SVY-15100 Eclipse bug for showing the context help (null pointer)

patch on top of the plain copy from eclipse

org.eclipse.e4.ui.workbench.swt/.gitignore

@@ -0,0 +1 @@
+/target/

org.eclipse.e4.ui.workbench.swt/META-INF/MANIFEST.MF

@@ -1,7 +1,7 @@
 Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-SymbolicName: org.eclipse.e4.ui.workbench.swt;singleton:=true
-Bundle-Version: 0.14.900.qualifier
+Bundle-Version: 0.14.900.v20200213-1442
 Bundle-Name: %pluginName
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin

org.eclipse.e4.ui.workbench.swt/pom.xml

@@ -0,0 +1,67 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Copyright (c) 2012, 2019 Eclipse Foundation and others.
+  All rights reserved. This program and the accompanying materials
+  are made available under the terms of the Eclipse Distribution License v1.0
+  which accompanies this distribution, and is available at
+  http://www.eclipse.org/org/documents/edl-v10.php
+
+  Contributors:
+     Igor Fedorenko - initial implementation
+     Lars Vogel <Lars.Vogel@vogella.com> - Bug 475688
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+ 	<parent>
+		<groupId>com.servoy</groupId>
+		<artifactId>servoy-eclipse</artifactId>
+		<version>2020.6.0.3581_rc2</version>
+	</parent>
+  <groupId>com.servoy</groupId>
+  <artifactId>org.eclipse.e4.ui.workbench.swt</artifactId>
+  <version>0.14.900.v20200213-1442</version>
+  <packaging>eclipse-plugin</packaging>
+
+  <properties>
+    <code.ignoredWarnings>-warn:-deprecation,raw,unchecked</code.ignoredWarnings>
+  </properties>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-dependency-plugin</artifactId>
+				<version>3.1.1</version>
+				<executions>
+					<execution>
+						<id>adjust the p2 osgi area to overwrite the eclipse plugin</id>
+						<phase>install</phase>
+						<goals>
+							<goal>copy</goal>
+						</goals>
+						<configuration>
+							<artifactItems>
+								<artifactItem>
+									<groupId>com.servoy</groupId>
+									<artifactId>org.eclipse.e4.ui.workbench.swt</artifactId>
+									<version>${project.version}</version>
+									<type>jar</type>
+									<overWrite>true</overWrite>
+									<outputDirectory>${settings.localRepository}/p2/osgi/bundle/org.eclipse.e4.ui.workbench.swt/${project.version}/</outputDirectory>
+								</artifactItem>
+								<artifactItem>
+									<groupId>com.servoy</groupId>
+									<artifactId>org.eclipse.e4.ui.workbench.swt</artifactId>
+									<version>${project.version}</version>
+									<type>xml</type>
+									<classifier>p2artifacts</classifier>
+									<overWrite>true</overWrite>
+									<outputDirectory>${settings.localRepository}/p2/osgi/bundle/org.eclipse.e4.ui.workbench.swt/${project.version}/</outputDirectory>
+								</artifactItem>
+							</artifactItems>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+</project>

org.eclipse.e4.ui.workbench.swt/src/org/eclipse/e4/ui/internal/workbench/swt/PartRenderingEngine.java

@@ -328,7 +328,8 @@ private void subscribeChildrenHandler(@EventTopic(UIEvents.ElementContainer.TOPI
 				// it's 'globally visible' and, if so, remove all other
 				// 'local' placeholders referencing the same element.
 				int newLocation = modelService.getElementLocation(added);
-				if (newLocation == EModelService.IN_SHARED_AREA || newLocation == EModelService.OUTSIDE_PERSPECTIVE) {
+				if (added instanceof MPlaceholder && (newLocation == EModelService.IN_SHARED_AREA
+						|| newLocation == EModelService.OUTSIDE_PERSPECTIVE)) {
 					MWindow topWin = modelService.getTopLevelWindowFor(added);
 					modelService.hideLocalPlaceholders(topWin, null);
 				}

pom.xml

@@ -269,6 +269,7 @@
 				<module>com.servoy.eclipse.notification</module>
 				<module>com.servoy.eclipse.ui.tweaks</module>
 				<module>org.eclipse.jface</module>
+				<module>org.eclipse.e4.ui.workbench.swt</module>
 				<module>j2db_documentation</module>
 			</modules>
 		</profile>