diff --git a/geronimo-specs.build.xml b/geronimo-specs.build.xml
index 574fac3..4c93311 100644
--- a/geronimo-specs.build.xml
+++ b/geronimo-specs.build.xml
@@ -204,7 +204,7 @@
       <mkdir dir="${gbuild.dir}/${dist}"/>
       <mkdir dir="${gbuild.dir}/${apidocs}"/>
 
-      <javac source="1.8" target="1.8" srcdir="${gbuild.dir}/${src}" destdir="${gbuild.dir}/${build}" classpath="${gbuild.classpath}" encoding="UTF-8"/>
+      <javac source="1.8" target="1.8" release="8" srcdir="${gbuild.dir}/${src}" destdir="${gbuild.dir}/${build}" classpath="${gbuild.classpath}" encoding="UTF-8"/>
 
       <jar jarfile="${gbuild.dir}/${dist}/${gbuild.jar}" basedir="${gbuild.dir}/${build}"/>
 
diff --git a/geronimo-specs.spec b/geronimo-specs.spec
index cd02ac4..0719193 100644
--- a/geronimo-specs.spec
+++ b/geronimo-specs.spec
@@ -25,6 +25,7 @@ License:        Apache-2.0
 Group:          Development/Languages/Java
 URL:            https://geronimo.apache.org
 Source0:        %{name}-%{version}-src.tar.bz2
+Patch0:         sun-security-provider.patch
 # STEPS TO CREATE THE SOURCE FILE
 # mkdir geronimo-specs-1.2
 # cd geronimo-specs-1.2
@@ -627,6 +628,7 @@ package are deprecated and will disapear in future releases.
 
 %prep
 %setup -q
+%patch0 -p1
 chmod -R go=u-w *
 mkdir etc
 cp LICENSE.txt etc
@@ -637,8 +639,7 @@ cp %{SOURCE1000} build.xml
 %pom_xpath_set pom:project/pom:version 1.1.1 geronimo-spec-j2ee
 
 %build
-ant -Dant.build.javac.source=8 -Dant.build.javac.target=8 \
-    -Didlj=%{java_home}/bin/idlj
+%ant -Dant.build.javac.source=8 -Dant.build.javac.target=8
 
 %install
 set +x
diff --git a/sun-security-provider.patch b/sun-security-provider.patch
new file mode 100644
index 0000000..50e4956
--- /dev/null
+++ b/sun-security-provider.patch
@@ -0,0 +1,24 @@
+diff -urEbwB geronimo-specs-1.2.orig/geronimo-javamail_1.3.1_spec-1.3/src/main/java/javax/mail/internet/NewsAddress.java geronimo-specs-1.2/geronimo-javamail_1.3.1_spec-1.3/src/main/java/javax/mail/internet/NewsAddress.java
+--- geronimo-specs-1.2.orig/geronimo-javamail_1.3.1_spec-1.3/src/main/java/javax/mail/internet/NewsAddress.java	2023-10-16 15:51:42.237871542 +0200
++++ geronimo-specs-1.2/geronimo-javamail_1.3.1_spec-1.3/src/main/java/javax/mail/internet/NewsAddress.java	2023-10-16 15:51:58.961315753 +0200
+@@ -25,8 +25,6 @@
+ 
+ import javax.mail.Address;
+ 
+-import sun.security.provider.Sun;
+-
+ /**
+  * A representation of an RFC1036 Internet newsgroup address.
+  *
+diff -urEbwB geronimo-specs-1.2.orig/geronimo-javamail_1.4_spec-1.1/src/main/java/javax/mail/internet/NewsAddress.java geronimo-specs-1.2/geronimo-javamail_1.4_spec-1.1/src/main/java/javax/mail/internet/NewsAddress.java
+--- geronimo-specs-1.2.orig/geronimo-javamail_1.4_spec-1.1/src/main/java/javax/mail/internet/NewsAddress.java	2023-10-16 15:51:42.244538252 +0200
++++ geronimo-specs-1.2/geronimo-javamail_1.4_spec-1.1/src/main/java/javax/mail/internet/NewsAddress.java	2023-10-16 15:52:20.221456718 +0200
+@@ -25,8 +25,6 @@
+ 
+ import javax.mail.Address;
+ 
+-import sun.security.provider.Sun;
+-
+ /**
+  * A representation of an RFC1036 Internet newsgroup address.
+  *