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8311032: Empty value for java.protocol.handler.pkgs system property can lead to unnecessary classloading attempts of protocol handlers

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Reviewed-by: dfuchs
This commit is contained in:
Jaikiran Pai 2023-06-29 01:30:46 +00:00
parent ded137073a
commit 8f5a38488c
1 changed files with 5 additions and 2 deletions
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7
src/java.base/share/classes/java/net/URL.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1995, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1995, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -1433,7 +1433,7 @@ public final class URL implements java.io.Serializable {
private static URLStreamHandler lookupViaProperty(String protocol) {
String packagePrefixList =
GetPropertyAction.privilegedGetProperty(protocolPathProp);
if (packagePrefixList == null) {
if (packagePrefixList == null || packagePrefixList.isEmpty()) {
// not set
return null;
}
@ -1442,6 +1442,9 @@ public final class URL implements java.io.Serializable {
URLStreamHandler handler = null;
for (int i=0; handler == null && i<packagePrefixes.length; i++) {
String packagePrefix = packagePrefixes[i].trim();
if (packagePrefix.isEmpty()) {
continue;
}
try {
String clsName = packagePrefix + "." + protocol + ".Handler";
Class<?> cls = null;