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javaparser

6 indexed repositories · View on GitHub

javaparser
Java 1-25 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.

Java · 6151 stars
javaparser-visited
Code samples for the book "JavaParser: Visited" https://leanpub.com/javaparservisited

Java · 103 stars
javaparser-maven-sample
Sample project with a basic Maven + JavaParser setup

Java · 99 stars
javasymbolsolver-maven-sample
Sample project with basic Maven + JavaSymbolSolver set up

Java · 40 stars
javaparser-gradle-sample
Sample project with a basic Gradle + JavaParser setup

Java · 2 stars
javaparser.github.io

JavaScript · 1 star

Beginner friendly Everything

Open All

Please make your signing keys available somewhere Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

javaparser/javaparser#5130 · Opened Sep 11, 2026
Method references cannot be resolved in assignment, cast, conditional, array initializer and lambda body contexts Open

javaparser/javaparser#5123 · 3 comments · 1 assignee · Opened Sep 3, 2026
Retain skipped tokens during error recovery as a first-class AST node (opt-in UnparsedBlockStatement) Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

javaparser/javaparser#5114 · Opened Aug 31, 2026
Problems with resolved declaration interfaces Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

javaparser/javaparser#5104 · Opened Aug 25, 2026
Reconcile TestParser with JavaParserAdapter to remove duplicated parsing logic Open

Improvement

Difficulty 3/5 1-2 days Newbie friendliness 58/100

javaparser/javaparser#5078 · 1 comment · Opened Jul 26, 2026
Test stability: tests mutate the global StaticJavaParser configuration Open

javaparser/javaparser#5077 · 3 comments · 1 assignee · Opened Jul 25, 2026
Method Resolution fails for Parameters of Primitive Array Types Open

Bug report Symbol Solver

Difficulty 2/5 Half a day Newbie friendliness 74/100

javaparser/javaparser#5065 · 2 comments · Opened Jul 16, 2026
Bug/Enhancement: NoCommentEqualsVisitorGenerator uses a fragile blacklist, causing regression with MarkdownComment Open

Difficulty 3/5 1-2 days Newbie friendliness 70/100

javaparser/javaparser#5056 · 2 comments · Opened Jul 3, 2026
Simplify EqualsVisitor by extending NoCommentEqualsVisitor Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

javaparser/javaparser#5055 · 4 comments · Opened Jul 3, 2026
RFC: Raising the minimum Java version — should we move to Java 11? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

javaparser/javaparser#5020 · 2 comments · 1 reaction · Opened May 19, 2026
MethodCallExpr.resolve() throws IllegalStateException: Symbol resolution not configured on JDK 25 Open

Need test case

Difficulty 4/5 3-5 days Newbie friendliness 42/100

javaparser/javaparser#5015 · 4 comments · Opened May 14, 2026
Regression Resolving Method Declaration From Overloaded Function Call Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

javaparser/javaparser#4991 · Opened Mar 24, 2026
Automate JavaParser releases Open

builds / releases

Difficulty 5/5 Over a week Newbie friendliness 25/100

javaparser/javaparser#4987 · 2 comments · Opened Mar 9, 2026
JavaParser fails to resolve method calls when a non-essential interface in the hierarchy is missing Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

javaparser/javaparser#4985 · Opened Mar 7, 2026
Fix BlockStmtContext.typePatternExprsExposedToChild performance issue Open

Improvement

javaparser/javaparser#4975 · 1 comment · 1 assignee · Opened Feb 24, 2026
Method Resolution: Respecting Visibility in the Call Context Open

Bug report Symbol Solver

Difficulty 4/5 3-5 days Newbie friendliness 48/100

javaparser/javaparser#4969 · 5 comments · Opened Feb 5, 2026
Website documentation says "Java 12" but GitHub and current releases support Java up to 24 Open

Documentation

Difficulty 1/5 Under an hour Newbie friendliness 45/100

javaparser/javaparser#4948 · 1 comment · Opened Jan 9, 2026
MethodCallExpr.resolve() on record getter error Open

Bug report Need test case Symbol Solver

Difficulty 4/5 3-5 days Newbie friendliness 38/100

javaparser/javaparser#4939 · 13 comments · Opened Dec 23, 2025
XmlPrinter: Generates incorrect XML output. Open

Low priority

Difficulty 3/5 1-2 days Newbie friendliness 45/100

javaparser/javaparser#4937 · 1 comment · Opened Dec 21, 2025
MethodAmbiguityException: Ambiguous method call: cannot find a most applicable method. Open

Bug report Symbol Solver

Difficulty 3/5 1-2 days Newbie friendliness 48/100

javaparser/javaparser#4935 · 3 comments · 1 reaction · Opened Dec 21, 2025
Inferred lambda parameter type when the function is imported statically Open

Bug report Symbol Solver

Difficulty 4/5 3-5 days Newbie friendliness 42/100

javaparser/javaparser#4917 · 8 comments · Opened Dec 8, 2025
Refactor or remove deprecated PrettyPrintVisitor Open

housekeeping

Difficulty 4/5 3-5 days Newbie friendliness 45/100

javaparser/javaparser#4914 · 1 comment · Opened Dec 4, 2025
JavaParser LexicalPreservingPrinter fails when adding field using getType(0) Open

Need more input

Difficulty 3/5 1-2 days Newbie friendliness 45/100

javaparser/javaparser#4898 · 1 comment · 1 reaction · Opened Nov 20, 2025
JEP 502 : Scoped Values (Impact to be analysed) Open

Java 25 support

Difficulty 5/5 Over a week Newbie friendliness 25/100

javaparser/javaparser#4850 · Opened Sep 23, 2025
A relational expression can also be an instanceof expression Open

Grammar Improvement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

javaparser/javaparser#4842 · 2 comments · Opened Sep 20, 2025
UnresolvedSymbolException in chained lamba when input is inferred from another lambda Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

javaparser/javaparser#4831 · 1 reaction · Opened Sep 9, 2025
UnsupportedOperationException removing patterns from sealed class with lexical preservation Open

Bug report Concrete Syntax Model (CSM)

Difficulty 3/5 1-2 days Newbie friendliness 48/100

javaparser/javaparser#4830 · 4 comments · Opened Sep 8, 2025
Groovydoc: Fail to generate javadoc Open

Question (general)

Difficulty 4/5 3-5 days Newbie friendliness 30/100

javaparser/javaparser#4826 · 1 comment · Opened Sep 4, 2025
Method reference argument incorrectly resolved and makes method call resolution failed. Open

Bug report Symbol Solver

Difficulty 3/5 1-2 days Newbie friendliness 35/100

javaparser/javaparser#4812 · 2 comments · Opened Aug 12, 2025
Method call resolving is failed in anonymous class when it refers to outer class method declaration Open

Bug report Symbol Solver

Difficulty 4/5 3-5 days Newbie friendliness 35/100

javaparser/javaparser#4803 · 3 comments · Opened Aug 1, 2025
Unconsidered inference scenario where instantiation using diamond operator causes resolution failed in the following usage Open

Bug report Symbol Solver

Difficulty 4/5 3-5 days Newbie friendliness 35/100

javaparser/javaparser#4802 · 2 comments · Opened Aug 1, 2025
🐛 UnsupportedOperationException removing permits Open

Need test case

Difficulty 3/5 1-2 days Newbie friendliness 45/100

javaparser/javaparser#4801 · 3 comments · Opened Jul 24, 2025
Safer - Compatible Updates to Fix Vulnerable Dependencies Open

Difficulty 4/5 3-5 days Newbie friendliness 15/100

javaparser/javaparser-visited#41 · Opened Jul 16, 2025
Symbol solver is unable to resolve inherited nested classes from different compilation units Open

Bug report Symbol Solver

Difficulty 3/5 1-2 days Newbie friendliness 42/100

javaparser/javaparser#4753 · 8 comments · Opened May 12, 2025
Lexical preserving keeps cleared scopes Open

Bug report Lexical Preservation

Difficulty 3/5 1-2 days Newbie friendliness 45/100

javaparser/javaparser#4746 · 3 comments · Opened May 6, 2025
Memory leakage issue Open

Need test case

Difficulty 4/5 3-5 days Newbie friendliness 25/100

javaparser/javaparser#4743 · 5 comments · Opened Apr 28, 2025
JavaDoc Open

Question (general)

Difficulty 5/5 Over a week Newbie friendliness 15/100

javaparser/javaparser#4740 · 1 comment · Opened Apr 24, 2025
Unable to delete all comments using the accept method Open

Question (JP usage)

Difficulty 3/5 1-2 days Newbie friendliness 45/100

javaparser/javaparser#4738 · 2 comments · Opened Apr 21, 2025
I want to know if JavaParser can directly parse the api of third-party libraries and then obtain the corresponding declaration type? Open

Question (JP usage)

Difficulty 5/5 Over a week Newbie friendliness 20/100

javaparser/javaparser#4734 · 1 comment · Opened Apr 17, 2025
UnsolvedSymbolException{context='null', name='ObjectMapper', cause='null'} Open

Need test case

Difficulty 4/5 3-5 days Newbie friendliness 25/100

javaparser/javaparser#4733 · 1 comment · Opened Apr 17, 2025
StackOverflowError when resolving nested inner class creation with recursive field access Open

Bug report Symbol Solver

Difficulty 3/5 1-2 days Newbie friendliness 45/100

javaparser/javaparser#4673 · 2 comments · Opened Feb 11, 2025
"lófasz" in the source code Open

Question (general)

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

javaparser/javaparser#4669 · 1 comment · 15 reactions · Opened Feb 7, 2025
Comment Parsing - Inconsistent Comment parsing from Method Declaration Open

Question (AST)

Difficulty 3/5 1-2 days Newbie friendliness 55/100

javaparser/javaparser#4652 · 4 comments · Opened Jan 14, 2025
UnsolvedSymbolException{context='null', name='Method 'length' cannot be resolved in context x.length() (line: 7) MethodCallExprContext{wrapped=x.length()}. Parameter types: []', cause='null'} Open

Bug report Symbol Solver

Difficulty 4/5 3-5 days Newbie friendliness 35/100

javaparser/javaparser#4642 · 3 comments · Opened Jan 3, 2025
The handling of generics does not seem to establish a strong context, leading to ambiguity in method calls - release version 3.26.2 Open

Bug report Symbol Solver

Difficulty 4/5 3-5 days Newbie friendliness 45/100

javaparser/javaparser#4628 · Opened Dec 4, 2024
java.lang.UnsupportedOperationException: com.github.javaparser.resolution.types.ResolvedWildcard Open

Bug report Symbol Solver

Difficulty 4/5 3-5 days Newbie friendliness 35/100

javaparser/javaparser#4625 · 1 comment · Opened Nov 29, 2024
Consider removing hashcode and equals? Open

Question (JP usage)

Difficulty 5/5 Over a week Newbie friendliness 25/100

javaparser/javaparser#4588 · 3 comments · Opened Oct 20, 2024
LexicalPreservingPrinter performance Open

Improvement

Difficulty 4/5 3-5 days Newbie friendliness 28/100

javaparser/javaparser#4551 · 7 comments · Opened Sep 4, 2024
Out of Memory Error with `sourceZip` API while trying to parse java's Core Library by javaparser Open

Improvement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

javaparser/javaparser#4516 · 2 comments · Opened Aug 7, 2024
Arbitrary new line when refactoring Open

Improvement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

javaparser/javaparser#4395 · 7 comments · Opened Apr 28, 2024

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