Spaces instead of tabs

h2/src/main/org/h2/store/fs/FilePathDisk.java

@@ -422,10 +422,10 @@ class FileDisk extends FileBase {
 
     @Override
     public FileChannel truncate(long newLength) throws IOException {
-    	// compatibility with JDK FileChannel#truncate
-    	if (readOnly) {
-    		throw new NonWritableChannelException();
-    	}
+        // compatibility with JDK FileChannel#truncate
+        if (readOnly) {
+            throw new NonWritableChannelException();
+        }
         if (newLength < file.length()) {
             file.setLength(newLength);
         }

h2/src/main/org/h2/store/fs/FilePathMem.java

@@ -265,10 +265,10 @@ class FileMem extends FileBase {
 
     @Override
     public FileChannel truncate(long newLength) throws IOException {
-    	// compatibility with JDK FileChannel#truncate
-    	if (readOnly) {
-    		throw new NonWritableChannelException();
-    	}
+        // compatibility with JDK FileChannel#truncate
+        if (readOnly) {
+            throw new NonWritableChannelException();
+        }
         if (newLength < size()) {
             data.touch(readOnly);
             pos = Math.min(pos, newLength);

h2/src/main/org/h2/store/fs/FilePathNioMapped.java

@@ -204,10 +204,10 @@ class FileNioMapped extends FileBase {
 
     @Override
     public synchronized FileChannel truncate(long newLength) throws IOException {
-    	// compatibility with JDK FileChannel#truncate
-    	if (mode == MapMode.READ_ONLY) {
-    		throw new NonWritableChannelException();
-    	}
+        // compatibility with JDK FileChannel#truncate  
+        if (mode == MapMode.READ_ONLY) {
+            throw new NonWritableChannelException();
+        }
         if (newLength < size()) {
             setFileLength(newLength);
         }

h2/src/main/org/h2/store/fs/FilePathNioMem.java

@@ -257,10 +257,10 @@ class FileNioMem extends FileBase {
 
     @Override
     public FileChannel truncate(long newLength) throws IOException {
-    	// compatibility with JDK FileChannel#truncate
-    	if (readOnly) {
-    		throw new NonWritableChannelException();
-    	}
+        // compatibility with JDK FileChannel#truncate
+        if (readOnly) {
+            throw new NonWritableChannelException();
+        }
         if (newLength < size()) {
             data.touch(readOnly);
             pos = Math.min(pos, newLength);