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Eclipse 2025-03: Update features to show; add narration and sample code
1 parent bceb847 commit 3b6645d

40 files changed

+235
-400
lines changed

‎README.md

+33-30
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‎intro_outro_thumbnail.svg

+19-17
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‎narration.odt

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‎reset_workspace_and_installation.bat

+3-2
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@@ -1,4 +1,4 @@
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set IDE=java-2024-09
1+
set IDE=java-2025-03
22
set REPO=sample
33

44
set ECLIPSE_DIR=%USERPROFILE%\eclipse\%IDE%
@@ -14,6 +14,7 @@ set REPO_ZIP=%USERPROFILE%\git\%REPO%.7z
1414
::echo|set/p=^^^<project.build.sourceEncoding^^^>UTF-8^^^</project.build.sourceEncoding^^^>|clip
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::echo|set/p=""C:\Program Files\Java\jdk-20-ea\bin\javac^" -d . src\main\java\BytecodeSample.java"|clip
1616
::echo|set/p="C:\Program Files\Eclipse Adoptium\jdk-22.0.1.8-hotspot"|clip
17+
(echo if ^^^(this == null^^^) return null;&echo String str= "";&echo for ^^^(int i = 0; i ^^^< this.length; i++^^^) {&echo ^^^ str+= "["+ i + "]: " + this[i] + "\n";&echo }&echo return str;) | clip
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1819
dir "%ECLIPSE_DIR%\p2"
1920

@@ -22,7 +23,7 @@ IF NOT exist "%ECLIPSE_DIR%" (echo Eclipse installation missing: %ECLIPSE_DIR% &
2223
IF NOT exist "%ECLIPSE_P2_CONFIG_ZIP%" (echo Backup of Eclipse p2/configuration missing: %ECLIPSE_P2_CONFIG_ZIP% && pause && exit 1)
2324
IF NOT exist "%ECLIPSE_WORKSPACE%\.metadata" (echo Workspace missing: %ECLIPSE_WORKSPACE% && pause && exit 1)
2425
::IF NOT exist "%ECLIPSE_WORKSPACE_ZIP%" (echo Backup of workspace missing: %ECLIPSE_WORKSPACE_ZIP% && pause && exit 1)
25-
IF NOT exist "%REPO_DIR%\.git" (echo Git repository missing: %REPO_DIR% && pause && exit 1)
26+
::IF NOT exist "%REPO_DIR%\.git" (echo Git repository missing: %REPO_DIR% && pause && exit 1)
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:: restore Git repository
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::rmdir /s /q "%REPO_DIR%"

‎sample_code/Eclipse_2024-12_Improvements/.classpath renamed to ‎sample_code/Eclipse 2025-03 Improvements/.classpath

+2-2
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@@ -26,7 +26,7 @@
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<attribute name="optional" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-23">
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
@@ -37,4 +37,4 @@
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</attributes>
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</classpathentry>
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<classpathentry kind="output" path="target/classes"/>
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</classpath>
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</classpath>

‎sample_code/Eclipse_2024-12_Improvements/.project renamed to ‎sample_code/Eclipse 2025-03 Improvements/.project

+2-2
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@@ -1,6 +1,6 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>Eclipse 2024-12 Improvements</name>
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<name>Eclipse 2025-03 Improvements</name>
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<comment></comment>
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<projects>
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</projects>
@@ -20,4 +20,4 @@
2020
<nature>org.eclipse.jdt.core.javanature</nature>
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<nature>org.eclipse.m2e.core.maven2Nature</nature>
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</natures>
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</projectDescription>
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</projectDescription>

‎sample_code/Eclipse_2024-12_Improvements/.settings/org.eclipse.core.resources.prefs renamed to ‎sample_code/Eclipse 2025-03 Improvements/.settings/org.eclipse.core.resources.prefs

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eclipse.preferences.version=1
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encoding//src/main/java=UTF-8
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encoding//src/test/java=UTF-8
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encoding//src/main/resources=UTF-8
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encoding/<project>=UTF-8

‎sample_code/Eclipse 2025-03 Improvements/.settings/org.eclipse.jdt.core.prefs

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eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
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org.eclipse.jdt.core.compiler.compliance=21
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org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
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org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
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org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
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org.eclipse.jdt.core.compiler.release=enabled
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org.eclipse.jdt.core.compiler.source=21

‎sample_code/Eclipse 2025-03 Improvements/pom.xml

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1+
<!--
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Copyright (c) 2025 Holger Voormann and others.
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This program and the accompanying materials
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are made available under the terms of the Eclipse Public License 2.0
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which accompanies this distribution, and is available at
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https://www.eclipse.org/legal/epl-2.0/
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SPDX-License-Identifier: EPL-2.0
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-->
11+
<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
13+
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
15+
<groupId>com.example</groupId>
16+
<artifactId>Eclipse_2025-03_Improvements</artifactId>
17+
<version>0.0.1-SNAPSHOT</version>
18+
<properties>
19+
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<maven.compiler.release>21</maven.compiler.release>
21+
</properties>
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<build>
23+
<plugins>
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<plugin>
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<groupId>org.apache.felix</groupId>
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<artifactId>maven-bundle-plugin</artifactId>
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<version>6.0.0</version>
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<extensions>true</extensions>
29+
<configuration>
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<instructions>
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<!--
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New: completions for `bnd-maven-plugin` and `felix-bundle-plugin`
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-->
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36+
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</instructions>
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</configuration>
39+
</plugin>
40+
</plugins>
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</build>
42+
</project>

‎sample_code/Eclipse 2025-03 Improvements/src/main/java/Issue.java

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1+
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sealed abstract class Issue permits Bug, FeatureRequest {
3+
4+
// ...
5+
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}
7+
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final class Bug extends Issue {}
9+
final class FeatureRequest extends Issue {}

‎sample_code/Eclipse 2025-03 Improvements/src/main/java/JavacBoom200.java

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1+
import java.util.*;
2+
3+
// see https://github.com/eclipse-jdt/eclipse.jdt.core/issues/3590
4+
class JavacBoom200 {
5+
List<Map.Entry<String, String>> data = Arrays.asList(
6+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
7+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
8+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
9+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
10+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
11+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
12+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
13+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
14+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
15+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
16+
17+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
18+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
19+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
20+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
21+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
22+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
23+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
24+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
25+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"),
26+
Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value"), Map.entry("key", "value")
27+
);
28+
}

‎sample_code/Eclipse 2025-03 Improvements/src/main/java/Sample.java

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import java.awt.Point;
2+
import java.util.ArrayList;
3+
import java.util.List;
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import java.util.regex.Pattern;
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class Sample {
6+
7+
void report(Issue issue) {
8+
9+
}
10+
11+
// Preferences: "Java > Editor > Folding: Extended folding"
12+
public String[] split(String regex, CharSequence input, int limit, boolean withDelimiters) {
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int matchCount = 0;
14+
int index = 0;
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boolean matchLimited = limit > 0;
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var matchList = new ArrayList<String>();
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var m = Pattern.compile(regex).matcher(input);
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// Add segments before each match found
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while(m.find()) {
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if (!matchLimited || matchCount < limit - 1) {
22+
if (index == 0 && index == m.start() && m.start() == m.end()) {
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// no empty leading substring included for zero-width match
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// at the beginning of the input char sequence.
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continue;
26+
}
27+
String match = input.subSequence(index, m.start()).toString();
28+
matchList.add(match);
29+
index = m.end();
30+
if (withDelimiters) {
31+
matchList.add(input.subSequence(m.start(), index).toString());
32+
}
33+
++matchCount;
34+
} else if (matchCount == limit - 1) { // last one
35+
String match = input.subSequence(index, input.length()).toString();
36+
matchList.add(match);
37+
index = m.end();
38+
++matchCount;
39+
}
40+
}
41+
42+
// If no match was found, return this
43+
if (index == 0)
44+
return new String[] {input.toString()};
45+
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// Add remaining segment
47+
if (!matchLimited || matchCount < limit)
48+
matchList.add(input.subSequence(index, input.length()).toString());
49+
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// Construct result
51+
int resultSize = matchList.size();
52+
if (limit == 0) {
53+
while (resultSize > 0 && matchList.get(resultSize-1).isEmpty()) {
54+
resultSize--;
55+
}
56+
}
57+
String[] result = new String[resultSize];
58+
return matchList.subList(0, resultSize).toArray(result);
59+
}
60+
61+
// Variables view: compare, exceptions with stack traces and custom formatters for primitives
62+
public static void main(String... args) {
63+
sample(1, 2, 3);
64+
}
65+
public static void sample(int... numbers) {
66+
67+
// lists
68+
var list1 = List.of("aaa", "bbb", "ccc");
69+
var list2 = new ArrayList<String>(list1);
70+
var list3 = new ArrayList<String>();
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list2.remove(1);
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list3.addAll(list1);
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// objects
75+
var a = new Point();
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var b = new Point();
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a.x = b.x = 2;
78+
b.y = 7;
79+
80+
try {
81+
System.out.println(numbers[3]);
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} catch (Exception e) {
83+
System.out.println(e.getMessage());
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}
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}
87+
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}

‎sample_code/Eclipse 2025-03 Improvements/src/main/resources/.gitkeep

Whitespace-only changes.

‎sample_code/Eclipse 2025-03 Improvements/src/test/java/.gitkeep

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‎sample_code/Eclipse 2025-03 Improvements/src/test/resources/.gitkeep

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‎sample_code/Eclipse_2024-12_Improvements/.gitignore

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‎sample_code/Eclipse_2024-12_Improvements/.settings/org.eclipse.jdt.core.prefs

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‎sample_code/Eclipse_2024-12_Improvements/pom.xml

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