Fix warning that fails the build with Tycho 2.1.0.

It uses jdt.core 3.23.0 which gives the false positive warning:
Compiling 48 source files to
/home/jenkins/agent/workspace/rt.equinox.bundles-Gerrit/bundles/org.eclipse.equinox.preferences/target/classes
[WARNING]
/home/jenkins/agent/workspace/rt.equinox.bundles-Gerrit/bundles/org.eclipse.equinox.preferences/src/org/eclipse/core/internal/preferences/SortedProperties.java:[18]
	import java.util.Map.Entry;
	       ^^^^^^^^^^^^^^^^^^^
The import java.util.Map.Entry is never used
1 problem (1 warning)
error: warnings found and -failOnWarning specified

Not reporting ecj bug as 4.18 stream version no longer shows the issue
so it seems fixed.

Change-Id: Idc38378e56f45e88e6eec20985c07c84d96c84c5
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
diff --git a/bundles/org.eclipse.equinox.preferences/META-INF/MANIFEST.MF b/bundles/org.eclipse.equinox.preferences/META-INF/MANIFEST.MF
index 681e530..82eb1bf 100644
--- a/bundles/org.eclipse.equinox.preferences/META-INF/MANIFEST.MF
+++ b/bundles/org.eclipse.equinox.preferences/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.equinox.preferences; singleton:=true
-Bundle-Version: 3.8.0.qualifier
+Bundle-Version: 3.8.100.qualifier
 Bundle-Activator: org.eclipse.core.internal.preferences.Activator
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
diff --git a/bundles/org.eclipse.equinox.preferences/pom.xml b/bundles/org.eclipse.equinox.preferences/pom.xml
index 19ee38c..16cdd09 100644
--- a/bundles/org.eclipse.equinox.preferences/pom.xml
+++ b/bundles/org.eclipse.equinox.preferences/pom.xml
@@ -19,6 +19,6 @@
   </parent>
   <groupId>org.eclipse.equinox</groupId>
   <artifactId>org.eclipse.equinox.preferences</artifactId>
-  <version>3.8.0-SNAPSHOT</version>
+  <version>3.8.100-SNAPSHOT</version>
   <packaging>eclipse-plugin</packaging>
 </project>
diff --git a/bundles/org.eclipse.equinox.preferences/src/org/eclipse/core/internal/preferences/SortedProperties.java b/bundles/org.eclipse.equinox.preferences/src/org/eclipse/core/internal/preferences/SortedProperties.java
index bffe300..37ad44b 100644
--- a/bundles/org.eclipse.equinox.preferences/src/org/eclipse/core/internal/preferences/SortedProperties.java
+++ b/bundles/org.eclipse.equinox.preferences/src/org/eclipse/core/internal/preferences/SortedProperties.java
@@ -15,7 +15,6 @@
 package org.eclipse.core.internal.preferences;
 
 import java.util.*;
-import java.util.Map.Entry;
 
 /**
  * A {@link Properties} class whose entries are sorted by key; can <strong>only</strong> be used in limited scenarios
@@ -43,13 +42,13 @@
 	}
 
 	@Override
-	public Set<Entry<Object, Object>> entrySet() {
-		TreeSet<Entry<Object, Object>> set = new TreeSet<>((Entry<Object, Object> e1, Entry<Object, Object> e2) -> {
+	public Set<Map.Entry<Object, Object>> entrySet() {
+		TreeSet<Map.Entry<Object, Object>> set = new TreeSet<>((Map.Entry<Object, Object> e1, Map.Entry<Object, Object> e2) -> {
 			String s1 = (String) e1.getKey();
 			String s2 = (String) e2.getKey();
 			return s1.compareTo(s2);
 		});
-		for (java.util.Map.Entry<Object, Object> entry : super.entrySet()) {
+		for (Map.Entry<Object, Object> entry : super.entrySet()) {
 			set.add(entry);
 		}
 		return set;