diff --git a/.circleci/config.yml b/.circleci/config.yml
index 0326b71da..9967c58e7 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -6,8 +6,8 @@ jobs:
     steps:
       - checkout
       - run:
-        name: changing directory
-        command: |
+          name: changing directory
+          command: |
             cd chameleon-client
       - run:
           name: installing dependencies
@@ -18,8 +18,8 @@ jobs:
             command: |
                 npm run build
       - store_artifacts:
-        path: chameleon-client/dist
-    build_jar:
+          path: chameleon-client/dist
+    build_java:
         docker:
           - image: maven:3.6.2-jdk-12
         steps:
diff --git a/.gitignore b/.gitignore
index e1a08cb49..a495e4a21 100644
--- a/.gitignore
+++ b/.gitignore
@@ -111,3 +111,9 @@ Main/target
 New client/chameleon-client/node_modules/
 Main/dependency-reduced-pom.xml
 Main/src/main/java/META-INF
+
+Main/.settings/org.eclipse.jdt.core.prefs
+
+Main/.classpath
+
+Main/.project
diff --git a/Main/.settings/org.eclipse.jdt.core.prefs b/Main/.settings/org.eclipse.jdt.core.prefs
deleted file mode 100644
index 6eecfaf0f..000000000
--- a/Main/.settings/org.eclipse.jdt.core.prefs
+++ /dev/null
@@ -1,9 +0,0 @@
-eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=12
-org.eclipse.jdt.core.compiler.compliance=12
-org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
-org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
-org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
-org.eclipse.jdt.core.compiler.processAnnotations=disabled
-org.eclipse.jdt.core.compiler.release=enabled
-org.eclipse.jdt.core.compiler.source=12