diff --git a/c/src/main/java/org/apache/arrow/c/jni/JniLoader.java b/c/src/main/java/org/apache/arrow/c/jni/JniLoader.java index f712b400b..46c93f554 100644 --- a/c/src/main/java/org/apache/arrow/c/jni/JniLoader.java +++ b/c/src/main/java/org/apache/arrow/c/jni/JniLoader.java @@ -75,8 +75,23 @@ private synchronized void loadRemaining() { } private void load(String name) { - final String libraryToLoad = - name + "/" + getNormalizedArch() + "/" + System.mapLibraryName(name); + String libraryName = System.mapLibraryName(name); + + // If 'arrow.cdata.library.path' is defined, try to load the native library from there + String libraryPath = System.getProperty("arrow.cdata.library.path"); + if (libraryPath != null) { + try { + File libraryFile = new File(libraryPath, libraryName); + if (libraryFile.isFile()) { + System.load(libraryFile.getAbsolutePath()); + return; + } + } catch (UnsatisfiedLinkError e) { + // Ignore this error and fall back to extracting from the JAR file + } + } + + final String libraryToLoad = name + "/" + getNormalizedArch() + "/" + libraryName; try { File temp = File.createTempFile("jnilib-", ".tmp", new File(System.getProperty("java.io.tmpdir")));