Bug 574301

Description Bruno Lacombe 2021-06-18 06:17:21 EDT

Eclipse (2021-06 (4.20.0)) when opened become slow then crash with dialog box message error "scanning task crash" 
the message error content is : 
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assertion failed: Marker property value is too long: www.w3.org/1999/xlink",this.attributeName)}setValue(e){return this.element.setAttributeNS("http://www.w3.org/1999/xlink",this.attributeName,e)}subscribe(){throw new Error(`Observation of a "${this.element.nodeName}" element's "${this.propertyName}" property is not supported.`)}};const dataAttributeAccessor={getValue:(e,t)=>e.getAttribute(t),setValue:(e,t,i)=>{null==e?t.removeAttribute(i):t.setAttribute(i,e)}};let DataAttributeObserver=class{constructor(e,t){this.element=e,this.propertyName=t}getValue(){return this.element.getAttribute(this.propertyName)}setValue(e){return null==e?this.element.removeAttribute(this.propertyName):this.element.setAttribute(this.propertyName,e)}subscribe(){throw new Error(`Observation of a "${this.element.nodeName}" element's "${this.propertyName}" property is not supported.`)}},StyleObserver=class{constructor(e,t){this.element=e,this.propertyName=t,this.styles=null,this.version=0}getValue(){return this.element.style.cssText}_setProperty(e,t){let i="";null!=t&&"function"==typeof t.indexOf&&-1!==t.indexOf("!important")&&
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