4 files changed, 12 insertions, 12 deletions
diff --git a/java/examples/datasets/Makefile.am b/java/examples/datasets/Makefile.am
index 8498cff..41ba6d1 100644
--- a/java/examples/datasets/Makefile.am
+++ b/java/examples/datasets/Makefile.am
@@ -23,10 +23,10 @@ include $(top_srcdir)/config/commence.am
 # Mark this directory as part of the JNI API
 JAVA_API=yes
 
-JAVAROOT = $(top_builddir)/.classes
+JAVAROOT = .classes
 
 classes:
-	$(MKDIR_P) $(@D)/$(JAVAROOT)
+	test -d $(@D)/$(JAVAROOT) || $(MKDIR_P) $(@D)/$(JAVAROOT)
 
 pkgpath = examples/datasets
 hdfjarfile = jar$(PACKAGE_TARNAME)-$(PACKAGE_VERSION).jar
@@ -71,7 +71,7 @@ TEST_SCRIPT = $(check_SCRIPTS)
 CLEANFILES = classnoinst.stamp $(jarfile) $(JAVAROOT)/$(pkgpath)/*.class runExample.sh
 
 clean:
-	rm -rf $(JAVAROOT)
+	rm -rf $(JAVAROOT)/*
 	rm -f $(jarfile)
 	rm -f classnoinst.stamp
 
diff --git a/java/examples/datatypes/Makefile.am b/java/examples/datatypes/Makefile.am
index fedfec3..7d95a56 100644
--- a/java/examples/datatypes/Makefile.am
+++ b/java/examples/datatypes/Makefile.am
@@ -23,10 +23,10 @@ include $(top_srcdir)/config/commence.am
 # Mark this directory as part of the JNI API
 JAVA_API=yes
 
-JAVAROOT = $(top_builddir)/.classes
+JAVAROOT = .classes
 
 classes:
-	$(MKDIR_P) $(@D)/$(JAVAROOT)
+	test -d $(@D)/$(JAVAROOT) || $(MKDIR_P) $(@D)/$(JAVAROOT)
 
 pkgpath = examples/datatypes
 hdfjarfile = jar$(PACKAGE_TARNAME)-$(PACKAGE_VERSION).jar
@@ -71,7 +71,7 @@ TEST_SCRIPT = $(check_SCRIPTS)
 CLEANFILES = classnoinst.stamp $(jarfile) $(JAVAROOT)/$(pkgpath)/*.class runExample.sh
 
 clean:
-	rm -rf $(JAVAROOT)
+	rm -rf $(JAVAROOT)/*
 	rm -f $(jarfile)
 	rm -f classnoinst.stamp
 
diff --git a/java/examples/groups/Makefile.am b/java/examples/groups/Makefile.am
index 181d2d9..be15b42 100644
--- a/java/examples/groups/Makefile.am
+++ b/java/examples/groups/Makefile.am
@@ -23,10 +23,10 @@ include $(top_srcdir)/config/commence.am
 # Mark this directory as part of the JNI API
 JAVA_API=yes
 
-JAVAROOT = $(top_builddir)/.classes
+JAVAROOT = .classes
 
 classes:
-	$(MKDIR_P) $(@D)/$(JAVAROOT)
+	test -d $(@D)/$(JAVAROOT) || $(MKDIR_P) $(@D)/$(JAVAROOT)
 
 pkgpath = examples/groups
 hdfjarfile = jar$(PACKAGE_TARNAME)-$(PACKAGE_VERSION).jar
@@ -61,7 +61,7 @@ TEST_SCRIPT = $(check_SCRIPTS)
 CLEANFILES = classnoinst.stamp $(jarfile) $(JAVAROOT)/$(pkgpath)/*.class runExample.sh
 
 clean:
-	rm -rf $(JAVAROOT)
+	rm -rf $(JAVAROOT)/*
 	rm -f $(jarfile)
 	rm -f classnoinst.stamp
 
diff --git a/java/examples/intro/Makefile.am b/java/examples/intro/Makefile.am
index af4022b..3d5757a 100644
--- a/java/examples/intro/Makefile.am
+++ b/java/examples/intro/Makefile.am
@@ -23,10 +23,10 @@ include $(top_srcdir)/config/commence.am
 # Mark this directory as part of the JNI API
 JAVA_API=yes
 
-JAVAROOT = $(top_builddir)/.classes
+JAVAROOT = .classes
 
 classes:
-	$(MKDIR_P) $(@D)/$(JAVAROOT)
+	test -d $(@D)/$(JAVAROOT) || $(MKDIR_P) $(@D)/$(JAVAROOT)
 
 pkgpath = examples/intro
 hdfjarfile = jar$(PACKAGE_TARNAME)-$(PACKAGE_VERSION).jar
@@ -60,7 +60,7 @@ TEST_SCRIPT = $(check_SCRIPTS)
 CLEANFILES = classnoinst.stamp $(jarfile) $(JAVAROOT)/$(pkgpath)/*.class runExample.sh
 
 clean:
-	rm -rf $(JAVAROOT)
+	rm -rf $(JAVAROOT)/*
 	rm -f $(jarfile)
 	rm -f classnoinst.stamp