--- a/jdk/src/solaris/classes/sun/tools/attach/LinuxVirtualMachine.java	Tue Jun 01 10:52:42 2010 +0800
+++ b/jdk/src/solaris/classes/sun/tools/attach/LinuxVirtualMachine.java	Wed Jun 02 09:35:32 2010 +0100
@@ -37,6 +37,8 @@
  * Linux implementation of HotSpotVirtualMachine
  */
 public class LinuxVirtualMachine extends HotSpotVirtualMachine {
+    // temp directory for socket file
+    private static final String tmpdir = System.getProperty("java.io.tmpdir");
 
     // Indicates if this machine uses the old LinuxThreads
     static boolean isLinuxThreads;
@@ -260,7 +262,7 @@
 
     // Return the socket file for the given process.
     // Checks working directory of process for .java_pid<pid>. If not
-    // found it looks in /tmp.
+    // found it looks in temp directory.
     private String findSocketFile(int pid) {
         // First check for a .java_pid<pid> file in the working directory
         // of the target process
@@ -268,20 +270,17 @@
         String path = "/proc/" + pid + "/cwd/" + fn;
         File f = new File(path);
         if (!f.exists()) {
-            // Not found, so try /tmp
-            path = "/tmp/" + fn;
-            f = new File(path);
-            if (!f.exists()) {
-                return null;            // not found
-            }
+            // Not found, so try temp directory
+            f = new File(tmpdir, fn);
+            path = f.exists() ? f.getPath() : null;
         }
         return path;
     }
 
     // On Solaris/Linux a simple handshake is used to start the attach mechanism
     // if not already started. The client creates a .attach_pid<pid> file in the
-    // target VM's working directory (or /tmp), and the SIGQUIT handler checks
-    // for the file.
+    // target VM's working directory (or temp directory), and the SIGQUIT handler
+    // checks for the file.
     private File createAttachFile(int pid) throws IOException {
         String fn = ".attach_pid" + pid;
         String path = "/proc/" + pid + "/cwd/" + fn;
@@ -289,8 +288,7 @@
         try {
             f.createNewFile();
         } catch (IOException x) {
-            path = "/tmp/" + fn;
-            f = new File(path);
+            f = new File(tmpdir, fn);
             f.createNewFile();
         }
         return f;

--- a/jdk/src/solaris/classes/sun/tools/attach/SolarisVirtualMachine.java	Tue Jun 01 10:52:42 2010 +0800
+++ b/jdk/src/solaris/classes/sun/tools/attach/SolarisVirtualMachine.java	Wed Jun 02 09:35:32 2010 +0100
@@ -38,6 +38,11 @@
  * Solaris implementation of HotSpotVirtualMachine.
  */
 public class SolarisVirtualMachine extends HotSpotVirtualMachine {
+    // Use /tmp instead of /var/tmp on Solaris as /tmp is the default used by
+    // HotSpot when the property is not set on the command line.
+    private static final String tmpdir1 = System.getProperty("java.io.tmpdir");
+    private static final String tmpdir =
+        (tmpdir1.equals("/var/tmp") || tmpdir1.equals("/var/tmp/")) ? "/tmp" : tmpdir1;
 
     // door descriptor;
     private int fd = -1;
@@ -187,7 +192,7 @@
     }
 
     // The door is attached to .java_pid<pid> in the target VM's working
-    // directory or /tmp.
+    // directory or temporary directory.
     private int openDoor(int pid) throws IOException {
         // First check for a .java_pid<pid> file in the working directory
         // of the target process
@@ -196,7 +201,7 @@
         try {
             fd = open(path);
         } catch (FileNotFoundException fnf) {
-            path = "/tmp/" + fn;
+            path = tmpdir + "/" + fn;
             fd = open(path);
         }
 
@@ -213,8 +218,8 @@
 
     // On Solaris/Linux a simple handshake is used to start the attach mechanism
     // if not already started. The client creates a .attach_pid<pid> file in the
-    // target VM's working directory (or /tmp), and the SIGQUIT handler checks
-    // for the file.
+    // target VM's working directory (or temporary directory), and the SIGQUIT
+    // handler checks for the file.
     private File createAttachFile(int pid) throws IOException {
         String fn = ".attach_pid" + pid;
         String path = "/proc/" + pid + "/cwd/" + fn;
@@ -222,8 +227,7 @@
         try {
             f.createNewFile();
         } catch (IOException x) {
-            path = "/tmp/" + fn;
-            f = new File(path);
+            f = new File(tmpdir, fn);
             f.createNewFile();
         }
         return f;