Jar files do have 0xcafe at offset 40 displayed as "fe ca" at offset 0x28 in a hex viewer. Here is the link to the code that writes this JAR_MAGIC number: http://kickjava.com/src/java/util/jar/JarOutputStream.java.htm
Jar files do have 0xcafe at offset 40 displayed as "fe ca" at offset 0x28 in a hex viewer. Here is the link to the code that writes this JAR_MAGIC number: http:// kickjava. com/src/ java/util/ jar/JarOutputSt ream.java. htm