Code that causes Groovy Compiler Crash

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)

private Map<Long, String> map = new MapLong<>()   // causes compiler crash

private Map<Long, String> map2 = new MapLong<String>() // doest not cause compiler crash

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>()
}

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 }
}