eclipse-jdt/eclipse.jdt.core

Stars: 237
Forks: 195
Open beginner issues: 0
Indexed issues: 686
Avg merge: 1d 10h
Merged PRs (30d): 45

Dominant language: Java
License: EPL-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

Open All

686 open issues indexed

Exception formatting code with misplaced Javadoc Open

bug

eclipse-jdt/eclipse.jdt.core#33 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
ReconcilerTests.testBug36032* need the indexer Open

eclipse-jdt/eclipse.jdt.core#82 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
code assist behaves differently in two places Open

eclipse-jdt/eclipse.jdt.core#93 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Eclipse compiles code that shouldn't compile, when resolving overloads from inferred type Open

compiler javac

eclipse-jdt/eclipse.jdt.core#99 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
organize import does not work any more on lombok classes "val" or annotations Open

eclipse-jdt/eclipse.jdt.core#108 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[Feature Request] Allow the index engine to use pre-calculated index files for popular jars Open

eclipse-jdt/eclipse.jdt.core#110 · 1 comment · 3 reactions · 0 assignees · Indexed Sep 15, 2026
Eclipse 2021-12 - Error : Source file already created Open

eclipse-jdt/eclipse.jdt.core#111 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Test JavaIndexTests.testIndexInJar() failing on Windows Open

eclipse-jdt/eclipse.jdt.core#112 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ArrayIndexOutOfBoundsException for Ctrl+Shift+G find references Open

bug java search

eclipse-jdt/eclipse.jdt.core#115 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Incremental build calls the annotation processor for modified source files and ignore already compiled source files Open

eclipse-jdt/eclipse.jdt.core#116 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Adjust preview API error reporting based on new JavaSE API Open

eclipse-jdt/eclipse.jdt.core#121 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Code compiling in javac does not compile in eclipse Open

bug compiler

eclipse-jdt/eclipse.jdt.core#136 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Debugger generates bad code for generics - The type Object is not a valid substitute Open

eclipse-jdt/eclipse.jdt.core#141 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Full qualified class names for tooltips when class names are the same regardless of generics Open

eclipse-jdt/eclipse.jdt.core#145 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Javadoc code completion for inline tags misses a space Open

eclipse-jdt/eclipse.jdt.core#139 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Cannot organize import for static import Open

eclipse-jdt/eclipse.jdt.core#149 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Formatter - function call wrapping issue when only one invocation Open

eclipse-jdt/eclipse.jdt.core#151 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
InvocationTargetException trying to refactor class name Open

eclipse-jdt/eclipse.jdt.core#154 · 14 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Error shown after project clean which goes away when editing the class file Open

bug compiler

eclipse-jdt/eclipse.jdt.core#189 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
eclipse hangs when saving a java file Open

bug

eclipse-jdt/eclipse.jdt.core#200 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Organize Imports not using order from settings Open

eclipse-jdt/eclipse.jdt.core#208 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Allow batch compiler to ignore a missing preferences file Open

eclipse-jdt/eclipse.jdt.core#211 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[API] New api in IMethodBinding to get the method JVM method signature Open

enhancement

eclipse-jdt/eclipse.jdt.core#223 · 4 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
ECJ error due to type inference problem with generic method Open

bug compiler

eclipse-jdt/eclipse.jdt.core#224 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Calls from ClasspathJrt* into JRTUtil should respect --release Open

eclipse-jdt/eclipse.jdt.core#238 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
compiler.batch.FileSystem.getClasspath() may return ClasspathJar for non existing classpath entry Open

eclipse-jdt/eclipse.jdt.core#258 · 20 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[formatter] Wrapping indent on column Open

eclipse-jdt/eclipse.jdt.core#260 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Where to find the changelog for ECJ compiler versions? Open

help wanted

eclipse-jdt/eclipse.jdt.core#262 · 4 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
Compiler should allow method annotations between type parameters and return type Open

eclipse-jdt/eclipse.jdt.core#271 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[compiler] Compile error with Eclipse, but not with javac Open

javac

eclipse-jdt/eclipse.jdt.core#273 · 11 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
External snippet files with Java 18 Open

eclipse-jdt/eclipse.jdt.core#276 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Compile error with level 11 not with 8 Open

eclipse-jdt/eclipse.jdt.core#279 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
java.lang.ArrayIndexOutOfBoundsException on creation of type hierarchy Open

eclipse-jdt/eclipse.jdt.core#280 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
NPE in BinaryModuleBinding.create() during incremental compile Open

bug

eclipse-jdt/eclipse.jdt.core#284 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
when saying "The package javax.xml is accessible from more than one module: <unnamed>, java.xml", pls say which jar or class-folder contains the "unnamed" Open

eclipse-jdt/eclipse.jdt.core#287 · 8 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Code snippets: In Javadoc view code snippets referring to classes or files ignore @link modifications Open

eclipse-jdt/eclipse.jdt.core#302 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Formatting incorrect when using Inline Refactoring on method within switch expression Open

eclipse-jdt/eclipse.jdt.core#305 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Exception occurred during compilation unit conversion Open

compiler

eclipse-jdt/eclipse.jdt.core#324 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ClassCastException: org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding-> org.eclipse.jdt.internal.compiler.lookup.LocalTypeBinding Open

eclipse-jdt/eclipse.jdt.core#329 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
eclipse ant build for 'Separate JRE jdk1.6.0_45' returns error Could not find the main class: org.eclipse.ant.internal.launching.remote InternalAntRunner. Open

eclipse-jdt/eclipse.jdt.core#343 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[content assist] Ordering in the completion list is not as expected Open

help wanted

eclipse-jdt/eclipse.jdt.core#347 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[build][test] EncodingTests#test021 Fails in build Open

build test failure

eclipse-jdt/eclipse.jdt.core#364 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Inconsitent generics infererence between ECJ and the JDK compiler Open

compiler javac

eclipse-jdt/eclipse.jdt.core#366 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Eclipse compiler can determine intended varargs method while javac complains method ambiguous Open

compiler

eclipse-jdt/eclipse.jdt.core#370 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Publish ecj-sources (org.eclipse.jdt.core.compiler.batch.source) in p2 repo Open

eclipse-jdt/eclipse.jdt.core#384 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Consider support for JSpecify nulllness (when the time is right) Open

null

eclipse-jdt/eclipse.jdt.core#390 · 1 comment · 3 reactions · 0 assignees · Indexed Sep 15, 2026
Invalid unused import warning Open

bug

eclipse-jdt/eclipse.jdt.core#392 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Pressing CTRL-R cause Error Open

eclipse-jdt/eclipse.jdt.core#394 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Eclipse 2022-09 Content Assist provides wrong order for lambdas with partial function name Open

eclipse-jdt/eclipse.jdt.core#395 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Adding CompletionTests19 and JavaSearchBugs19Tests to test suite causes unrelated failure Open

eclipse-jdt/eclipse.jdt.core#412 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

A short digest of beginner-friendly GitHub issues.