FileHandle: fix double-checked locking

ctrueden · ctrueden · commit 1b1c6628226f · 2017-07-10T17:03:42.000-05:00
diff --git a/src/main/java/org/scijava/io/handle/FileHandle.java b/src/main/java/org/scijava/io/handle/FileHandle.java
@@ -285,6 +285,7 @@ private RandomAccessFile raf() throws IOException {
 	}
 
 	private synchronized void initRAF() throws IOException {
+		if (raf != null) return;
 		raf = new RandomAccessFile(get().getFile(), getMode());
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -285,6 +285,7 @@ private RandomAccessFile raf() throws IOException {`
`285`	`285`	`}`
`286`	`286`
`287`	`287`	`private synchronized void initRAF() throws IOException {`
	`288`	`+ if (raf != null) return;`
`288`	`289`	`raf = new RandomAccessFile(get().getFile(), getMode());`
`289`	`290`	`}`
`290`	`291`