diff --git a/com.oracle.truffle.r.runtime.ffi/src/com/oracle/truffle/r/runtime/ffi/jni/JNI_Base.java b/com.oracle.truffle.r.runtime.ffi/src/com/oracle/truffle/r/runtime/ffi/jni/JNI_Base.java
index 6aa96a30f9ac2243f21b6d0c463a8a0237fff7ad..08c7928e005e53460b1df305a80ac1336a90e747 100644
--- a/com.oracle.truffle.r.runtime.ffi/src/com/oracle/truffle/r/runtime/ffi/jni/JNI_Base.java
+++ b/com.oracle.truffle.r.runtime.ffi/src/com/oracle/truffle/r/runtime/ffi/jni/JNI_Base.java
@@ -139,13 +139,4 @@ public class JNI_Base implements BaseRFFI {
     private static native long native_strtol(String s, int base, int[] errno);
 
     private static native String native_readlink(String s, int[] errno);
-
-    private static native long native_dlopen(String path, boolean local, boolean now);
-
-    private static native int native_dlclose(long handle);
-
-    private static native String native_dlerror();
-
-    private static native long native_dlsym(long handle, String symbol);
-
 }