X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;ds=sidebyside;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fcore%2FSoneDownloader.java;h=4469d2fa8aa4faa2e869560134b1bea622e5590a;hb=2d3caec6e09b80daa4721f20c92113862f2164a3;hp=e11ded88a1cec03c8239809e444991b390d3dbba;hpb=ca4a41282673af46640e423473772444dea4f3c6;p=Sone.git

diff --git a/src/main/java/net/pterodactylus/sone/core/SoneDownloader.java b/src/main/java/net/pterodactylus/sone/core/SoneDownloader.java
index e11ded8..4469d2f 100644
--- a/src/main/java/net/pterodactylus/sone/core/SoneDownloader.java
+++ b/src/main/java/net/pterodactylus/sone/core/SoneDownloader.java
@@ -150,7 +150,16 @@ public class SoneDownloader extends AbstractService {
 		try {
 			xmlBucket = fetchResult.asBucket();
 			xmlInputStream = xmlBucket.getInputStream();
-			Document document = XML.transformToDocument(xmlInputStream);
+			Document document;
+			/* XML parsing is not thread-safe. */
+			synchronized (this) {
+				document = XML.transformToDocument(xmlInputStream);
+			}
+			if (document == null) {
+				/* TODO - mark Sone as bad. */
+				logger.log(Level.WARNING, "Could not parse XML for Sone %s at %s!", new Object[] { originalSone, requestUri });
+				return null;
+			}
 			SimpleXML soneXml;
 			try {
 				soneXml = SimpleXML.fromDocument(document);