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Eric Milles updated GROOVY-11192: --------------------------------- Docs Text: 1st source file (TestCompilerCrashOnTemplateArgCount.groovy) {code:groovy} package com.x.y.z import groovy.transform.CompileStatic @CompileStatic class TestCompilerCrashOnTemplateArgCount { // The line below crashes Groovy Compiler with ArrayOutOfBoundsException during compilation because no type argument passed to MapLong<>() private Map<Long, String> map = new MapLong<>() // The line below doesn't crash the compiler: private Map<Long, String> map2 = new MapLong<String>() } {code} 2nd source file (MapLong.groovy): {code:groovy} package com.x.y.z import groovy.transform.CompileStatic @CompileStatic class MapLong<V> implements Map<Long, V> { int size() { return 0 } boolean isEmpty() { return false } boolean containsKey(Object key) { return false } boolean containsValue(Object value) { return false } V get(Object key) { return null } V put(Long key, V value) { return null } V remove(Object key) { return null } void putAll(Map<? extends Long, ? extends V> m) { } void clear() { } Set<Long> keySet() { return null } Collection<V> values() { return null } Set<Entry<Long, V>> entrySet() { return null } } {code} was: Below is the code that causes the compiler to crash during compilation. 1st source file (TestCompilerCrashOnTemplateArgCount.groovy) {code:groovy} package com.x.y.z import groovy.transform.CompileStatic @CompileStatic class TestCompilerCrashOnTemplateArgCount { // The line below crashes Groovy Compiler with ArrayOutOfBoundsException during compilation because no type argument passed to MapLong<>() private Map<Long, String> map = new MapLong<>() // The line below doesn't crash the compiler: private Map<Long, String> map2 = new MapLong<String>() } {code} 2nd source file (MapLong.groovy): {code:groovy} package com.x.y.z import groovy.transform.CompileStatic @CompileStatic class MapLong<V> implements Map<Long, V> { int size() { return 0 } boolean isEmpty() { return false } boolean containsKey(Object key) { return false } boolean containsValue(Object value) { return false } V get(Object key) { return null } V put(Long key, V value) { return null } V remove(Object key) { return null } void putAll(Map<? extends Long, ? extends V> m) { } void clear() { } Set<Long> keySet() { return null } Collection<V> values() { return null } Set<Entry<Long, V>> entrySet() { return null } } {code} > Code that causes Groovy Compiler Crash > -------------------------------------- > > Key: GROOVY-11192 > URL: https://issues.apache.org/jira/browse/GROOVY-11192 > Project: Groovy > Issue Type: Bug > Components: Static Type Checker > Affects Versions: 4.0.15 > Environment: I am running on MacBook Pro, but I think this is a > probably regardless of environment. I have been able to repeat this bug for > Groovy versions from 3.0.10 to 4.0.15 and all in between. > Reporter: John DeRegnaucourt > Assignee: Eric Milles > Priority: Major > Labels: Generics, compiler, crash, parametize, type > Attachments: MapLong-3.groovy, > TestCompilerCrashOnTemplateArgCount.groovy > > > When attempting to compile the code below, it causes the Groovy compiler to > crash with: > java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1 > at > org.codehaus.groovy.ast.tools.GenericsUtils.createGenericsSpec(GenericsUtils.java:494) > at > org.codehaus.groovy.ast.tools.GenericsUtils.createGenericsSpec(GenericsUtils.java:480) > at > org.codehaus.groovy.ast.tools.GenericsUtils.parameterizeType(GenericsUtils.java:293) > > The crash is caused because the GenericType parameter is missing on line 9 in > TestCompilerCrashOnTemplateArgCount: > private Map<Long, String> map = new MapLong<>() // causes compiler crash > ...but > private Map<Long, String> map2 = new MapLong<String>() // doest not cause > compiler crash > > The compiler is expecting one argument, but a no argument array was > allocated. When it attempts to access the array at element [0], the compiler > hits ArrayOutOfBoundsException. > > This is super easy to repeat with the two tiny source files attached. -- This message was sent by Atlassian Jira (v8.20.10#820010)