diff --git a/pygeoweaver/jdk_utils.py b/pygeoweaver/jdk_utils.py
index fcf1c8f..a4f8c36 100644
--- a/pygeoweaver/jdk_utils.py
+++ b/pygeoweaver/jdk_utils.py
@@ -113,12 +113,21 @@ def extract_zip_archive(archive_path, destination_dir):
 
 def set_jdk_env_vars(jdk_install_dir):
     print(f'Setting JDK environment variables...')
+    java_line = f'\nexport JAVA_HOME="{jdk_install_dir}"\n'
+
+    check_java = False
+    with open(os.path.expanduser("~/.bashrc"), 'r') as file:
+        for line in file:
+            if line.strip() == java_line:
+                check_java = True
+                break
+        
+    if not check_java:
+        with open(os.path.expanduser("~/.bashrc"), "a") as bashrc:
+            bashrc.write(f'\nexport JAVA_HOME="{jdk_install_dir}"\n')
+            bashrc.write(f'export PATH="$JAVA_HOME/bin:$PATH"\n')
+            print('JDK environment variables set.')
 
-    with open(os.path.expanduser("~/.bashrc"), "a") as bashrc:
-        bashrc.write(f'\nexport JAVA_HOME="{jdk_install_dir}"\n')
-        bashrc.write(f'export PATH="$JAVA_HOME/bin:$PATH"\n')
-
-    print('JDK environment variables set.')
     subprocess.run(['bash', '-c', 'source ~/.bashrc'])
 
 
diff --git a/pygeoweaver/utils.py b/pygeoweaver/utils.py
index 29c660c..0933d72 100644
--- a/pygeoweaver/utils.py
+++ b/pygeoweaver/utils.py
@@ -28,11 +28,15 @@ def get_java_bin_from_which():
         
         try:
             
+            print("Executing: ", f'{get_root_dir()}/java_bin.sh')
+
             output = subprocess.check_output([f'{get_root_dir()}/java_bin.sh'], encoding='utf-8')
             
             java_bin_path = output.strip()
 
-        except subprocess.CalledProcessError:
+        except subprocess.CalledProcessError as e:
+
+            print(f"Command execution failed: {e.output}")
             
             return None
 
diff --git a/pyproject.toml b/pyproject.toml
index dd5f55e..9717659 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pygeoweaver"
-version = "0.6.12"
+version = "0.6.13"
 authors = [
   { name="Geoweaver team", email="geoweaver.app@gmail.com" },
 ]
@@ -22,7 +22,7 @@ classifiers = [
 
 [tool.poetry]
 name = "pygeoweaver"
-version = "0.6.12"
+version = "0.6.13"
 description = "This is a wrapper package of the Geoweaver app."
 authors = ["Geoweaver team <geoweaver.app@gmail.com>"]
 readme = "README.md"