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Merge pull request #11692 from izeye:null-check 

* pr/11692:
  Add missing null checks and volatile keyword
This commit is contained in:
Stephane Nicoll 2018-01-22 16:06:19 +01:00
parent 66164bff14 13a7c9df4b
commit 34b19de68f
2 changed files with 11 additions and 7 deletions
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10
spring-boot-project/spring-boot/src/main/java/org/springframework/boot/security/reactive/ApplicationContextServerWebExchangeMatcher.java
View File

@ -43,9 +43,9 @@ public abstract class ApplicationContextServerWebExchangeMatcher<C>
private final Class<? extends C> contextClass;
private C context;
private volatile C context;
private Object contextLock = new Object();
private final Object contextLock = new Object();
public ApplicationContextServerWebExchangeMatcher(Class<? extends C> contextClass) {
Assert.notNull(contextClass, "Context class must not be null");
@ -68,8 +68,10 @@ public abstract class ApplicationContextServerWebExchangeMatcher<C>
protected C getContext(ServerWebExchange exchange) {
if (this.context == null) {
synchronized (this.contextLock) {
this.context = createContext(exchange);
initialized(this.context);
if (this.context == null) {
this.context = createContext(exchange);
initialized(this.context);
}
}
}
return this.context;

8
spring-boot-project/spring-boot/src/main/java/org/springframework/boot/security/servlet/ApplicationContextRequestMatcher.java
View File

@ -45,7 +45,7 @@ public abstract class ApplicationContextRequestMatcher<C> implements RequestMatc
private volatile C context;
private Object contextLock = new Object();
private final Object contextLock = new Object();
public ApplicationContextRequestMatcher(Class<? extends C> contextClass) {
Assert.notNull(contextClass, "Context class must not be null");
@ -68,8 +68,10 @@ public abstract class ApplicationContextRequestMatcher<C> implements RequestMatc
private C getContext(HttpServletRequest request) {
if (this.context == null) {
synchronized (this.contextLock) {
this.context = createContext(request);
initialized(this.context);
if (this.context == null) {
this.context = createContext(request);
initialized(this.context);
}
}
}
return this.context;