Java version move from 11 to 8, due to workflow failure

java/pom.xml

diff --git a/java/pom.xml b/java/pom.xml
index e36e459..d34ac98 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -167,8 +167,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.11.0</version>
         <configuration>
-          <source>11</source>
-          <target>11</target>
+          <source>8</source>
+          <target>8</target>
           <encoding>UTF-8</encoding>
         </configuration>
       </plugin>

tools/java/common/pom.xml

diff --git a/tools/java/common/pom.xml b/tools/java/common/pom.xml
index 418f887..05575e8 100644
--- a/tools/java/common/pom.xml
+++ b/tools/java/common/pom.xml
@@ -31,8 +31,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.11.0</version>
         <configuration>
-          <source>11</source>
-          <target>11</target>
+          <source>8</source>
+          <target>8</target>
           <encoding>UTF-8</encoding>
         </configuration>
       </plugin>

tools/java/cpp-build/pom.xml

diff --git a/tools/java/cpp-build/pom.xml b/tools/java/cpp-build/pom.xml
index f0ebe55..86407e0 100644
--- a/tools/java/cpp-build/pom.xml
+++ b/tools/java/cpp-build/pom.xml
@@ -27,8 +27,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.11.0</version>
         <configuration>
-          <source>11</source>
-	  <target>11</target>
+          <source>8</source>
+	  <target>8</target>
 	  <encoding>UTF-8</encoding>
         </configuration>
       </plugin>

tools/java/data/pom.xml

diff --git a/tools/java/data/pom.xml b/tools/java/data/pom.xml
index a9da01d..1f6dfb1 100644
--- a/tools/java/data/pom.xml
+++ b/tools/java/data/pom.xml
@@ -49,8 +49,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.11.0</version>
         <configuration>
-          <source>11</source>
-	  <target>11</target>
+          <source>8</source>
+	  <target>8</target>
 	  <encoding>UTF-8</encoding>
         </configuration>
       </plugin>

tools/java/java-build/pom.xml

diff --git a/tools/java/java-build/pom.xml b/tools/java/java-build/pom.xml
index 2221cc8..e63a019 100644
--- a/tools/java/java-build/pom.xml
+++ b/tools/java/java-build/pom.xml
@@ -49,8 +49,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.11.0</version>
         <configuration>
-          <source>11</source>
-	  <target>11</target>
+          <source>8</source>
+	  <target>8</target>
 	  <encoding>UTF-8</encoding>
         </configuration>
       </plugin>