diff --git a/lib/eclipse/README.jdt-upgrade b/lib/eclipse/README.jdt-upgrade
index 86a4824..9456506 100644
--- a/lib/eclipse/README.jdt-upgrade
+++ b/lib/eclipse/README.jdt-upgrade
@@ -1,13 +1,9 @@
 IMPORTANT NOTE WHEN UPGRADING THE JDT.
 
-The digital signature on the jdt jar file needs to be removed by removing the following files
-from the jar:
-/META-INF/*.RSA
-/META-INF/*.SF
+Starting from JDT 3.33.0 we need to include 2 jars, the jdt core jar and the jdt compiler batch jar.
 
-Failure to do so will cause the open-source build process to file with an obscure error (e.g. rmic
-failing).
+For ant you can download both jars and there sources by downloading the eclipse sdk from
+https://www.eclipse.org/downloads/packages/
+
+After download and extract the target build jars will be found under eclipse/plugins in the extracted folder.
 
-Also move the jdtCompilerAdapter.jar out of the jdt jar file and rename it to reflect the
-version. E.g. if the jdt jar file was named org.eclipse.jdt.core-3.8.2.v20120814-155456.jar,
-rename the jdtCompilerAdapter.jar to jdtCompilerAdapter-3.8.2.v20120814-155456.jar
diff --git a/lib/eclipse/org.eclipse.jdt.core.compiler.batch.source_3.33.0.v20230218-1114.jar b/lib/eclipse/org.eclipse.jdt.core.compiler.batch.source_3.33.0.v20230218-1114.jar
new file mode 100644
index 0000000..4c36383
Binary files /dev/null and b/lib/eclipse/org.eclipse.jdt.core.compiler.batch.source_3.33.0.v20230218-1114.jar differ
diff --git a/lib/eclipse/org.eclipse.jdt.core.compiler.batch_3.33.0.v20230218-1114.jar b/lib/eclipse/org.eclipse.jdt.core.compiler.batch_3.33.0.v20230218-1114.jar
new file mode 100644
index 0000000..a8f827f
Binary files /dev/null and b/lib/eclipse/org.eclipse.jdt.core.compiler.batch_3.33.0.v20230218-1114.jar differ
diff --git a/lib/eclipse/org.eclipse.jdt.core.source_3.33.0.v20230222-1748.jar b/lib/eclipse/org.eclipse.jdt.core.source_3.33.0.v20230222-1748.jar
new file mode 100644
index 0000000..3956d8f
Binary files /dev/null and b/lib/eclipse/org.eclipse.jdt.core.source_3.33.0.v20230222-1748.jar differ
diff --git a/lib/eclipse/org.eclipse.jdt.core_3.33.0.v20230222-1748.jar b/lib/eclipse/org.eclipse.jdt.core_3.33.0.v20230222-1748.jar
new file mode 100644
index 0000000..ed62f23
Binary files /dev/null and b/lib/eclipse/org.eclipse.jdt.core_3.33.0.v20230222-1748.jar differ