diff --git a/0001-Avoid-presizing-arrays.patch b/0001-Avoid-presizing-arrays.patch
new file mode 100644
index 0000000..b7b18a3
--- /dev/null
+++ b/0001-Avoid-presizing-arrays.patch
@@ -0,0 +1,49 @@
+From c6497b79ee766206ba27c6b33391e1d5e572e662 Mon Sep 17 00:00:00 2001
+From: Michael Simacek <msimacek@redhat.com>
+Date: Wed, 2 May 2018 15:22:08 +0200
+Subject: [PATCH] Avoid presizing arrays
+
+Backported version of:
+https://github.com/google/guava/commit/f89ece5721b2f637fe754937ff1f3c86d80bb196
+
+Ignoring GWT, as we don't ship it. Using ArrayList, because
+ImmutableLongArray is not available.
+---
+ .../common/util/concurrent/AtomicDoubleArray.java     | 11 ++++++-----
+ 1 file changed, 6 insertions(+), 5 deletions(-)
+
+diff --git a/guava/src/com/google/common/util/concurrent/AtomicDoubleArray.java b/guava/src/com/google/common/util/concurrent/AtomicDoubleArray.java
+index e939672..23a2535 100644
+--- a/guava/src/com/google/common/util/concurrent/AtomicDoubleArray.java
++++ b/guava/src/com/google/common/util/concurrent/AtomicDoubleArray.java
+@@ -17,7 +17,10 @@ import static java.lang.Double.doubleToRawLongBits;
+ import static java.lang.Double.longBitsToDouble;
+ 
+ import com.google.common.annotations.GwtIncompatible;
++import com.google.common.primitives.Longs;
+ import com.google.errorprone.annotations.CanIgnoreReturnValue;
++import java.util.ArrayList;
++import java.util.List;
+ import java.util.concurrent.atomic.AtomicLongArray;
+ 
+ /**
+@@ -261,13 +264,11 @@ public class AtomicDoubleArray implements java.io.Serializable {
+       throws java.io.IOException, ClassNotFoundException {
+     s.defaultReadObject();
+ 
+-    // Read in array length and allocate array
+     int length = s.readInt();
+-    this.longs = new AtomicLongArray(length);
+-
+-    // Read in all elements in the proper order.
++    List<Long> builder = new ArrayList<Long>();
+     for (int i = 0; i < length; i++) {
+-      set(i, s.readDouble());
++      builder.add(doubleToRawLongBits(s.readDouble()));
+     }
++    this.longs = new AtomicLongArray(Longs.toArray(builder));
+   }
+ }
+-- 
+2.17.0
+
diff --git a/guava20.spec b/guava20.spec
new file mode 100644
index 0000000..c4e6126
--- /dev/null
+++ b/guava20.spec
@@ -0,0 +1,67 @@
+Name:           guava20
+Version:        20.0
+Release:        9
+Summary:        Google Libraries for Java
+License:        ASL 2.0 and CC0
+URL:            https://github.com/google/guava
+Source0:        https://github.com/google/guava/archive/%{version}.tar.gz
+BuildArch:      noarch
+Patch0000:      0001-Avoid-presizing-arrays.patch
+BuildRequires:  maven-local mvn(com.google.code.findbugs:jsr305) mvn(junit:junit)
+BuildRequires:  mvn(org.apache.felix:maven-bundle-plugin) mvn(org.codehaus.mojo:build-helper-maven-plugin)
+BuildRequires:  mvn(org.sonatype.oss:oss-parent:pom:)
+Provides:       guava20-testlib = %{version}-%{release}
+Obsoletes:      guava20-testlib < %{version}-%{release}
+
+%description
+Guava is a set of core libraries that includes new collection types ,immutable collections,
+a graph library, and utilities for concurrency, I/O, hashing, primitives, strings, and more.
+
+%package        help
+Summary:        API documentation for guava20
+Provides:       guava20-javadoc = %{version}-%{release}
+Obsoletes:      guava20-javadoc < %{version}-%{release}
+
+%description    help
+Javadoc document for guava20.
+
+%prep
+%autosetup -n guava-%{version} -p1
+find . -name '*.jar' -delete
+
+
+%pom_disable_module guava-gwt
+%pom_remove_plugin -r :animal-sniffer-maven-plugin
+%pom_remove_plugin :maven-gpg-plugin
+%pom_remove_dep jdk:srczip guava
+%pom_remove_dep :caliper guava-tests
+%mvn_package :guava-parent guava
+%mvn_package :guava-tests __noinstall
+%pom_remove_plugin -r :maven-javadoc-plugin
+%pom_xpath_inject /pom:project/pom:build/pom:plugins/pom:plugin/pom:configuration/pom:instructions "<_nouses>true</_nouses>" guava/pom.xml
+%pom_remove_dep -r :animal-sniffer-annotations
+%pom_remove_dep -r :error_prone_annotations
+%pom_remove_dep -r :j2objc-annotations
+
+
+annotations=$(fgrep -hr -e com.google.j2objc.annotations -e com.google.errorprone.annotation -e org.codehaus.mojo.animal_sniffer \
+    | sort -u | sed 's/.*\.\([^.]*\);/\1/' | paste -sd\|)
+find -name '*.java' | xargs sed -ri "s/^import .*\.($annotations);//;s/@($annotations)"'\>\s*(\((("[^"]*")|([^)]*))\))?//'
+
+%build
+%mvn_compat_version : 20.0 19.0 18.0 17.0 16.0.1 16.0 15.0 14.0.1 14.0 13.0.1 13.0 12.0.1 12.0 11.0.2 11.0.1 11.0 10.0.1 10.0
+%mvn_alias :guava com.google.collections:google-collections com.google.guava:guava-jdk5
+%mvn_build -s -f
+
+%install
+%mvn_install
+
+%files -f .mfiles-guava -f .mfiles-guava-testlib
+%license COPYING
+
+%files help -f .mfiles-javadoc
+%doc CONTRIBUTORS README*
+
+%changelog
+* Thu Dec 5 2019 zhujunhao <zhujunhao5@huawei.com> 20.0-9
+- Package init
diff --git a/v20.0.tar.gz b/v20.0.tar.gz
new file mode 100644
index 0000000..3b0596c
Binary files /dev/null and b/v20.0.tar.gz differ