diff --git a/pgpainless-core/src/main/java/org/pgpainless/encryption_signing/EncryptionBuilder.java b/pgpainless-core/src/main/java/org/pgpainless/encryption_signing/EncryptionBuilder.java
index 58b3417b..ef11df65 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/encryption_signing/EncryptionBuilder.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/encryption_signing/EncryptionBuilder.java
@@ -193,6 +193,7 @@ public class EncryptionBuilder implements EncryptionBuilderInterface {
             return this;
         }
 
+        @Override
         public <O> WithAlgorithms andToSelf(@Nonnull PublicKeyRingSelectionStrategy<O> ringSelectionStrategy,
                                             @Nonnull MultiMap<O, PGPPublicKeyRingCollection> keys) {
             if (keys.isEmpty()) {
diff --git a/pgpainless-core/src/main/java/org/pgpainless/symmetric_encryption/SymmetricEncryptorDecryptor.java b/pgpainless-core/src/main/java/org/pgpainless/symmetric_encryption/SymmetricEncryptorDecryptor.java
index 87ec4404..c5505156 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/symmetric_encryption/SymmetricEncryptorDecryptor.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/symmetric_encryption/SymmetricEncryptorDecryptor.java
@@ -102,43 +102,52 @@ public class SymmetricEncryptorDecryptor {
      */
     public static byte[] symmetricallyDecrypt(@Nonnull byte[] data, @Nonnull Passphrase password)
             throws IOException, PGPException {
-        InputStream in = new BufferedInputStream(new ByteArrayInputStream(data));
-        in = PGPUtil.getDecoderStream(in);
+        PGPPBEEncryptedData pbe;
+        ByteArrayOutputStream outputStream = null;
+        BufferedInputStream bis = new BufferedInputStream(new ByteArrayInputStream(data));
+        InputStream in = PGPUtil.getDecoderStream(bis);
 
-        BcPGPObjectFactory pgpF = new BcPGPObjectFactory(in);
-        PGPEncryptedDataList enc;
-        Object o = pgpF.nextObject();
+        try {
+            BcPGPObjectFactory pgpF = new BcPGPObjectFactory(in);
+            PGPEncryptedDataList enc;
+            Object o = pgpF.nextObject();
 
-        if (o instanceof PGPEncryptedDataList) {
-            enc = (PGPEncryptedDataList) o;
-        } else {
-            enc = (PGPEncryptedDataList) pgpF.nextObject();
-        }
+            if (o instanceof PGPEncryptedDataList) {
+                enc = (PGPEncryptedDataList) o;
+            } else {
+                enc = (PGPEncryptedDataList) pgpF.nextObject();
+            }
 
-        PGPPBEEncryptedData pbe = (PGPPBEEncryptedData) enc.get(0);
+            pbe = (PGPPBEEncryptedData) enc.get(0);
 
-        InputStream clear = pbe.getDataStream(new BcPBEDataDecryptorFactory(
-                password.getChars(), new BcPGPDigestCalculatorProvider()));
+            InputStream clear = pbe.getDataStream(
+                    new BcPBEDataDecryptorFactory(password.getChars(), new BcPGPDigestCalculatorProvider()));
 
+            BcPGPObjectFactory pgpFact = new BcPGPObjectFactory(clear);
 
-        BcPGPObjectFactory pgpFact = new BcPGPObjectFactory(clear);
-
-        o = pgpFact.nextObject();
-        if (o instanceof PGPCompressedData) {
-            PGPCompressedData   cData = (PGPCompressedData) o;
-            pgpFact = new BcPGPObjectFactory(cData.getDataStream());
             o = pgpFact.nextObject();
+            if (o instanceof PGPCompressedData) {
+                PGPCompressedData cData = (PGPCompressedData) o;
+                pgpFact = new BcPGPObjectFactory(cData.getDataStream());
+                o = pgpFact.nextObject();
+            }
+
+            PGPLiteralData ld = (PGPLiteralData) o;
+            InputStream unc = ld.getInputStream();
+
+            try {
+                outputStream = new ByteArrayOutputStream();
+
+                Streams.pipeAll(unc, outputStream);
+            } finally {
+                if (outputStream != null) {
+                    outputStream.close();
+                }
+            }
+        } finally {
+            in.close();
         }
 
-        PGPLiteralData ld = (PGPLiteralData) o;
-        InputStream unc = ld.getInputStream();
-
-        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-
-        Streams.pipeAll(unc, outputStream);
-
-        outputStream.close();
-
         if (pbe.isIntegrityProtected()) {
             if (!pbe.verify()) {
                 throw new PGPException("Integrity check failed.");
diff --git a/pgpainless-core/src/test/java/org/pgpainless/BCUtilTest.java b/pgpainless-core/src/test/java/org/pgpainless/BCUtilTest.java
index 3e8dea69..587b7362 100644
--- a/pgpainless-core/src/test/java/org/pgpainless/BCUtilTest.java
+++ b/pgpainless-core/src/test/java/org/pgpainless/BCUtilTest.java
@@ -106,6 +106,7 @@ public class BCUtilTest extends AbstractPGPainlessTest {
     @Test
     public void removeUnsignedKeysTest()
             throws PGPException, NoSuchAlgorithmException, NoSuchProviderException, InvalidAlgorithmParameterException {
+        @SuppressWarnings("deprecation")
         PGPKeyRing alice = PGPainless.generateKeyRing().simpleRsaKeyRing("alice@wonderland.lit", RsaLength._1024);
         PGPKeyRing mallory = PGPainless.generateKeyRing().simpleEcKeyRing("mallory@mall.ory");
 
diff --git a/pgpainless-core/src/test/java/org/pgpainless/LengthTest.java b/pgpainless-core/src/test/java/org/pgpainless/LengthTest.java
index 7b4dd2c2..92ff9f20 100644
--- a/pgpainless-core/src/test/java/org/pgpainless/LengthTest.java
+++ b/pgpainless-core/src/test/java/org/pgpainless/LengthTest.java
@@ -59,7 +59,9 @@ public class LengthTest extends AbstractPGPainlessTest {
             throws PGPException, NoSuchAlgorithmException, NoSuchProviderException, InvalidAlgorithmParameterException,
             IOException {
         LOGGER.log(Level.INFO, "\nRSA-2048 -> RSA-2048");
+        @SuppressWarnings("deprecation")
         PGPKeyRing sender = PGPainless.generateKeyRing().simpleRsaKeyRing("simplejid@server.tld", RsaLength._2048);
+        @SuppressWarnings("deprecation")
         PGPKeyRing recipient = PGPainless.generateKeyRing().simpleRsaKeyRing("otherjid@other.srv", RsaLength._2048);
         encryptDecryptForSecretKeyRings(sender, recipient);
     }
@@ -78,6 +80,7 @@ public class LengthTest extends AbstractPGPainlessTest {
     public void rsaEc() throws PGPException, IOException, InvalidAlgorithmParameterException, NoSuchAlgorithmException,
             NoSuchProviderException {
         LOGGER.log(Level.INFO, "\nRSA-2048 -> EC");
+        @SuppressWarnings("deprecation")
         PGPKeyRing sender = PGPainless.generateKeyRing().simpleRsaKeyRing("simplejid@server.tld", RsaLength._2048);
         PGPKeyRing recipient = PGPainless.generateKeyRing().simpleEcKeyRing("otherjid@other.srv");
         encryptDecryptForSecretKeyRings(sender, recipient);
@@ -89,6 +92,7 @@ public class LengthTest extends AbstractPGPainlessTest {
             IOException {
         LOGGER.log(Level.INFO, "\nEC -> RSA-2048");
         PGPKeyRing sender = PGPainless.generateKeyRing().simpleEcKeyRing("simplejid@server.tld");
+        @SuppressWarnings("deprecation")
         PGPKeyRing recipient = PGPainless.generateKeyRing().simpleRsaKeyRing("otherjid@other.srv", RsaLength._2048);
         encryptDecryptForSecretKeyRings(sender, recipient);
     }