test/sun/security/tools/jarsigner/TimestampCheck.java

@@ -38,11 +38,10 @@
 import java.security.cert.X509Certificate;
 import java.util.Calendar;
 import java.util.jar.JarEntry;
 import java.util.jar.JarFile;
 
-import sun.misc.IOUtils;
 import sun.security.pkcs.ContentInfo;
 import sun.security.pkcs.PKCS7;
 import sun.security.pkcs.PKCS9Attribute;
 import sun.security.pkcs.SignerInfo;
 import sun.security.timestamp.TimestampToken;

@@ -341,11 +340,11 @@
     static void checkTimestamp(String file, String policyId, String digestAlg)
             throws Exception {
         try (JarFile jf = new JarFile(file)) {
             JarEntry je = jf.getJarEntry("META-INF/OLD.RSA");
             try (InputStream is = jf.getInputStream(je)) {
-                byte[] content = IOUtils.readFully(is, -1, true);
+                byte[] content = is.readAllBytes();
                 PKCS7 p7 = new PKCS7(content);
                 SignerInfo[] si = p7.getSignerInfos();
                 if (si == null || si.length == 0) {
                     throw new Exception("Not signed");
                 }