diff --git a/0002-Fix-have-snprintf-error.patch b/0002-Fix-have-snprintf-error.patch
deleted file mode 100644
index cafdf4d..0000000
--- a/0002-Fix-have-snprintf-error.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -Nrup a/Makefile b/Makefile
---- a/Makefile	2017-10-23 18:03:40.237177646 -0400
-+++ b/Makefile	2017-10-23 18:06:20.060683518 -0400
-@@ -292,7 +292,7 @@ GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fn
- # January's first Monday when a "%V" format is used and January 1
- # falls on a Friday, Saturday, or Sunday.
- 
--CFLAGS=
-+CFLAGS= -DHAVE_SNPRINTF=1
- 
- # Linker flags.  Default to $(LFLAGS) for backwards compatibility
- # to release 2012h and earlier.
diff --git a/javazic-fixup.patch b/javazic-fixup.patch
deleted file mode 100644
index 8b19ef4..0000000
--- a/javazic-fixup.patch
+++ /dev/null
@@ -1,34 +0,0 @@
---- sun/util/calendar/LocalGregorianCalendar.java.keiths	2007-09-07 14:48:19.000000000 -0700
-+++ sun/util/calendar/LocalGregorianCalendar.java	2007-09-07 14:52:58.000000000 -0700
-@@ -120,8 +120,7 @@ public class LocalGregorianCalendar exte
-     static LocalGregorianCalendar getLocalGregorianCalendar(String name) {
- 	Properties calendarProps = null;
- 	try {
--	    String homeDir = (String) AccessController.doPrivileged(
--				new sun.security.action.GetPropertyAction("java.home"));
-+  	    String homeDir = (String) System.getProperty("java.home");
- 	    final String fname = homeDir + File.separator + "lib" + File.separator
- 				 + "calendars.properties";
- 	    calendarProps = (Properties) AccessController.doPrivileged(new PrivilegedExceptionAction() {
---- sun/util/calendar/ZoneInfoFile.java.keiths	2007-09-07 14:54:58.000000000 -0700
-+++ sun/util/calendar/ZoneInfoFile.java	2007-09-07 14:55:36.000000000 -0700
-@@ -1021,8 +1021,7 @@ public class ZoneInfoFile {
- 	byte[] buffer = null;
- 
- 	try {
--	    String zi_dir = (String) AccessController.doPrivileged(
--			        new sun.security.action.GetPropertyAction("user.zoneinfo.dir"));
-+	    String zi_dir = (String) System.getProperty("user.zoneinfo.dir");
- 	    File dir = null;
- 	    if (zi_dir != null)
- 	      dir = new File(zi_dir);
-@@ -1035,8 +1034,7 @@ public class ZoneInfoFile {
- 	    }
- 
- 	    if (dir == null) {
--	      String homeDir = (String) AccessController.doPrivileged(
--				new sun.security.action.GetPropertyAction("java.home"));
-+	      String homeDir = (String) System.getProperty("java.home");
- 	      zi_dir = homeDir + File.separator + "lib" + File.separator
- 		+ "zi";
- 	    }
diff --git a/tzdata.spec b/tzdata.spec
index 64fb306..16936f7 100644
--- a/tzdata.spec
+++ b/tzdata.spec
@@ -1,14 +1,12 @@
 Name:		tzdata
 Version:	2019b
-Release:	8
+Release:	9
 Summary:	Timezone data
 License:	Public Domain
 URL:		https://www.iana.org/time-zones
 Source0:	https://data.iana.org/time-zones/releases/tzdata%{version}.tar.gz
 Source1:	https://data.iana.org/time-zones/releases/tzcode%{version}.tar.gz
 
-Patch002:	0002-Fix-have-snprintf-error.patch
-
 Patch6000:	backport-Fiji-observes-DST-from-2019-11-10-to-2020-01-12.patch
 Patch6001:	backport-Norfolk-Island-starts-observing-Australian-style-DST.patch
 Patch6002:	backport-Rename-America-Godthab-to-America-Nuuk.patch
@@ -33,7 +31,6 @@ the world.
 Summary:	Timezone data for Java
 Source3:	javazic.tar.gz
 Source4:	javazic-1.8-37392f2f5d59.tar.xz
-Patch100:	javazic-fixup.patch
 
 %description java
 This package contains timezone information for use by Java runtimes.
@@ -41,8 +38,6 @@ This package contains timezone information for use by Java runtimes.
 %prep
 %setup -q -c -a 1
 
-%patch002 -p1
-
 %patch6000 -p1
 %patch6001 -p1
 %patch6002 -p1
@@ -61,7 +56,6 @@ rm tzdata.zi
 mkdir javazic
 tar zxf %{SOURCE3} -C javazic
 cd javazic
-%patch100
 
 mv sun rht
 find . -type f -name '*.java' -print0 \
@@ -124,6 +118,12 @@ install -p -m 644 tzdb.dat $RPM_BUILD_ROOT%{_datadir}/javazi-1.8/
 %{_datadir}/javazi-1.8
 
 %changelog
+* Thu Jan 9 2020 liuchao<liuchao173@huawei.com> - 2019b-9
+- Type:recommended
+- ID:NA
+- SUG:NA
+- DESC:remove useless patches
+
 * Wed Jan 8 2020 liuchao<liuchao173@huawei.com> - 2019b-8
 - Type:bugfix
 - ID:NA