FindBugs fix

- fixed "Should be a static inner class"
- see http://findbugs.sourceforge.net/bugDescriptions.html#SIC_INNER_SHOULD_BE_STATIC


git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1568178 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 1 insertions, 0 deletions

diff --git a/src/ooxml/java/org/apache/poi/openxml4j/util/ZipInputStreamZipEntrySource.java b/src/ooxml/java/org/apache/poi/openxml4j/util/ZipInputStreamZipEntrySource.java
index 45674f897e..f7f334c75c 100644
--- a/src/ooxml/java/org/apache/poi/openxml4j/util/ZipInputStreamZipEntrySource.java
+++ b/src/ooxml/java/org/apache/poi/openxml4j/util/ZipInputStreamZipEntrySource.java
@@ -66,6 +66,7 @@ public class ZipInputStreamZipEntrySource implements ZipEntrySource {
 	}
 	
 	public InputStream getInputStream(ZipEntry zipEntry) {
+	    assert (zipEntry instanceof FakeZipEntry);
 		FakeZipEntry entry = (FakeZipEntry)zipEntry;
 		return entry.getInputStream();
 	}