From 3471fb41068daab4065476bb3ee14c48ee1395be Mon Sep 17 00:00:00 2001
From: "Popov, Kristian" <kristian.popov@study.thws.de>
Date: Thu, 20 Aug 2026 13:41:54 +0200
Subject: [PATCH 1/3] fix: record the importdata package in lowercase so it
 compiles on Linux

---
 .../domain/dto/{importData => importdata}/ImportAuthorDto.java    | 0
 .../app/domain/dto/{importData => importdata}/ImportBookDto.java  | 0
 .../domain/dto/{importData => importdata}/ImportCustomerDto.java  | 0
 .../dto/{importData => importdata}/ImportTransactionDto.java      | 0
 4 files changed, 0 insertions(+), 0 deletions(-)
 rename Library-Management-System-Version-2/src/main/java/app/domain/dto/{importData => importdata}/ImportAuthorDto.java (100%)
 rename Library-Management-System-Version-2/src/main/java/app/domain/dto/{importData => importdata}/ImportBookDto.java (100%)
 rename Library-Management-System-Version-2/src/main/java/app/domain/dto/{importData => importdata}/ImportCustomerDto.java (100%)
 rename Library-Management-System-Version-2/src/main/java/app/domain/dto/{importData => importdata}/ImportTransactionDto.java (100%)

diff --git a/Library-Management-System-Version-2/src/main/java/app/domain/dto/importData/ImportAuthorDto.java b/Library-Management-System-Version-2/src/main/java/app/domain/dto/importdata/ImportAuthorDto.java
similarity index 100%
rename from Library-Management-System-Version-2/src/main/java/app/domain/dto/importData/ImportAuthorDto.java
rename to Library-Management-System-Version-2/src/main/java/app/domain/dto/importdata/ImportAuthorDto.java
diff --git a/Library-Management-System-Version-2/src/main/java/app/domain/dto/importData/ImportBookDto.java b/Library-Management-System-Version-2/src/main/java/app/domain/dto/importdata/ImportBookDto.java
similarity index 100%
rename from Library-Management-System-Version-2/src/main/java/app/domain/dto/importData/ImportBookDto.java
rename to Library-Management-System-Version-2/src/main/java/app/domain/dto/importdata/ImportBookDto.java
diff --git a/Library-Management-System-Version-2/src/main/java/app/domain/dto/importData/ImportCustomerDto.java b/Library-Management-System-Version-2/src/main/java/app/domain/dto/importdata/ImportCustomerDto.java
similarity index 100%
rename from Library-Management-System-Version-2/src/main/java/app/domain/dto/importData/ImportCustomerDto.java
rename to Library-Management-System-Version-2/src/main/java/app/domain/dto/importdata/ImportCustomerDto.java
diff --git a/Library-Management-System-Version-2/src/main/java/app/domain/dto/importData/ImportTransactionDto.java b/Library-Management-System-Version-2/src/main/java/app/domain/dto/importdata/ImportTransactionDto.java
similarity index 100%
rename from Library-Management-System-Version-2/src/main/java/app/domain/dto/importData/ImportTransactionDto.java
rename to Library-Management-System-Version-2/src/main/java/app/domain/dto/importdata/ImportTransactionDto.java

From 76688b2ef1f21ecbc679c88fc9a2c27bdc3c0458 Mon Sep 17 00:00:00 2001
From: "Popov, Kristian" <kristian.popov@study.thws.de>
Date: Thu, 20 Aug 2026 13:41:55 +0200
Subject: [PATCH 2/3] build: compile with --release so a newer local JDK cannot
 hide a JDK 21 break

---
 Library-Management-System-Version-2/pom.xml | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Library-Management-System-Version-2/pom.xml b/Library-Management-System-Version-2/pom.xml
index d321804..a6283d3 100644
--- a/Library-Management-System-Version-2/pom.xml
+++ b/Library-Management-System-Version-2/pom.xml
@@ -260,8 +260,12 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>3.11.0</version>
 				<configuration>
-					<source>${java.version}</source>
-					<target>${java.version}</target>
+					<!--
+						release, not source/target: those emit 21 bytecode but still compile against
+						whatever JDK is installed, so an API added after 21 builds on a developer's
+						machine and fails on a JDK 21 runner. release pins the API surface too.
+					-->
+					<release>${java.version}</release>
 					<annotationProcessorPaths>
 						<path>
 							<groupId>org.projectlombok</groupId>

From 371d50d82bc2eb3ea96270f84008a4543ce0a942 Mon Sep 17 00:00:00 2001
From: "Popov, Kristian" <kristian.popov@study.thws.de>
Date: Thu, 20 Aug 2026 13:53:43 +0200
Subject: [PATCH 3/3] fix: give the Analytics wrapper LF endings and the
 executable bit so Linux can run it

---
 .gitattributes         | 15 +++++++++++++++
 Analytics-Service/mvnw |  0
 2 files changed, 15 insertions(+)
 create mode 100644 .gitattributes
 mode change 100644 => 100755 Analytics-Service/mvnw

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..2bb33e7
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,15 @@
+# Line endings are not cosmetic for these.
+#
+# The Maven wrapper is a shell script executed on Linux runners: committed with CRLF, its shebang
+# reads as an interpreter named "/bin/sh\r", which does not exist, and the build dies with exit 127
+# before Maven ever starts. Checking these out as LF everywhere is what keeps that from recurring.
+mvnw            text eol=lf
+*.sh            text eol=lf
+Dockerfile      text eol=lf
+*.yml           text eol=lf
+*.yaml          text eol=lf
+
+# Windows counterparts, which need the opposite.
+mvnw.cmd        text eol=crlf
+*.bat           text eol=crlf
+*.ps1           text eol=crlf
diff --git a/Analytics-Service/mvnw b/Analytics-Service/mvnw
old mode 100644
new mode 100755