diff --git a/build/org.eclipse.cdt.meson.ui.tests/META-INF/MANIFEST.MF b/build/org.eclipse.cdt.meson.ui.tests/META-INF/MANIFEST.MF
index 6c3cf30d801..1fb9b376720 100644
--- a/build/org.eclipse.cdt.meson.ui.tests/META-INF/MANIFEST.MF
+++ b/build/org.eclipse.cdt.meson.ui.tests/META-INF/MANIFEST.MF
@@ -2,6 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Tests
 Bundle-SymbolicName: org.eclipse.cdt.meson.ui.tests
+Bundle-Vendor: Eclipse CDT
 Bundle-Version: 1.0.1.qualifier
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
 Require-Bundle: org.eclipse.cdt.meson.core;bundle-version="1.0.0",
diff --git a/cross/org.eclipse.cdt.launch.serial.ui/META-INF/MANIFEST.MF b/cross/org.eclipse.cdt.launch.serial.ui/META-INF/MANIFEST.MF
index a4df1d00520..05910bea839 100644
--- a/cross/org.eclipse.cdt.launch.serial.ui/META-INF/MANIFEST.MF
+++ b/cross/org.eclipse.cdt.launch.serial.ui/META-INF/MANIFEST.MF
@@ -2,6 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Ui
 Bundle-SymbolicName: org.eclipse.cdt.launch.serial.ui;singleton:=true
+Bundle-Vendor: Eclipse CDT
 Bundle-Version: 1.0.200.qualifier
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
 Require-Bundle: org.eclipse.core.runtime;bundle-version="3.13.0",
diff --git a/dsf-gdb/org.eclipse.cdt.dsf.gdb.multicorevisualizer.ui.tests/META-INF/MANIFEST.MF b/dsf-gdb/org.eclipse.cdt.dsf.gdb.multicorevisualizer.ui.tests/META-INF/MANIFEST.MF
index 0b3820efbba..b15e28d8683 100644
--- a/dsf-gdb/org.eclipse.cdt.dsf.gdb.multicorevisualizer.ui.tests/META-INF/MANIFEST.MF
+++ b/dsf-gdb/org.eclipse.cdt.dsf.gdb.multicorevisualizer.ui.tests/META-INF/MANIFEST.MF
@@ -2,6 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: DSF-GDB test fragment
 Bundle-SymbolicName: org.eclipse.cdt.dsf.gdb.multicorevisualizer.ui.tests;singleton:=true
+Bundle-Vendor: Eclipse CDT
 Bundle-Version: 1.0.0.qualifier
 Fragment-Host: org.eclipse.cdt.dsf.gdb.multicorevisualizer.ui
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
diff --git a/dsf-gdb/org.eclipse.cdt.dsf.gdb.tests/META-INF/MANIFEST.MF b/dsf-gdb/org.eclipse.cdt.dsf.gdb.tests/META-INF/MANIFEST.MF
index eaebd5d7a60..222d010a161 100644
--- a/dsf-gdb/org.eclipse.cdt.dsf.gdb.tests/META-INF/MANIFEST.MF
+++ b/dsf-gdb/org.eclipse.cdt.dsf.gdb.tests/META-INF/MANIFEST.MF
@@ -2,6 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: DSF-GDB test fragment
 Bundle-SymbolicName: org.eclipse.cdt.dsf.gdb.tests;singleton:=true
+Bundle-Vendor: Eclipse CDT
 Bundle-Version: 1.0.0.qualifier
 Fragment-Host: org.eclipse.cdt.dsf.gdb
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
diff --git a/lsp/org.eclipse.cdt.lsp.core.tests/META-INF/MANIFEST.MF b/lsp/org.eclipse.cdt.lsp.core.tests/META-INF/MANIFEST.MF
index cbb7ac89ed5..6df07877182 100644
--- a/lsp/org.eclipse.cdt.lsp.core.tests/META-INF/MANIFEST.MF
+++ b/lsp/org.eclipse.cdt.lsp.core.tests/META-INF/MANIFEST.MF
@@ -2,6 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: "Tests for LSP4E C/C++ Support"
 Bundle-SymbolicName: org.eclipse.cdt.lsp.core.tests
+Bundle-Vendor: Eclipse CDT
 Bundle-Version: 1.0.0.qualifier
 Automatic-Module-Name: org.eclipse.cdt.lsp.core.tests
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
diff --git a/qt/org.eclipse.cdt.qt.core.tests/META-INF/MANIFEST.MF b/qt/org.eclipse.cdt.qt.core.tests/META-INF/MANIFEST.MF
index 8ed28c3c257..ba9242b7092 100644
--- a/qt/org.eclipse.cdt.qt.core.tests/META-INF/MANIFEST.MF
+++ b/qt/org.eclipse.cdt.qt.core.tests/META-INF/MANIFEST.MF
@@ -2,6 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: QML Tests
 Bundle-SymbolicName: org.eclipse.cdt.qt.core.tests
+Bundle-Vendor: Eclipse CDT
 Bundle-Version: 2.0.0.qualifier
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
 Require-Bundle: org.eclipse.osgi;bundle-version="3.10.100",
diff --git a/toolchains/arduino/org.eclipse.cdt.arduino.core.tests/META-INF/MANIFEST.MF b/toolchains/arduino/org.eclipse.cdt.arduino.core.tests/META-INF/MANIFEST.MF
index ec1931740c9..a81f9539799 100644
--- a/toolchains/arduino/org.eclipse.cdt.arduino.core.tests/META-INF/MANIFEST.MF
+++ b/toolchains/arduino/org.eclipse.cdt.arduino.core.tests/META-INF/MANIFEST.MF
@@ -2,6 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Tests
 Bundle-SymbolicName: org.eclipse.cdt.arduino.core.tests
+Bundle-Vendor: Eclipse CDT
 Bundle-Version: 1.0.0.qualifier
 Fragment-Host: org.eclipse.cdt.arduino.core;bundle-version="1.0.0"
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
diff --git a/xlc/org.eclipse.cdt.core.lrparser.xlc.tests/META-INF/MANIFEST.MF b/xlc/org.eclipse.cdt.core.lrparser.xlc.tests/META-INF/MANIFEST.MF
index 54786a1d02d..fb5b4056d09 100644
--- a/xlc/org.eclipse.cdt.core.lrparser.xlc.tests/META-INF/MANIFEST.MF
+++ b/xlc/org.eclipse.cdt.core.lrparser.xlc.tests/META-INF/MANIFEST.MF
@@ -2,6 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Tests
 Bundle-SymbolicName: org.eclipse.cdt.core.lrparser.xlc.tests
+Bundle-Vendor: Eclipse CDT
 Bundle-Version: 1.0.0.qualifier
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
 Require-Bundle: org.junit,