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Resource.lastModified() propagates 0 value if target resource exists

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Issue: SPR-17320
This commit is contained in:
Juergen Hoeller
2018-10-10 00:31:49 +02:00
parent 547b841172
commit b53995b5d4
1 changed files with 7 additions and 7 deletions
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14
spring-core/src/main/java/org/springframework/core/io/AbstractResource.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2017 the original author or authors.
* Copyright 2002-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -55,8 +55,7 @@ public abstract class AbstractResource implements Resource {
catch (IOException ex) {
// Fall back to stream existence: can we open the stream?
try {
InputStream is = getInputStream();
is.close();
getInputStream().close();
return true;
}
catch (Throwable isEx) {
@@ -126,7 +125,7 @@ public abstract class AbstractResource implements Resource {
Assert.state(is != null, "Resource InputStream must not be null");
try {
long size = 0;
byte[] buf = new byte[255];
byte[] buf = new byte[256];
int read;
while ((read = is.read(buf)) != -1) {
size += read;
@@ -149,10 +148,11 @@ public abstract class AbstractResource implements Resource {
*/
@Override
public long lastModified() throws IOException {
long lastModified = getFileForLastModifiedCheck().lastModified();
if (lastModified == 0L) {
File fileToCheck = getFileForLastModifiedCheck();
long lastModified = fileToCheck.lastModified();
if (lastModified == 0L && !fileToCheck.exists()) {
throw new FileNotFoundException(getDescription() +
" cannot be resolved in the file system for resolving its last-modified timestamp");
" cannot be resolved in the file system for checking its last-modified timestamp");
}
return lastModified;
}