fix(core): remove features that not supported on Java 11

2 files changed, 2 insertions, 2 deletions

diff --git a/eaaf_core_utils/src/main/java/at/gv/egiz/eaaf/core/impl/credential/inline/InlineKeyStoreParser.java b/eaaf_core_utils/src/main/java/at/gv/egiz/eaaf/core/impl/credential/inline/InlineKeyStoreParser.java
index 52afd2dd..c9bb48df 100644
--- a/eaaf_core_utils/src/main/java/at/gv/egiz/eaaf/core/impl/credential/inline/InlineKeyStoreParser.java
+++ b/eaaf_core_utils/src/main/java/at/gv/egiz/eaaf/core/impl/credential/inline/InlineKeyStoreParser.java
@@ -57,7 +57,7 @@ public class InlineKeyStoreParser extends URLStreamHandler {
     // parse basis properties from URL
     final Map<String, List<String>> queryParams = parseQuery(configUrl.getQuery());
     final String[] certificateFiles = queryParams.getOrDefault("cert", Collections.emptyList())
-        .toArray(String[]::new);
+        .stream().toArray(String[]::new);
 
     if ("keystore".equalsIgnoreCase(configUrl.getPath())) {
       parseKeyStore(keyStoreBuilder, queryParams, certificateFiles);
diff --git a/eaaf_core_utils/src/main/java/at/gv/egiz/eaaf/core/impl/data/ExceptionContainer.java b/eaaf_core_utils/src/main/java/at/gv/egiz/eaaf/core/impl/data/ExceptionContainer.java
index e7f952e4..ddc9a4d2 100644
--- a/eaaf_core_utils/src/main/java/at/gv/egiz/eaaf/core/impl/data/ExceptionContainer.java
+++ b/eaaf_core_utils/src/main/java/at/gv/egiz/eaaf/core/impl/data/ExceptionContainer.java
@@ -58,7 +58,7 @@ public class ExceptionContainer implements Serializable {
   private static final Set<Class<?>> ALLOWED_CLASS_TYPES = Stream.of(
       Throwable.class, StackTraceElement.class, StackTraceElement[].class, Collections.EMPTY_LIST.getClass(),
       Integer.class, Long.class, Double.class, Float.class, String.class, Number.class)
-      .collect(Collectors.toUnmodifiableSet());
+      .collect(Collectors.toSet());
       
   /**
    * Error that was thrown.