8 files changed, 20 insertions, 20 deletions
diff --git a/java/examples/groups/H5Ex_G_Compact.java b/java/examples/groups/H5Ex_G_Compact.java
index 0ae98c9..313c9c7 100644
--- a/java/examples/groups/H5Ex_G_Compact.java
+++ b/java/examples/groups/H5Ex_G_Compact.java
@@ -59,9 +59,9 @@ public class H5Ex_G_Compact {
     }
 
     public static void CreateGroup() {
-        long file_id = -1;
-        long group_id = -1;
-        long fapl_id = -1;
+        long file_id = HDF5Constants.H5I_INVALID_HID;
+        long group_id = HDF5Constants.H5I_INVALID_HID;
+        long fapl_id = HDF5Constants.H5I_INVALID_HID;
         H5G_info_t ginfo;
         long size;
 
diff --git a/java/examples/groups/H5Ex_G_Corder.java b/java/examples/groups/H5Ex_G_Corder.java
index 61b5b7f..5df850e 100644
--- a/java/examples/groups/H5Ex_G_Corder.java
+++ b/java/examples/groups/H5Ex_G_Corder.java
@@ -24,10 +24,10 @@ public class H5Ex_G_Corder {
     private static String FILE = "H5Ex_G_Corder.h5";
 
     private static void CreateGroup() throws Exception {
-        long file_id = -1;
-        long group_id = -1;
-        long subgroup_id = -1;
-        long gcpl_id = -1;
+        long file_id = HDF5Constants.H5I_INVALID_HID;
+        long group_id = HDF5Constants.H5I_INVALID_HID;
+        long subgroup_id = HDF5Constants.H5I_INVALID_HID;
+        long gcpl_id = HDF5Constants.H5I_INVALID_HID;
         int status;
         H5G_info_t ginfo;
         int i;
diff --git a/java/examples/groups/H5Ex_G_Create.java b/java/examples/groups/H5Ex_G_Create.java
index 16b2028..9304538 100644
--- a/java/examples/groups/H5Ex_G_Create.java
+++ b/java/examples/groups/H5Ex_G_Create.java
@@ -24,8 +24,8 @@ public class H5Ex_G_Create {
     private static String GROUPNAME = "G1";
 
     private static void CreateGroup() {
-        long file_id = -1;
-        long group_id = -1;
+        long file_id = HDF5Constants.H5I_INVALID_HID;
+        long group_id = HDF5Constants.H5I_INVALID_HID;
 
         // Create a new file using default properties.
         try {
diff --git a/java/examples/groups/H5Ex_G_Intermediate.java b/java/examples/groups/H5Ex_G_Intermediate.java
index 130ec09..9f0eedd 100644
--- a/java/examples/groups/H5Ex_G_Intermediate.java
+++ b/java/examples/groups/H5Ex_G_Intermediate.java
@@ -30,9 +30,9 @@ public class H5Ex_G_Intermediate {
 
     private void CreateGroup() throws Exception {
 
-        long file_id = -1;
-        long group_id = -1;
-        long gcpl_id = -1;
+        long file_id = HDF5Constants.H5I_INVALID_HID;
+        long group_id = HDF5Constants.H5I_INVALID_HID;
+        long gcpl_id = HDF5Constants.H5I_INVALID_HID;
 
         try {
             // Create a new file_id using the default properties.
diff --git a/java/examples/groups/H5Ex_G_Iterate.java b/java/examples/groups/H5Ex_G_Iterate.java
index 47f55fe..af46712 100644
--- a/java/examples/groups/H5Ex_G_Iterate.java
+++ b/java/examples/groups/H5Ex_G_Iterate.java
@@ -56,7 +56,7 @@ public class H5Ex_G_Iterate {
     }
 
     private static void do_iterate() {
-        long file_id = -1;
+        long file_id = HDF5Constants.H5I_INVALID_HID;
 
         // Open a file using default properties.
         try {
diff --git a/java/examples/groups/H5Ex_G_Phase.java b/java/examples/groups/H5Ex_G_Phase.java
index b1c2afc..67a2f53 100644
--- a/java/examples/groups/H5Ex_G_Phase.java
+++ b/java/examples/groups/H5Ex_G_Phase.java
@@ -59,11 +59,11 @@ public class H5Ex_G_Phase {
     }
 
     private static void CreateGroup() {
-        long file_id = -1;
-        long group_id = -1;
-        long subgroup_id = -1;
-        long fapl_id = -1;
-        long gcpl_id = -1;
+        long file_id = HDF5Constants.H5I_INVALID_HID;
+        long group_id = HDF5Constants.H5I_INVALID_HID;
+        long subgroup_id = HDF5Constants.H5I_INVALID_HID;
+        long fapl_id = HDF5Constants.H5I_INVALID_HID;
+        long gcpl_id = HDF5Constants.H5I_INVALID_HID;
         H5G_info_t ginfo;
         String name = "G0"; // Name of subgroup_id
         int i;
diff --git a/java/examples/groups/H5Ex_G_Traverse.java b/java/examples/groups/H5Ex_G_Traverse.java
index 3410c63..5378778 100644
--- a/java/examples/groups/H5Ex_G_Traverse.java
+++ b/java/examples/groups/H5Ex_G_Traverse.java
@@ -42,7 +42,7 @@ public class H5Ex_G_Traverse {
     public static H5L_iterate_cb iter_cb = new H5L_iter_callbackT();
 
     private static void OpenGroup() {
-        long file_id = -1;
+        long file_id = HDF5Constants.H5I_INVALID_HID;
         H5O_info_t infobuf;
         opdata od = new opdata();
 
diff --git a/java/examples/groups/H5Ex_G_Visit.java b/java/examples/groups/H5Ex_G_Visit.java
index 0e935de..9cc8ecd 100644
--- a/java/examples/groups/H5Ex_G_Visit.java
+++ b/java/examples/groups/H5Ex_G_Visit.java
@@ -46,7 +46,7 @@ public class H5Ex_G_Visit {
 
     private void VisitGroup() throws Exception {
 
-        long file_id = -1;
+        long file_id = HDF5Constants.H5I_INVALID_HID;
 
         try {
             // Open file