem[] getFileSystemList()
-        throws SigarException
-    {
-        return this.sigar.getFileSystemList();
-    }
-
-    public synchronized FileSystemMap getFileSystemMap()
-        throws SigarException
-    {
-        return this.sigar.getFileSystemMap();
-    }
-
-    public synchronized FileSystemUsage getMountedFileSystemUsage(String name)
-        throws SigarException
-    {
-        return this.sigar.getMountedFileSystemUsage(name);
-    }
-
-    public synchronized FileSystemUsage getFileSystemUsage(String name)
-        throws SigarException
-    {
-        return this.sigar.getFileSystemUsage(name);
-    }
-
-    public synchronized FileInfo getFileInfo(String name)
-        throws SigarException
-    {
-        return this.sigar.getFileInfo(name);
-    }
-
-    public synchronized FileInfo getLinkInfo(String name)
-        throws SigarException
-    {
-        return this.sigar.getLinkInfo(name);
-    }
-
-    public synchronized DirStat getDirStat(String name)
-        throws SigarException
-    {
-        return this.sigar.getDirStat(name);
-    }
-
-    public synchronized DirUsage getDirUsage(String name)
-        throws SigarException
-    {
-        return this.sigar.getDirUsage(name);
-    }
-
-    public synchronized CpuInfo[] getCpuInfoList()
-        throws SigarException
-    {
-        return this.sigar.getCpuInfoList();
-    }
-
-    public synchronized Cpu[] getCpuList()
-        throws SigarException
-    {
-        return this.sigar.getCpuList();
-    }
-
-    public synchronized CpuPerc[] getCpuPercList()
-        throws SigarException
-    {
-        return this.sigar.getCpuPercList();
-    }
-
-    public synchronized NetRoute[] getNetRouteList()
-        throws SigarException
-    {
-        return this.sigar.getNetRouteList();
-    }
-
-    public synchronized NetInterfaceConfig getNetInterfaceConfig(String name)
-        throws SigarException
-    {
-        return this.sigar.getNetInterfaceConfig(name);
-    }
-
-    public synchronized NetInterfaceStat getNetInterfaceStat(String name)
-        throws SigarException
-    {
-        return this.sigar.getNetInterfaceStat(name);
-    }
-
-    public synchronized String[] getNetInterfaceList()
-        throws SigarException
-    {
-        return this.sigar.getNetInterfaceList();
-    }
-
-    public synchronized NetStat getNetStat()
-        throws SigarException
-    {
-        return new NetStat(this.sigar);
-    }
-
-    public synchronized Who[] getWhoList()
-        throws SigarException
-    {
-        return this.sigar.getWhoList();
-    }
-
-    public synchronized NetInfo getNetInfo()
-        throws SigarException
-    {
-        return this.sigar.getNetInfo();
-    }
-
-    public synchronized String getFQDN()
-        throws SigarException
-    {
-        return this.sigar.getFQDN();
-    }
-}
diff --git a/bindings/java/src/net/hyperic/sigar/SynchronizedSigarProxyCache.java b/bindings/java/src/net/hyperic/sigar/SynchronizedSigarProxyCache.java
deleted file mode 100644
index e7e16e0f..00000000
--- a/bindings/java/src/net/hyperic/sigar/SynchronizedSigarProxyCache.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package net.hyperic.sigar;
-
-import java.lang.reflect.Method;
-
-public class SynchronizedSigarProxyCache
-    extends SigarProxyCache {
-
-    private static Object lock = new Object();
-    private static SigarProxy instance = null;
-
-    public static SigarProxy getInstance()
-        throws SigarException {
-
-        synchronized (lock) {
-            if (instance == null) {
-                instance = SigarProxyCache.newInstance(new Sigar());
-            }
-        }
-
-        return instance;
-    }
-
-    public SynchronizedSigarProxyCache(Sigar sigar, int expire) {
-        super(sigar, expire);
-    }
-
-    //all Objects returned are read-only.
-    public synchronized Object invoke(Object proxy, Method method, Object[] args)
-        throws SigarException, SigarNotImplementedException {
-
-        return super.invoke(proxy, method, args);
-    }
-}
diff --git a/bindings/java/src/net/hyperic/sigar/test/TestInstance.java b/bindings/java/src/net/hyperic/sigar/test/TestInstance.java
deleted file mode 100644
index 1499a932..00000000
--- a/bindings/java/src/net/hyperic/sigar/test/TestInstance.java
+++ /dev/null
@@ -1,30 +0,0 @@
-package net.hyperic.sigar.test;
-
-import net.hyperic.sigar.Sigar;
-import net.hyperic.sigar.SigarException;
-
-public class TestInstance extends SigarTestCase {
-
-    public TestInstance(String name) {
-        super(name);
-    }
-
-    public void testCreate() throws Exception {
-        String fqdn = Sigar.getInstance().getFQDN();
-        traceln("\nfqdn=" + fqdn);
-
-        assertTrue(true);
-
-        Sigar sigar = new Sigar();
-        sigar.close();
-
-        try {
-            sigar.getFQDN();
-            //sigar has been closed so we should not get this far.
-            assertTrue(false);
-        } catch (SigarException e) {
-            assertTrue(true);
-            traceln(e.getMessage());
-        }
-    }
-}