fix small issues

Author: jvazquez-r7

external/source/jre7u17/Exploit.java renamed to external/source/exploits/jre17u17/Exploit.java

@@ -0,0 +1,17 @@
+CLASSES = \
+	Exploit.java
+
+.SUFFIXES: .java .class
+.java.class:
+	javac -source 1.2 -target 1.2 -cp "../../../../data/java" $*.java
+
+all: $(CLASSES:.java=.class)
+
+install:
+	mv Exploit.class ../../../../data/exploits/jre17u17/Exploit.class
+	mv SystemClass.class ../../../../data/exploits/jre17u17/SystemClass.class
+	mv Union1.class ../../../../data/exploits/jre17u17/Union1.class
+	mv Union2.class ../../../../data/exploits/jre17u17/Union2.class
+
+clean:
+	rm -rf *.class