Fail to build on Debian 11 about bluecove HOT 1 OPEN

diff --git a/bluecove-android2/pom.xml b/bluecove-android2/pom.xml
index a0c2ec3c..be9105f4 100644
--- a/bluecove-android2/pom.xml
+++ b/bluecove-android2/pom.xml
@@ -71,8 +71,8 @@
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.5</source>
-                    <target>1.5</target>
+                    <source>6</source>
+                    <target>1.6</target>
                 </configuration>
             </plugin>
 
diff --git a/bluecove-bluez/pom.xml b/bluecove-bluez/pom.xml
index fc5377c2..27549833 100755
--- a/bluecove-bluez/pom.xml
+++ b/bluecove-bluez/pom.xml
@@ -114,8 +114,8 @@
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.5</source>
-                    <target>1.5</target>
+                    <source>6</source>
+                    <target>1.6</target>
                 </configuration>
             </plugin>
 
diff --git a/bluecove-emu-gui/pom.xml b/bluecove-emu-gui/pom.xml
index 6550d991..447de007 100644
--- a/bluecove-emu-gui/pom.xml
+++ b/bluecove-emu-gui/pom.xml
@@ -106,8 +106,8 @@
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.5</source>
-                    <target>1.5</target>
+                    <source>6</source>
+                    <target>1.6</target>
                 </configuration>
             </plugin>
 
diff --git a/bluecove-emu/pom.xml b/bluecove-emu/pom.xml
index b82eda9b..1d771371 100644
--- a/bluecove-emu/pom.xml
+++ b/bluecove-emu/pom.xml
@@ -88,8 +88,8 @@
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.5</source>
-                    <target>1.5</target>
+                    <source>6</source>
+                    <target>1.6</target>
                 </configuration>
             </plugin>
 
diff --git a/bluecove-examples/pom.xml b/bluecove-examples/pom.xml
index 5b30dc3b..3716df18 100644
--- a/bluecove-examples/pom.xml
+++ b/bluecove-examples/pom.xml
@@ -85,8 +85,8 @@
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.4</source>
-                    <target>1.4</target>
+                    <source>6</source>
+                    <target>1.6</target>
                 </configuration>
             </plugin>
 
diff --git a/bluecove-gpl/pom.xml b/bluecove-gpl/pom.xml
index 1274f1d3..1364754d 100644
--- a/bluecove-gpl/pom.xml
+++ b/bluecove-gpl/pom.xml
@@ -81,8 +81,8 @@
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.3</source>
-                    <target>1.1</target>
+                    <source>6</source>
+                    <target>1.6</target>
                 </configuration>
             </plugin>
 
diff --git a/bluecove-tests/pom.xml b/bluecove-tests/pom.xml
index 34312cbf..ff1338d8 100644
--- a/bluecove-tests/pom.xml
+++ b/bluecove-tests/pom.xml
@@ -65,8 +65,8 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.5</source>
-                    <target>1.5</target>
+                    <source>6</source>
+                    <target>1.6</target>
                 </configuration>
             </plugin>
 
@@ -105,4 +105,4 @@
         </plugins>
     </reporting>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/bluecove/pom.xml b/bluecove/pom.xml
index 92a9fbe8..3e4ae507 100644
--- a/bluecove/pom.xml
+++ b/bluecove/pom.xml
@@ -126,8 +126,8 @@
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.3</source>
-                    <target>1.1</target>
+                    <source>6</source>
+                    <target>1.6</target>
                 </configuration>
             </plugin>